https://dune.bnl.gov/w/api.php?action=feedcontributions&user=RoxanneGuenette&feedformat=atomDUNE - User contributions [en]2024-03-28T21:36:32ZUser contributionsMediaWiki 1.34.4https://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1925Installation and Integration/ActionItems/Cables2017-03-27T15:19:59Z<p>RoxanneGuenette: /* Cables and APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===Cables and APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 700px]]<br />
[[File:trial.png | 700px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
** '''Bias Cables: = 34.3mm<sup>2</sup>''' : <br />
*** 7 Bias Cables (BC)<br />
*** BC (RG316): 2.5mm OD = 4.9mm<sup>2</sup><br />
*** BC connectors (SHV plug): OD 14.5mm = 165.13mm<sup>2</sup><br />
<br />
* Missing 144mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
===Cable Testing results===<br />
<br />
Cables have been tested at BNL and J. Kierstead has prepared a summary document available here [[cabletesting]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
===Email notes from the Grounding and Shielding Group===<br />
Q: What are the consequences if we route both cold electronics cables (data and power) on the floor/wall? What shielding is required?<br />
R1: As the copper data cable becomes longer, the high speed signal (~1Gbps ) will become degraded and we need to do further testing to make sure transmission of data is OK over the greater length.<br />
R2: Yes, we need to do more, but BNL has already looked at 30m lengths of the candidate cable and they see good results from that single cable. It seems very unlikely to me that additional shielding would be needed in any case. If the cable is too marginal at the longer distance the first order correction would be a slightly larger cable size (more copper and more space improves the performance). However, I suspect that you are already planning to have significant margin to accept a somewhat larger cable plant so this probably not an issue. <br />
R1: As the power data gets longer, there will be more IR power dropped in the cable. Again, this is something we need to calculate/study based upon worst case length.<br />
R2: This may imply using a larger gauge wire for the longer cables but the increase in cross section would be modest from your point of view.<br />
<br />
<br />
Q: Can we route the power cables in the APA tubes, next to the Photon Detector cables? If yes, what requirements on shielding? What about "loops" between the power cable going up the tube and the data cables going on the floor/wall?<br />
R1: I think you heard that the PD system engineer would prefer that the APA power cables are not routed next to the PD cables. If they are, my belief is that we definitely need to provide shielding of the power cables. The current power cables selected by BNL do not include an overall shield. In any event, it is something we would want to study. We don’t expect a “loop” to be caused by routing the power and signal cables along different paths.<br />
R2: I would concur and would also expect that you should assume, at least for now, that all the power cables are shielded (and thus slightly larger cross section than the present design).<br />
<br />
<br />
Q: If we decide to route them along the outside of the APA frames (e.g. between the frames), what are you input about shielding for both types and the noise on wires?<br />
R1: I believe the power cables should be shielded. The data cables are individually shielded; system studies can be done to see if additional shielding is required.<br />
An effective shield might also include different connector choices.<br />
R2: If I understand the idea of routing along the outside of the APA frame that topology would imply both distorting the E field in a way that would require some sort of additional correcting structure on the APA combined with a loss of sensitivity over a significantly larger "gap" region between APAs. I suspect that this would be fairly violently objected to by both the APA and physics groups - you should check with them before spending much more effort on this option. I agree with Terri that from the point of view of G&S it would at worst only be a question of perhaps some additional shielding.<br />
<br />
------<br />
My feeling is that routing the cables alone the bottom and sides is the only viable alternative. I am not too concerned about either voltage drop or cable attenuation because both can be solved with larger cables. There is a potential problem for long power cables without remote sense on the front end boards. This is clearly not an insurmountable problem but it requires an integrated design effort between the WIB and front end board designers.<br />
<br />
Your question prompted me to spend some time reviewing both the 35 ton data and the results from the Talbo photon system tests at Fermilab. The design of the 35 ton readout was based on separating the APA and photon systems in frequency space. The photon system is fairly insensitive to 2 MHz signals and they can easily be filtered out with a digital filter. The APA readout has very strong attenuation above a few MHz. This did not work out in the 35 ton system. There was a strong 19 MHz signal in the photon system that appears to be associated with the APA system. The source of this signal is not yet understood. For DUNE, there will be a 50 MHz clock signal that is likely to be in phase over the entire detector as well as other medium frequency signals in the front end digital system. There will likely be quite a bit of power in the 50 MHz signal and it is in the main band of the photon digitizers. Separation in frequency space should work but we need to pay attention to isolating the digital part of the APA system from photon system. Thus, routing the photon cables inside the frames of the APA along the shortest path to the readout port while routing the APA cables along the cryostat floor is the best approach.<br />
The photon cables need to be at least shielded from the APA cables at the feed through ports. A separate port for the photon system would be even better. Note tat the photon system needs no additional cables since the bias is provided on the readout cables.<br />
The APA system is all digital and it is really not a difficult issue to run longer cables as long as the system is properly designed.<br />
The 35 ton system has shown that the cable system is a very important part f the detector electronics. The DUNE system needs both careful design and thorough testing in a prototype.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1924Installation and Integration/ActionItems/Cables2017-03-27T15:19:39Z<p>RoxanneGuenette: /* Cables and APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===Cables and APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 700px]]<br />
[[File:trial.png | 700px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
** '''Bias Cables: = 34.3mm<sup>2</sup>''' : <br />
*** 7 Bias Cables (BC)<br />
*** BC (RG316): 2.5mm OD = 4.9mm<sup>2</sup><br />
*** BC connectors (SHV plug): OD 14.5mm = 165.13mm<sup>2</sup><br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
===Cable Testing results===<br />
<br />
Cables have been tested at BNL and J. Kierstead has prepared a summary document available here [[cabletesting]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
