GEM Meeting/20190125

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Logistic information

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Minutes

Tao - SLAC analysis update, quantifying differences between QDC and GEM multiplicities, and GEM pedestal studies (ask Cameron for SLAC test beam user account on ELOG):

• Verified that all data is complete in QDC and GEM (no missed events in one or the other)
• Cross checked Decoder with event counter
  • Two data words encoding event number added to decoder to double check event counts
    • QDC index starts at 0, GEM MPD index starts at 1, so we expect an offset by one in these event counters
• Trying to find another way to cross check the analysis steps
• GEM multiplicities appear to be systematically ~15% lower than QDC multiplicities

Present

Chandan, Cameron, Seamus, Brady Lowe, Bryan Moffit, Dustin, Devi, Joey McCullough, Ryan Richards, Siyu, Tao, Carlos