October 18, 2017 online meeting minutes

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present: Sergey, Cole, Volker, Rafo, Nick, Valery, Ben, Stepan, Latifa

  • CLAS12 Trigger


Remaining work in CLAS12 trigger system before Dec 4, 2017 run

1. Hadrware:

  • 17 VTP boards assembly and testing - Ben Raydo, Jeff Wilson
  • 17 VTP boards installation (10-DC, 6-FTOF, 1-CND) - Ben Raydo, Sergey Boyarinov
  • 17 VTP boards connection (Ethernet, serial, fibers) - Chris Cuevas, Armen Stepanyan, Mark Taylor


2. Firmware:

  • ECAL: change from inner to total in cluster search - Sergey, Ben
  • FT - Ben
  • FTOF - Sergey, Ben
  • stage2, stage 3 - Ben


3. Simulation:

  • GEMC fadc mode1 digitization - Rafo
  • stage 1 (except FT) - Sergey
  • stage 1 (FT) - Andrea
  • stage2, stage 3 - Rafo
  • validation 1 (cosmic vs C++) - Sergey, Rafo
  • validation 2 (GEMC vs C++ vs CLARA) - detector groups ? ( Cole, ..)
  • geometrical match tables - Andrea


4. Configuration:

  • trigger config files, configuration manual - Ben, Sergey
  • DAQ configurations - Sergey, Ben


5. Monitoring:

  • trigger results in data stream - Sergey
  • histogramming, messaging, EPICS - ?


6. Cosmic commissioning (with plan) - Ben, Sergey, Cole, ...


7. Beam commissioning plan (starting configuration, parameters to be changed etc) - Valery, ...


Progress since last meeting:

  • 12 VTP boards installed in Hall (Ben, Sergey): 10 in DC and 2 in FTOF sectors 5 and 6. Five more VTPs needs repair - in progress. Cabling under way, should be mostly ready in few days, but new fiber trunk installation may take 2 weeks - not enough ports on SF (Chris, Mark, Armen). All VTP installation may take couple of weeks because of needed repairs.
  • HTCC from GEMC is included into trigger validation (Rafo, Sergey), we have now PCAL, ECAL and HTCC, FT (Andrea) and FTOF(Sergey) are in progress.
  • Andrea sent first version of FTOF-PCAL geometry table, PCAL-ECAL to go

Ben's presentation on trigger stage2/3

stage 2 timing diagram and FT/HODO

to do

  • monitoring screens - epics_server-URGENT
  • GUI - Valery will provide layout
  • evio banks decoding - Gagik, Andrey Kim
  • beam commissioning plan - Valery
  • next week turn everything installed on
  • HTCC trigger will be modified: 36bit mask -> 48bit mask