===Email notes from the Grounding and Shielding Group===<br />
Q: What are the consequences if we route both cold electronics cables (data and power) on the floor/wall? What shielding is required?<br />
R1: As the copper data cable becomes longer, the high speed signal (~1Gbps ) will become degraded and we need to do further testing to make sure transmission of data is OK over the greater length.<br />
R2: Yes, we need to do more, but BNL has already looked at 30m lengths of the candidate cable and they see good results from that single cable. It seems very unlikely to me that additional shielding would be needed in any case. If the cable is too marginal at the longer distance the first order correction would be a slightly larger cable size (more copper and more space improves the performance). However, I suspect that you are already planning to have significant margin to accept a somewhat larger cable plant so this probably not an issue. <br />
R1: As the power data gets longer, there will be more IR power dropped in the cable. Again, this is something we need to calculate/study based upon worst case length.<br />
R2: This may imply using a larger gauge wire for the longer cables but the increase in cross section would be modest from your point of view.<br />
<br />
<br />
Q: Can we route the power cables in the APA tubes, next to the Photon Detector cables? If yes, what requirements on shielding? What about "loops" between the power cable going up the tube and the data cables going on the floor/wall?<br />
R1: I think you heard that the PD system engineer would prefer that the APA power cables are not routed next to the PD cables. If they are, my belief is that we definitely need to provide shielding of the power cables. The current power cables selected by BNL do not include an overall shield. In any event, it is something we would want to study. We don’t expect a “loop” to be caused by routing the power and signal cables along different paths.<br />
R2: I would concur and would also expect that you should assume, at least for now, that all the power cables are shielded (and thus slightly larger cross section than the present design).<br />
<br />
<br />
Q: If we decide to route them along the outside of the APA frames (e.g. between the frames), what are you input about shielding for both types and the noise on wires?<br />
R1: I believe the power cables should be shielded. The data cables are individually shielded; system studies can be done to see if additional shielding is required.<br />
An effective shield might also include different connector choices.<br />
R2: If I understand the idea of routing along the outside of the APA frame that topology would imply both distorting the E field in a way that would require some sort of additional correcting structure on the APA combined with a loss of sensitivity over a significantly larger "gap" region between APAs. I suspect that this would be fairly violently objected to by both the APA and physics groups - you should check with them before spending much more effort on this option. I agree with Terri that from the point of view of G&S it would at worst only be a question of perhaps some additional shielding.<br />
<br />
------<br />
My feeling is that routing the cables alone the bottom and sides is the only viable alternative. I am not too concerned about either voltage drop or cable attenuation because both can be solved with larger cables. There is a potential problem for long power cables without remote sense on the front end boards. This is clearly not an insurmountable problem but it requires an integrated design effort between the WIB and front end board designers.<br />
<br />
Your question prompted me to spend some time reviewing both the 35 ton data and the results from the Talbo photon system tests at Fermilab. The design of the 35 ton readout was based on separating the APA and photon systems in frequency space. The photon system is fairly insensitive to 2 MHz signals and they can easily be filtered out with a digital filter. The APA readout has very strong attenuation above a few MHz. This did not work out in the 35 ton system. There was a strong 19 MHz signal in the photon system that appears to be associated with the APA system. The source of this signal is not yet understood. For DUNE, there will be a 50 MHz clock signal that is likely to be in phase over the entire detector as well as other medium frequency signals in the front end digital system. There will likely be quite a bit of power in the 50 MHz signal and it is in the main band of the photon digitizers. Separation in frequency space should work but we need to pay attention to isolating the digital part of the APA system from photon system. Thus, routing the photon cables inside the frames of the APA along the shortest path to the readout port while routing the APA cables along the cryostat floor is the best approach.<br />
The photon cables need to be at least shielded from the APA cables at the feed through ports. A separate port for the photon system would be even better. Note tat the photon system needs no additional cables since the bias is provided on the readout cables.<br />
The APA system is all digital and it is really not a difficult issue to run longer cables as long as the system is properly designed.<br />
The 35 ton system has shown that the cable system is a very important part f the detector electronics. The DUNE system needs both careful design and thorough testing in a prototype.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1923Installation and Integration/ActionItems/Cables2017-03-27T15:15:20Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===Cables and APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 700px]]<br />
[[File:trial.png | 700px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
===Cable Testing results===<br />
<br />
Cables have been tested at BNL and J. Kierstead has prepared a summary document available here [[cabletesting]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
===Email notes from the Grounding and Shielding Group===<br />
Q: What are the consequences if we route both cold electronics cables (data and power) on the floor/wall? What shielding is required?<br />
R1: As the copper data cable becomes longer, the high speed signal (~1Gbps ) will become degraded and we need to do further testing to make sure transmission of data is OK over the greater length.<br />
R2: Yes, we need to do more, but BNL has already looked at 30m lengths of the candidate cable and they see good results from that single cable. It seems very unlikely to me that additional shielding would be needed in any case. If the cable is too marginal at the longer distance the first order correction would be a slightly larger cable size (more copper and more space improves the performance). However, I suspect that you are already planning to have significant margin to accept a somewhat larger cable plant so this probably not an issue. <br />
R1: As the power data gets longer, there will be more IR power dropped in the cable. Again, this is something we need to calculate/study based upon worst case length.<br />
R2: This may imply using a larger gauge wire for the longer cables but the increase in cross section would be modest from your point of view.<br />
<br />
<br />
