35t Test

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Run Modes (per DocDB 9677)

No. Mode Description Comment
1 Continuous main DAQ mode Similar to final 'triggerless' far detector running mode, i.e. parallel trigger farm looks for nice muons in real time. Needs ZS of TPC data to work. ---
2 Triggered main DAQ mode Main selection is external trigger counter ---
3 Immediate triggered mode Use TOC triggered mode (only outputs data in window) or SSP triggered mode to avoid bottleneck. This is a fallback option of there is bottleneck in either RCE or SSP data.
4 Triggered window mode TPC in triggered non-zero suppressed mode Use before we are happy with ZS in RC
5 Wide-window burst mode TPC in burst mode with the longest window possible (512MB buffer = 0.5s). Special run mode for offline ZS studies
6 Burst mode Collect data in certain time window foo

Issues that need to be clarified

  • Purposes and architecture of the proposed online farm
  • Design of the metadata
  • Handling TPC stream data within the framework which is trigger-oriented, issues of timing and multiple interaction in temporally close slices
  • Possible necessity to duplicate parts of raw data to create overlaps, in order to make practical operation of the online farm