Meeting 2023 10 11

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GMn GEM commissioning Meetings: WEDNESDAY 10:30am - 11:30am

Link to all previous meetings: GMn GEM Commissioning Meeting

Please use sbs_gems mailing list for plots/communications and HALOG entries relevant to GEMs!

GEM inventory for GEn-RP and GEp:

  • Inventory and plan: [1]
  • HV upgrade tracker: [2]

Update on BB GEMs

  • GEM experts on-call [3]
  • Hole in layer 2 fixed
  • Problems with power supplies [4], [5]

Update on layers for GEn-RP

  • APV order, about 200 APVs
  • Review of APVs needed for near-term experiments (XW)
  • Recent DAQ problems seem to be resolved by restarted the xterms (not SBS problem)
  • SBS gas issues: need to watch bottle changeovers as the bottle didn't switch last weekend (probably due to nitrogen problem) [6]. Since forcing the bottle changeover, it should be noted that bottle changeovers are preceded by about 1-2 hours of mixture dropping by about 10%. We could force the changeovers to avoid this.
  • Update from EEL, if any

DAQ updates (Ben, Bryan, Alex)

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