Q: Can we route the power cables in the APA tubes, next to the Photon Detector cables? If yes, what requirements on shielding? What about "loops" between the power cable going up the tube and the data cables going on the floor/wall?<br />
R1: I think you heard that the PD system engineer would prefer that the APA power cables are not routed next to the PD cables. If they are, my belief is that we definitely need to provide shielding of the power cables. The current power cables selected by BNL do not include an overall shield. In any event, it is something we would want to study. We don’t expect a “loop” to be caused by routing the power and signal cables along different paths.<br />
R2: I would concur and would also expect that you should assume, at least for now, that all the power cables are shielded (and thus slightly larger cross section than the present design).<br />
<br />
<br />
Q: If we decide to route them along the outside of the APA frames (e.g. between the frames), what are you input about shielding for both types and the noise on wires?<br />
R1: I believe the power cables should be shielded. The data cables are individually shielded; system studies can be done to see if additional shielding is required.<br />
An effective shield might also include different connector choices.<br />
R2: If I understand the idea of routing along the outside of the APA frame that topology would imply both distorting the E field in a way that would require some sort of additional correcting structure on the APA combined with a loss of sensitivity over a significantly larger "gap" region between APAs. I suspect that this would be fairly violently objected to by both the APA and physics groups - you should check with them before spending much more effort on this option. I agree with Terri that from the point of view of G&S it would at worst only be a question of perhaps some additional shielding.<br />
<br />
------<br />
My feeling is that routing the cables alone the bottom and sides is the only viable alternative. I am not too concerned about either voltage drop or cable attenuation because both can be solved with larger cables. There is a potential problem for long power cables without remote sense on the front end boards. This is clearly not an insurmountable problem but it requires an integrated design effort between the WIB and front end board designers.<br />
<br />
Your question prompted me to spend some time reviewing both the 35 ton data and the results from the Talbo photon system tests at Fermilab. The design of the 35 ton readout was based on separating the APA and photon systems in frequency space. The photon system is fairly insensitive to 2 MHz signals and they can easily be filtered out with a digital filter. The APA readout has very strong attenuation above a few MHz. This did not work out in the 35 ton system. There was a strong 19 MHz signal in the photon system that appears to be associated with the APA system. The source of this signal is not yet understood. For DUNE, there will be a 50 MHz clock signal that is likely to be in phase over the entire detector as well as other medium frequency signals in the front end digital system. There will likely be quite a bit of power in the 50 MHz signal and it is in the main band of the photon digitizers. Separation in frequency space should work but we need to pay attention to isolating the digital part of the APA system from photon system. Thus, routing the photon cables inside the frames of the APA along the shortest path to the readout port while routing the APA cables along the cryostat floor is the best approach.<br />
The photon cables need to be at least shielded from the APA cables at the feed through ports. A separate port for the photon system would be even better. Note tat the photon system needs no additional cables since the bias is provided on the readout cables.<br />
The APA system is all digital and it is really not a difficult issue to run longer cables as long as the system is properly designed.<br />
The 35 ton system has shown that the cable system is a very important part f the detector electronics. The DUNE system needs both careful design and thorough testing in a prototype.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Cabletesting&diff=1876Cabletesting2017-03-01T17:16:58Z<p>RoxanneGuenette: </p>
<hr />
<div>Several cables have been tested in 35 meter lengths using active equalization (MAX3800). Shown is a result for a Samtec 26 gauge cable typical eye diagram for equalized signals. This is very typical and doesn’t vary much from cable to cable in appearance. The amplitude is nearly identical for all equalized signals irrespective of the cable with only some smaller variations in jitter.<br />
<br />
[[File:test1.png]]<br />
<br />
Typical eye diagram and measurement results for an active equalized twinax cable<br />
<br />
[[File:test2.png]]<br />
<br />
Table: 35 meter Cables tested to date. At a Pre-emphasis of 17 none of the cables passed a BER test<br />
<br />
[[File:table1.png]]<br />
<br />
All cables in the table above failed the BER test with multiple bit errors when measured up to 1013 bits or greater. Up to this time all signals were measured with a pre-emphasis of 17 as was done in this table. Following is a BER test made on 3 of the same cables as above; the difference is a PE of 21 was used. A PE of 21 generally provides a better eye diagram of highly attenuated signals than a PE of 17.<br />
<br />
[[File:table2.png]]<br />
<br />
Note that 2 of the cables (Samtec and Leoni) would more than likely have passed a BER test which was stopped at 1013 bits.<br />
<br />
Following are cable length measurements of 25 meters, 1.3 GHz,<br />
<br />
[[File:table3.png]]</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Table3.png&diff=1875File:Table3.png2017-03-01T16:50:36Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Table2.png&diff=1874File:Table2.png2017-03-01T16:50:21Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Cabletesting&diff=1873Cabletesting2017-03-01T16:50:07Z<p>RoxanneGuenette: </p>
<hr />
<div>Several cables have been tested in 35 meter lengths using active equalization (MAX3800). Shown is a result for a Samtec 26 gauge cable typical eye diagram for equalized signals. This is very typical and doesn’t vary much from cable to cable in appearance. The amplitude is nearly identical for all equalized signals irrespective of the cable with only some smaller variations in jitter.<br />
<br />
[[File:test1.png]]<br />
<br />
Typical eye diagram and measurement results for an active equalized twinax cable<br />
<br />
[[File:test2.png]]<br />
<br />
Table: 35 meter Cables tested to date. At a Pre-emphasis of 17 none of the cables passed a BER test<br />
<br />
[[File:table1.png]]<br />
<br />
All cables in the table above failed the BER test with multiple bit errors when measured up to 1013 bits or greater. Up to this time all signals were measured with a pre-emphasis of 17 as was done in this table. Following is a BER test made on 3 of the same cables as above; the difference is a PE of 21 was used. A PE of 21 generally provides a better eye diagram of highly attenuated signals than a PE of 17.<br />
<br />
[[File:table2.png]]<br />
Note that 2 of the cables (Samtec and Leoni) would more than likely have passed a BER test which was stopped at 1013 bits.<br />
