July 16th 2021

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  • Updates
    • HCAL
      • monitor trigger, overlapping clusters, 1 cable to FADC
      • HCAL cable tray layout : ~300 cables from PMT to front end
    • Bigbite shower
      • same plan as HCal
      • waiting for cable trays to be installed between set of racks
      • waiting for cable trays on ground
      • railing on Bigbite platform
      • 2 FADCs have issues : one repaired ( resoldered lemo ) will bring second one chan 7 bad
      • Lecroy HV was flakey : Arun will switch to another crate rpi18 with Provokar
    • Bigbite hodoscope
      • still focusing on software
    • GRINCH
      • Developing an offline monitoring script for shifters to use, working on event display, ADC calibration script
    • LHRS
      • cabling A1 aeorogel
      • improvement in software, usual
      • coincidence trigger setup for HRS
    • Beamline
      • spot ++ on github and working, build tool using cmake
      • David on site August 24th, will start
    • Helicity
      • got ring buffer working
      • work on seed calculator to put helicity in data stream
      • could try soon to setup system in HRS
      • new helicity decoding board : some delays in getting it
    • GEM INFN
      • set up SSP readout on the GEMs in the INFN test lab. We will be able to test some raw channel readout every N events to check things are working ok when we run common mode
    • GEM UVA


  • Discussion scalers
    • we have barely enough scalers , could buy more 3500 $ -
    • option to use VETROC as scalers - done for Compton DAQ
    • number of SIS scalers : 4 + 4 from LHRS + 6 olders scalers (CAEN+1151) + Hall C might have 3820 ( 2 ) + G0 scalers ( with large width more than 10 ns )
    • would like to buy 4 SIS
    • do we need scaler event by event ?
    • helicity scalers scheme same
    • Bigbite scalers : 64 channels will get
    • 1 for
  • Rack layout

RackGEMGrinch.png

  • On-going tasks
    • Network setup
    • Scaler crate setup
    • 3 rd GEM VXS crate install router moved up
    • detector accounts setup
    • boot VME controllers
    • detector cabling
    • new MPD production
    • MPD VTP readout
    • Bigbite - HCal trigger setup
    • TS setup
    • Beamline crate setup
    • HCAL cabling
  • Outstanding issues
    • 2 bad FADCs Bigbite
    • SD delay -
    • need to adjust for HCAL transit time with different PMTs
    • status of cosmics paddles
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