<br />
Following are cable length measurements of 25 meters, 1.3 GHz,<br />
<br />
<br />
[[File:table3.png]]</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Table1.png&diff=1872File:Table1.png2017-03-01T16:49:47Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Test2.png&diff=1871File:Test2.png2017-03-01T16:49:21Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Test1.png&diff=1870File:Test1.png2017-03-01T16:49:02Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Cabletesting&diff=1869Cabletesting2017-03-01T16:48:45Z<p>RoxanneGuenette: Created page with "Several cables have been tested in 35 meter lengths using active equalization (MAX3800). Shown is a result for a Samtec 26 gauge cable typical eye diagram for equalized signal..."</p>
<hr />
<div>Several cables have been tested in 35 meter lengths using active equalization (MAX3800). Shown is a result for a Samtec 26 gauge cable typical eye diagram for equalized signals. This is very typical and doesn’t vary much from cable to cable in appearance. The amplitude is nearly identical for all equalized signals irrespective of the cable with only some smaller variations in jitter.<br />
<br />
[[File:test1.png]]<br />
Typical eye diagram and measurement results for an active equalized twinax cable<br />
[[File:test2.png]]<br />
Table: 35 meter Cables tested to date. At a Pre-emphasis of 17 none of the cables passed a BER test<br />
[[File:table1.png]]<br />
<br />
All cables in the table above failed the BER test with multiple bit errors when measured up to 1013 bits or greater. Up to this time all signals were measured with a pre-emphasis of 17 as was done in this table. Following is a BER test made on 3 of the same cables as above; the difference is a PE of 21 was used. A PE of 21 generally provides a better eye diagram of highly attenuated signals than a PE of 17.<br />
<br />
[[File:table2.png]]<br />
Note that 2 of the cables (Samtec and Leoni) would more than likely have passed a BER test which was stopped at 1013 bits.<br />
<br />
Following are cable length measurements of 25 meters, 1.3 GHz,<br />
<br />
<br />
[[File:table3.png]]</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1868Installation and Integration/ActionItems/Cables2017-03-01T16:44:56Z<p>RoxanneGuenette: /* Information on current status */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 700px]]<br />
[[File:trial.png | 700px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
===Cable Testing results===<br />
<br />
Cables have been tested at BNL and J. Kierstead has prepared a summary document available here [[cabletesting]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
===Email notes from the Grounding and Shielding Group===<br />
Q: What are the consequences if we route both cold electronics cables (data and power) on the floor/wall? What shielding is required?<br />
R1: As the copper data cable becomes longer, the high speed signal (~1Gbps ) will become degraded and we need to do further testing to make sure transmission of data is OK over the greater length.<br />
R2: Yes, we need to do more, but BNL has already looked at 30m lengths of the candidate cable and they see good results from that single cable. It seems very unlikely to me that additional shielding would be needed in any case. If the cable is too marginal at the longer distance the first order correction would be a slightly larger cable size (more copper and more space improves the performance). However, I suspect that you are already planning to have significant margin to accept a somewhat larger cable plant so this probably not an issue. <br />
R1: As the power data gets longer, there will be more IR power dropped in the cable. Again, this is something we need to calculate/study based upon worst case length.<br />
R2: This may imply using a larger gauge wire for the longer cables but the increase in cross section would be modest from your point of view.<br />
<br />
<br />
Q: Can we route the power cables in the APA tubes, next to the Photon Detector cables? If yes, what requirements on shielding? What about "loops" between the power cable going up the tube and the data cables going on the floor/wall?<br />
R1: I think you heard that the PD system engineer would prefer that the APA power cables are not routed next to the PD cables. If they are, my belief is that we definitely need to provide shielding of the power cables. The current power cables selected by BNL do not include an overall shield. In any event, it is something we would want to study. We don’t expect a “loop” to be caused by routing the power and signal cables along different paths.<br />
R2: I would concur and would also expect that you should assume, at least for now, that all the power cables are shielded (and thus slightly larger cross section than the present design).<br />
<br />
<br />
Q: If we decide to route them along the outside of the APA frames (e.g. between the frames), what are you input about shielding for both types and the noise on wires?<br />
R1: I believe the power cables should be shielded. The data cables are individually shielded; system studies can be done to see if additional shielding is required.<br />
An effective shield might also include different connector choices.<br />
R2: If I understand the idea of routing along the outside of the APA frame that topology would imply both distorting the E field in a way that would require some sort of additional correcting structure on the APA combined with a loss of sensitivity over a significantly larger "gap" region between APAs. I suspect that this would be fairly violently objected to by both the APA and physics groups - you should check with them before spending much more effort on this option. I agree with Terri that from the point of view of G&S it would at worst only be a question of perhaps some additional shielding.<br />
<br />
------<br />
My feeling is that routing the cables alone the bottom and sides is the only viable alternative. I am not too concerned about either voltage drop or cable attenuation because both can be solved with larger cables. There is a potential problem for long power cables without remote sense on the front end boards. This is clearly not an insurmountable problem but it requires an integrated design effort between the WIB and front end board designers.<br />
<br />
Your question prompted me to spend some time reviewing both the 35 ton data and the results from the Talbo photon system tests at Fermilab. The design of the 35 ton readout was based on separating the APA and photon systems in frequency space. The photon system is fairly insensitive to 2 MHz signals and they can easily be filtered out with a digital filter. The APA readout has very strong attenuation above a few MHz. This did not work out in the 35 ton system. There was a strong 19 MHz signal in the photon system that appears to be associated with the APA system. The source of this signal is not yet understood. For DUNE, there will be a 50 MHz clock signal that is likely to be in phase over the entire detector as well as other medium frequency signals in the front end digital system. There will likely be quite a bit of power in the 50 MHz signal and it is in the main band of the photon digitizers. Separation in frequency space should work but we need to pay attention to isolating the digital part of the APA system from photon system. Thus, routing the photon cables inside the frames of the APA along the shortest path to the readout port while routing the APA cables along the cryostat floor is the best approach.<br />
The photon cables need to be at least shielded from the APA cables at the feed through ports. A separate port for the photon system would be even better. Note tat the photon system needs no additional cables since the bias is provided on the readout cables.<br />
The APA system is all digital and it is really not a difficult issue to run longer cables as long as the system is properly designed.<br />
The 35 ton system has shown that the cable system is a very important part f the detector electronics. The DUNE system needs both careful design and thorough testing in a prototype.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1843Installation and Integration/ActionItems/Cables2017-01-18T08:31:54Z<p>RoxanneGuenette: /* Concerns and questions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 700px]]<br />
[[File:trial.png | 700px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
===Email notes from the Grounding and Shielding Group===<br />
Q: What are the consequences if we route both cold electronics cables (data and power) on the floor/wall? What shielding is required?<br />
R1: As the copper data cable becomes longer, the high speed signal (~1Gbps ) will become degraded and we need to do further testing to make sure transmission of data is OK over the greater length.<br />
R2: Yes, we need to do more, but BNL has already looked at 30m lengths of the candidate cable and they see good results from that single cable. It seems very unlikely to me that additional shielding would be needed in any case. If the cable is too marginal at the longer distance the first order correction would be a slightly larger cable size (more copper and more space improves the performance). However, I suspect that you are already planning to have significant margin to accept a somewhat larger cable plant so this probably not an issue. <br />
R1: As the power data gets longer, there will be more IR power dropped in the cable. Again, this is something we need to calculate/study based upon worst case length.<br />
R2: This may imply using a larger gauge wire for the longer cables but the increase in cross section would be modest from your point of view.<br />
<br />
<br />
Q: Can we route the power cables in the APA tubes, next to the Photon Detector cables? If yes, what requirements on shielding? What about "loops" between the power cable going up the tube and the data cables going on the floor/wall?<br />
R1: I think you heard that the PD system engineer would prefer that the APA power cables are not routed next to the PD cables. If they are, my belief is that we definitely need to provide shielding of the power cables. The current power cables selected by BNL do not include an overall shield. In any event, it is something we would want to study. We don’t expect a “loop” to be caused by routing the power and signal cables along different paths.<br />
R2: I would concur and would also expect that you should assume, at least for now, that all the power cables are shielded (and thus slightly larger cross section than the present design).<br />
<br />
<br />
Q: If we decide to route them along the outside of the APA frames (e.g. between the frames), what are you input about shielding for both types and the noise on wires?<br />
R1: I believe the power cables should be shielded. The data cables are individually shielded; system studies can be done to see if additional shielding is required.<br />
An effective shield might also include different connector choices.<br />
R2: If I understand the idea of routing along the outside of the APA frame that topology would imply both distorting the E field in a way that would require some sort of additional correcting structure on the APA combined with a loss of sensitivity over a significantly larger "gap" region between APAs. I suspect that this would be fairly violently objected to by both the APA and physics groups - you should check with them before spending much more effort on this option. I agree with Terri that from the point of view of G&S it would at worst only be a question of perhaps some additional shielding.<br />
<br />
------<br />
My feeling is that routing the cables alone the bottom and sides is the only viable alternative. I am not too concerned about either voltage drop or cable attenuation because both can be solved with larger cables. There is a potential problem for long power cables without remote sense on the front end boards. This is clearly not an insurmountable problem but it requires an integrated design effort between the WIB and front end board designers.<br />
<br />
Your question prompted me to spend some time reviewing both the 35 ton data and the results from the Talbo photon system tests at Fermilab. The design of the 35 ton readout was based on separating the APA and photon systems in frequency space. The photon system is fairly insensitive to 2 MHz signals and they can easily be filtered out with a digital filter. The APA readout has very strong attenuation above a few MHz. This did not work out in the 35 ton system. There was a strong 19 MHz signal in the photon system that appears to be associated with the APA system. The source of this signal is not yet understood. For DUNE, there will be a 50 MHz clock signal that is likely to be in phase over the entire detector as well as other medium frequency signals in the front end digital system. There will likely be quite a bit of power in the 50 MHz signal and it is in the main band of the photon digitizers. Separation in frequency space should work but we need to pay attention to isolating the digital part of the APA system from photon system. Thus, routing the photon cables inside the frames of the APA along the shortest path to the readout port while routing the APA cables along the cryostat floor is the best approach.<br />
The photon cables need to be at least shielded from the APA cables at the feed through ports. A separate port for the photon system would be even better. Note tat the photon system needs no additional cables since the bias is provided on the readout cables.<br />
The APA system is all digital and it is really not a difficult issue to run longer cables as long as the system is properly designed.<br />
The 35 ton system has shown that the cable system is a very important part f the detector electronics. The DUNE system needs both careful design and thorough testing in a prototype.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Trial.png&diff=1842File:Trial.png2017-01-18T08:26:58Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1841Installation and Integration/ActionItems/Cables2017-01-18T08:22:46Z<p>RoxanneGuenette: </p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 700px]]<br />
[[File:trial.png | 700px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/Meeting_G%26S&diff=1820Installation and Integration/Meeting G&S2016-12-20T22:11:15Z<p>RoxanneGuenette: Created page with "=Grounding and Shielding meeting= == 20 December 2016== I presented the slide on docdb http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=2032 The goal was to info..."</p>
<hr />
<div>=Grounding and Shielding meeting=<br />
<br />
== 20 December 2016==<br />
I presented the slide on docdb http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=2032 <br />
<br />
The goal was to inform that Grounding and Shielding group of our current options and issues. There was some discussion regarding these options, but no one had any final thoughts. Here are some point that were brought up:<br />
<br />
<br />
- Need to shield the cables. <br />
<br />
- Having longer cables (> 25m) causes dispersion to become a problem, No one is keen on going to longer cables.<br />
- Data cables might be shorten and linked with a connector to avoid dispersion, a concern from some people. This would effectively double the number (and weight) of data cable, impacting the number of connectors and flanges (or at least connectors on the flanges)<br />
<br />
- PD team have a problem with longer cables. They already are at the limit of what they have tested. Longer cables will affect the pulse amplitude, which will decreases and the signal gets wider. <br />
<br />
It was agreed that for the moment, we should continue to aim at keeping that PD cables inside the APA tubes.<br />
<br />
It could be good to have the power cables inside the tube since it would reduce the length (and keep it identical for all cables). The frame is grounded providing self-shielding for the cables to the wires. BUT they are not shielded from the PD and the PD team is not completely happy to have these cables next to theirs.<br />
<br />
- If we go with solution C (along floor and walls) we should consider having only three different lengths of cables so that we will have few calibration constants to correct for the different lengths.<br />
<br />
Grounding rules: APA are wanted to be independent, but in DUNE, it might not be the case. The questions was not answered.</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration&diff=1819Installation and Integration2016-12-20T22:09:55Z<p>RoxanneGuenette: </p>
<hr />
<div>=Integration and Installation=<br />
[https://dune.bnl.gov/wiki/Installation_and_Integration/ActionItems#TCO_interface Integration Action ITEMS]<br />
<br />
==Far Detector Integration==<br />
The interface between the Conventional Facilities and the cryogenic/cryostat with the Far Detector are a major component of the integration group for DUNE.<br />
<br />
[[Image:CF-design-schedule.png |800px]]<br />
<br />
The table of external milestones connected to the CF design process is listed below:<br />
<br />
[[Image:InterfaceMilestones-CF-v2.png |400px]]<br />
<br />
===Key Documents===<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=136 100% Preliminary design for Buildings and Site Infrastructure and Excavation from Arup USA]<br />
**BSI Preliminary Design Report (2015-08-24_BSI-100 Percent PDR.pdf, 12.6 MB)<br />
**BSI Surface Design Drawings (Surface Binder.pdf, 16.0 MB)<br />
**BSI Underground Drawings (Underground Binder.pdf, 34.2 MB)<br />
**EXC Drawings (Excavation Drawings.pdf, 30.8 MB)<br />
**EXC Preliminary Design Report (EXC_100_PDR Issue 0.pdf, 76.9 MB)<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=1489 LBNF BSI Pre-Excavation 60% Final Design Submission]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=586 Comprehensive Logistics Plan]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=1490 LBNF EXC Pre-Excavation 60% Final Design Submission]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=1832 LBNF BSI Pre-Excavation 90% Final Design Submission]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=1833 LBNF EXC Pre-Excavation 90% Final Design Submission]<br />
<br />
===Logistics===<br />
<br />
The general plan for how materials will be transported to and within SURF is found in the SURF Logistics Assumptions document.<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=139 SURF Logistics Assumptions document]<br />
<br />
<br />
The [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=586 Comprehensive Logistics Plan] describes in some detail how the shaft usage will need to be planned. It also contains on page 9 the description of the detector needs which DUNE defined for the logistics study.<br />
<br />
3.1.3 Time Projection Chambers<br />
The cryostat time projection chamber (TPC; see Figure 6) comprises the following components:<br />
* Anode Plane Assemblies (APAs) – 150 ea. 2.3m × 6.3m × 0.1m<br />
** Four APAs per shipping container (see Figure 7)<br />
** Estimated weight of 3,600kg per container<br />
* Cathode Plane Assemblies (CPAs) – 200 ea.<br />
** 2.3m × 3m (1400 m2)<br />
** Four CPAs per shipping container<br />
* Field cage (2,000m2)<br />
* Readout electronics and racks – 75 ea.<br />
* High V oltage (HV) system<br />
The main elements are shipped in containers 1.3m × 2.8m × 7.3m (APA’s) and 0.5m × 2.5m × 3.8m (CPA’s) and 0.6m × 0.8m × 2.1m (racks). Most items will be configured in skid-size containers.<br />
<br />
Other Key documents and events related to the SURF logistics are:<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=586 Comprehensive Logistics Plan]<br />
*[https://web.fnal.gov/project/LBNF/ReviewsAndAssessments/LBNF%20Logistics%20Planning%20Workshop/SitePages/Home.aspx Logistics Planning Workshop August 11-15 2015]<br />
** [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=229 Far Detector presentation and logistics equipment transport spreadsheet]<br />
<br />
===Surface Facilities===<br />
<br />
===Ross/Yates Shaft Hoisting===<br />
<br />
The basic information related to hoisting is summarized in DOCDB 328 [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=328 Far Site Shaft Hoisting Assumptions and Parameters].<br />
<br />
Reference documents in DOCDB 328:<br />
* Draft set of requirements for a new cage <br />
**[http://docs.dunescience.org:8080/cgi-bin/RetrieveFile?docid=328&filename=Ross%20Cage%20Conveyance%20Requirements.pdf&version=5 Ross Cage Conveyance Requirements.pdf, 70.8 kB]<br />
* Interface discussion presentation describing load delivery <br />
**[http://docs.dunescience.org:8080/cgi-bin/RetrieveFile?docid=328&filename=Ross%20Shaft%20Logistics%20Overview.pptx&version=5 Ross Shaft Logistics Overview.pptx, 1.7 MB]<br />
*List of Cryostat components and how to deliver through shaft <br />
**[http://docs.dunescience.org:8080/cgi-bin/RetrieveFile?docid=328&filename=Analysis_of_CERN_Cryostat_Versus_Ross_Shaft_Limitations_17JAN16_MFJ.xls&version=5 Analysis_of_CERN_Cryostat_Versus_Ross_Shaft_Limitation...xls, 77.0 kB]<br />
<br />
===Underground facilities===<br />
The far site conventional facilities is using the information from the Drift Study for referencing the maximum size objects that need to be accommodated by the surf infrastructure.<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=1313 Drift Size Optimization Study]<br />
<br />
===Interface Management ===<br />
The interfaces between Conventional Facilities and the Far Detector are documented through a series of Interface Control Documents that are agreed upon by both LBNF and DUNE. The ICDs themselves generally only identify the interface and then refer to a separate key document to describe and define the interface.<br />
<br />
[https://fermipoint.fnal.gov/project/LBNF/Project%20Office/Systems%20Engineering/SitePages/Interface%20Management.aspx LBNF Systems Engineering webpage for interface management ]<br />
<br />
[[Image:Screen Shot Sys-Eng-web.png |700px]]<br />
<br />
====Interface Control Documents====<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=199 CF Far Site Surface <--> Far Detector Design]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=197 CF Far Site Shafts and Drifts <--> Far Detector Design]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=201 CF Far Site Caverns <--> Far Detector Design]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=198 CF Far Site Surface <--> Far Detector Construction]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=196 CF Far Site Shafts and Drifts <--> Far Detector Construction]<br />
* [http://docs.dunescience.org:8080/cgi-bin/ShowDocument?docid=200 CF Far Site Caverns <--> Far Detector Construction]<br />
<br />
=Single-Phase Far Detector Installation=<br />
<br />
<br />
==Cryostat internal installation==<br />
<br />
===Material Handling ===<br />
<br />
[[Image:Palift-photo.png|300px| manlift Palazzani]]<br />
<br />
Roof access is primarily necessary during electronics cabling and deployment of the FC panels. An areal platform will be used when work at heights is required. One possibility which was used quite successfully are the Palazzani Industrie platforms.<br />
[http://www.palazzani.it/products/detail/23?lang=en Palazzani areal platforms]<br />
<br />
[http://www.palazzani.it/public/TZX%20550%20(170)_USA100346.pdf Data Sheet for a small platform (1m wide) areal lift]<br />
<br />
=Dual-Phase Far Detector Installation=<br />
<br />
=Miscellaneous=<br />
<br />
[https://dune.bnl.gov/wiki/Installation_and_Integration/Underground_Views Underground Views]<br />
<br />
[https://edms.cern.ch/document/1493375/21 ENH1 Schedule]<br />
<br />
=Navigation=<br />
[https://web.fnal.gov/collaboration/DUNE/SitePages/FD%20Installation%20and%20Integration%20Working%20Group.aspx Back to Working group page]<br />
<br />
=Action items=<br />
[https://dune.bnl.gov/wiki/Installation_and_Integration/ActionItems#2._Underground_space Action item page]<br />
<br />
=Relevant meetings minutes=<br />
[https://dune.bnl.gov/wiki/Installation_and_Integration/Meeting_G&S Grounding and Shielding meeting]</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1786Installation and Integration/ActionItems/Cables2016-11-18T13:28:14Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 700px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1785Installation and Integration/ActionItems/Cables2016-11-18T13:28:05Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png | 500px]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1784Installation and Integration/ActionItems/Cables2016-11-18T13:27:44Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png] \ 500px]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Arrangement.png&diff=1783File:Arrangement.png2016-11-18T13:27:13Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1782Installation and Integration/ActionItems/Cables2016-11-18T13:27:00Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> )<br />
<br />
[[File:arrangement.png]]<br />
<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1781Installation and Integration/ActionItems/Cables2016-11-18T13:00:21Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> ()<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**** '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1780Installation and Integration/ActionItems/Cables2016-11-18T12:59:06Z<p>RoxanneGuenette: /* Information on current status */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> ()<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA <br />
[[File:PC_cable.png|200px]]<br />
<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1779Installation and Integration/ActionItems/Cables2016-11-18T12:56:37Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 1891.2mm<sup>2</sup> (with connectors: 3681.4mm<sup>2</sup> ()<br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1778Installation and Integration/ActionItems/Cables2016-11-18T12:54:43Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
*** If bundled 10 Data + 10 LV per APA side= '''1449.4mm<sup>2</sup>''' (with connectors = 3239.6mm<sup>2</sup>)<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1777Installation and Integration/ActionItems/Cables2016-11-18T12:51:31Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.88mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1776Installation and Integration/ActionItems/Cables2016-11-18T12:50:55Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only '''10 of each''' to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.97mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness = 105.72mm<sup>2</sup><br />
*** LV cables: Width: 22.86mm, Thick: 2.54mm = 58.06mm<sup>2</sup><br />
*** LV cable connectors: Width=24.33mm, Thick=8.97mm = 218.24mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1775Installation and Integration/ActionItems/Cables2016-11-18T12:25:44Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only 10 of each to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.97mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness<br />
*** LV cables: Width: smaller than 2.6mm, Thick: <br />
*** LV cable connectors: at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm at 105.56mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 500px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1774Installation and Integration/ActionItems/Cables2016-11-18T12:25:32Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only 10 of each to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.97mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness<br />
*** LV cables: Width: smaller than 2.6mm, Thick: <br />
*** LV cable connectors: at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm at 105.56mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png| 200px]] [[File: lv_cable.png | 400px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Lv_cable.png&diff=1773File:Lv cable.png2016-11-18T12:25:03Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1772Installation and Integration/ActionItems/Cables2016-11-18T12:24:53Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only 10 of each to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.97mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness<br />
*** LV cables: Width: smaller than 2.6mm, Thick: <br />
*** LV cable connectors: at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm at 105.56mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]] [[File: lv_cable.png |400px]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1771Installation and Integration/ActionItems/Cables2016-11-18T12:24:21Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only 10 of each to pass by APA sides<br />
*** Data cables: Width=21.4mm, Thick=4.06mm = 86.97mm<sup>2</sup><br />
*** Data cable connectors: Width = 26.04mm, Thick: smaller than the cable bundle thickness<br />
*** LV cables: Width: smaller than 2.6mm, Thick: <br />
*** LV cable connectors: at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm at 105.56mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1770Installation and Integration/ActionItems/Cables2016-11-18T12:14:53Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only 10 of each to pass by APA sides<br />
***Data cables:<br />
****Width=21.4mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm at 105.56mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1769Installation and Integration/ActionItems/Cables2016-11-18T11:44:04Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** '''PD: = 441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's NOT included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
<br />
**Support bar = 13mmx40mm = 520mm<sup>2</sup>, since it can be added after the cable routing, it's NOT included in total<br />
<br />
** Potential CE cables, 20 data cables + 20 LV cables, but only 10 of each to pass by APA sides<br />
***Data cables:<br />
****Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm at 105.56mm<sup>2</sup>:<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1768Installation and Integration/ActionItems/Cables2016-11-18T11:41:13Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''441.8mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1767Installation and Integration/ActionItems/Cables2016-11-18T11:40:42Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' : <br />
***From Dave/Leon: <br />
**** PD cables have spec diameter of 6.9mm, but in reality, due to uniformities, they are between 7.5 and 8 mm => area = 44.2mm<sup>2</sup><br />
**** 5 PD cables = 5 x 44.2mm<sup>2</sup> = 220.4mm<sup>2</sup><br />
**** 10 PD cables= 441.8mm<sup>2 </sup><br />
**** NOTE: the PD heads are 18.5mmx18.5mm = 342.25mm<sup>2 </sup>, but it's not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1766Installation and Integration/ActionItems/Cables2016-11-18T11:35:26Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png|200px]]<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1765Installation and Integration/ActionItems/Cables2016-11-18T11:35:12Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PC_cable.png]]<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:PC_cable.png&diff=1764File:PC cable.png2016-11-18T11:34:50Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1763Installation and Integration/ActionItems/Cables2016-11-18T11:30:00Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PD_cable.png]]<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:PD_cable.pdf&diff=1762File:PD cable.pdf2016-11-18T11:28:44Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1761Installation and Integration/ActionItems/Cables2016-11-18T11:28:33Z<p>RoxanneGuenette: /* APA Dimensions */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
[[File:PD_cable.pdf]]<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1755Installation and Integration/ActionItems/Cables2016-11-11T08:22:18Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1754Installation and Integration/ActionItems/Cables2016-11-11T08:22:03Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
[[File:cable_drawing.png | 500px]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1751Installation and Integration/ActionItems/Cables2016-11-10T13:38:37Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
[[File:cable_drawing.png]][[File:cable_drawing2.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Cable_drawing2.png&diff=1750File:Cable drawing2.png2016-11-10T13:37:44Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1749Installation and Integration/ActionItems/Cables2016-11-10T13:37:26Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]]<br />
[[File:cable_drawing.png]][[File:cable_drawing2]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=File:Cable_drawing.png&diff=1748File:Cable drawing.png2016-11-10T13:34:26Z<p>RoxanneGuenette: </p>
<hr />
<div></div>RoxanneGuenettehttps://dune.bnl.gov/w/index.php?title=Installation_and_Integration/ActionItems/Cables&diff=1747Installation and Integration/ActionItems/Cables2016-11-10T13:33:50Z<p>RoxanneGuenette: /* Cable size */</p>
<hr />
<div>= Cable routing decision =<br />
<br />
There are currently two potential options:<br />
<br />
1) Route the cables from the lower APA up "along" the upper APA frame.<br />
<br />
2) Route the cables down to the floor of the cryostat all the way to the walls and up the walls. <br />
<br />
== Information on current status ==<br />
<br />
===APA Dimensions===<br />
<br />
* '''APA opening dimensions (usable): 44mm x 63 mm = 2772mm<sup>2''' (constrained by foot tube opening -> Cannot be larger to have enough space for glueing/soldering wires on the foot boards)<br />
<br />
Actual dimensions: 70mm x 95mm = 6650mm<sup>2</sup> (see below for drawings)<br />
<br />
* '''Occupancy''': -> 2881mm<sup>2</sup><br />
** PD: = '''785.4mm<sup>2</sup>''' = 10 PD cables (10mm diameter) = 10 x 78.54mm<sup>2</sup> = 785.4mm<sup>2</sup> ) NOTE: the PD head at 18.5mmx18.5mm = 342.25mm<sup>2 </sup> is not included here since it takes space only inside the tube and doesn't not go through the foot tube opening<br />
**Support bar = 13mmx40mm = '''520mm<sup>2</sup>'''<br />
** Potential CE cables (20 data cables + 20 LV cables): Data cables at 105.56mm<sup>2</sup>: Width=26mm, Thick=~4.06mm + LV cables at 52mm<sup>2</sup>: Width=26mm, Thick=~2.0mm<br />
** If bundled 10 Data + 10 LV per APA side= '''1575.6mm<sup>2</sup>'''<br />
* Missing 110mm<sup>2</sup>! That's 2 LV cable connector areas. Which means that if we extract the bundle from the cold cables not in one big bundle of connectors, it might be doable. <br />
<br />
<br />
'''Drawings''':<br />
<br />
[[File:APA.png]]<br />
<br />
[[File:xsec.png]]<br />
<br />
[[File:PD_cables.jpeg | 500px]] [[File: PD_Cables_2.jpeg |500px]]<br />
<br />
===Cable size===<br />
<br />
* '''PD cables''' (Cat6): 9-10 mm diameter + PD head (18.5mm x 18.5mm). 5 cables per APA -> 10 cables in upper APA<br />
<br />
* '''Cold cables''': Max length = 25m (validated length for Gore), 20 CE cable pairs per APA (can they be split for each side of APA frame? -> 10 CE cable pairs per tube?)<br />
-> CE cable pairs = blue data cables (26mm wide connector) + black-white LV cables (16mm wide connector)<br />
[[File:cables.png]][[File:cable_drawing.png]]<br />
<br />
===Cable routing plan for protoDUNE ===<br />
Dimensions: 7m wide x 6m high<br />
[[File:cable_routing.png]]<br />
<br />
[[File:routing2.png|500px]][[File:routing1.png|500px]]<br />
<br />
== Concerns and questions ==<br />
<br />
* How difficult is it to bring the cables up (in or on?) the APA frame? How long are the cables? What type of access we need to pass the cables through?<br />
<br />
* Are there any mechanical difficulties to pass the cables up the APA frame? Weight? Space?<br />
<br />
* Grounding and Shiedling: Can we bundle the cables together? Do we need mechanical/electrical separations in the APA frame?<br />
<br />
* If we go along the cryostat wall, we need longer cables. What is the impact of longer cables on readout? Procurement?<br />
<br />
* Is there anyway we can attached the cables on the cryostat wall? At the moment there is no mechanical device on the inner cryostat membrane. The space between APA and membrane is ~15cm. Need to take the weight of the cables into account in this design solution.<br />
<br />
== Group interface ==<br />
* Inst.& Int.: Roxanne, Bill, Marvin<br />
* APA: PSL (Lee and Dan) and Daresbury (Jo)<br />
* PD: David, Leon and Gary<br />
* CE: Matt<br />
<br />
== Potential testing sites==<br />
<br />
* Ash River (contact: Bill)<br />
* Daresbury (contact: Jo)</div>RoxanneGuenette