October 1st 2021

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  • Updates
    • HCal
      • ROC16 - ROC17 - seems better with fixing the busy
      • taking cosmics and looking at LED - 1 LED run and 1 cosmics - most PMT calibrated - some have very long tail ( not light leak - seems linked to PMT - need to investigate and replace or move to edge of acceptance
    • Bigbite Shower
      • one issue with 1 preshower threshold : FADC pedestals needed to be adjusted - Ben has some software
      • still running cosmics - calibration almost done
      • want to set up the FADC scalers
    • Hodoscope
      • 3 night HV tripped randomly - last night HV did not trip, EPICS server was disabled yesterday
      • need take scans with FADC
    • GRINCH
      • was trying to take gain matching data
      • HV was tripping with LED
      • stable now , pulser showing on scaler
      • continuing with data collection
      • TS not working right now - need TS to get LED trigger - will try to fix
      • good statistics LED run - can fit most channels - need continue data taking with different HV
    • CDet
      • issue : 1 run with very few events recorded - total number of triggers - but no events in ADC / TDC - take data at beginning but stops - after power cycling worked fine - take screen shot of event builder and ROC and put in HALOG
    • LHRS
      • pretty much ready - remote power cycling fixed - latency set
      • scripts start and end of run : run by hand - still working on tying with CODA
      • will work with Maria to cable RF
    • GEM Bigbite INFN
      • taking data every night
      • Sean working on FIR coefficient
      • working on 4th layer of Bigbite : was working but HV issue , will be tested - aluminized mylar added
      • techs working on BigBite water hose - might need to work on evening
    • UVA clean room
      • finished setting up HV for GEN RP
      • Gas system done - gas flowing
      • Thir updated all MPD firmware
      • Anu working on setting up network - can set up VTP after
      • host moved to hall A dev : need to PXE boot from the counting house
    • GEn RP chamber : DAQ setup using Hall A system
    • Helicity
      • adding config file to be able to enable / disable helicity scaler
      • some changes for sbsvme29 readout and will start setting up readout list
      • still 120 Hz delayed - should switch to 30 Hz in time when convenient
    • Beamline/scalers
      • cables pulled from bunker to beamline rack : mapping / cabling posted on halog
      • copy of BCM in helicity board
      • plugging the helicity signals in
      • David has couple of spares - that could be used for RF
      • could check with Simona : she is using a beam nose patch panel for some moller signals ( 8 )
    • HV : restart all GUI - will kill all previous GUI - might have cross-talk between detector


  • On going tasks
    • Cable to weldment ( David / Heidi 100%? )
    • cabling scaler/beamline crate ( David , Bob 100%)
    • HRS to TS and timing ( Bob, Maria 50% ) - programmed high threshold for other detectors -
    • software for FADC pedestals : Bryan will give to Brad
    • EPICS / start End of run logging script (Alex, Bob 90%) - just need to add configuration - will make a test configuration
    • script check MPD sync ( Ben , Andrew 20%) - code to unpack information already written - need run with those data - timestamp need some work
    • RF (Bob ,Maria ) - located RF prescaler and signal - need to send to HRS and SBS weldment - need add F1 for RF and will send to HCAL spare F1 channels
    • sync check scripts ( Andrew , Alex 0%)
    • EDTM at least 1 Hz for helicity ( Scott, Arun, Mark ? ) Just need to check it is working : look for 10 Hz EDTM - need to put in TDC too - need help set up library in hodoscope crate - will plug it back and use Scott GUI
    • Hodoscope v1190 clock ( Alex , Mark , Ralph) - done
      • check if calibration is needed after switch - to do but should not be much - check with Ben if he as software -
    • Full configration all crates ( Alex, Bryan - 52.3% ) - can attach process to components - just finish CODA config
    • need setup screens for online display and analysis, Hall A tools on big screen - can make a map file - (Bryan , done )
    • data rate test with new computer and 3 VTPs ( Alex, Bryan ) -
    • test GEM zero supression ( Sean, Holly )- done
    • FIR
    • GEM cosmics ( Sean, Holly ) 70 %
    • Shower cosmics (Arun, Provokar ) 90 % ?
    • HCAL cosmics (Scott) - investigating the issue - most channel working - ~ 80%
    • GRINCH cosmics ( Bradley ) - need 3 more runs x 8 - 4 FADC - only 64 out of 550 -
    • Hodoscope cosmics ( Ralph ) - calibration TDC and nino thresholds : looks pretty good - just need to look at FADC - upper third, 2 left - 60%
    • DAQ documentation ( Alex, Rachel ,Don) ( 10 % resets, need starting CODA / troubleshoooting )
    • suggest taking all detectors cosmics every night - took a few runs !
    • add scaler crate to full config ( Alex, Steve )
    • coincidence trigger (done ) - need fine tune inputs at TS
    • BB CAL and HCAL at TS - delayed after coincidence (Mark, done ) - need the RC box for FADC ref channel - need delay single triggers (Mark , done 15 ns ) - add GRINCH LED (done #5) -
    • reference channel to all crates - need HCal and Shower + RF
    • add FADCs for shower sum and HODO ( David / Mark /Bryan : done )
    • add FADCs for GRINCH (Bryan/Alex) - done
    • read threshold for discriminator from with RPi be Ellen (done) (noise issue was fixed), need give code to Steve ( done ) - could add in logentry or wiki for adding in other scripts ( check with Steve ) - Scott wanted to add those readback in GUI
    • scaler gating with TS (Alex, Steve) done ? , need include code in readout list - Steve looking at adding to TS list (done)
    • MPD crates on hareboot6 (done) - can be power cycled remotely
    • put UVA GEM LV on reboot switch (done)
    • (new) Trigger latch TS to TDC ( try F1 ? or add vetroc gem crate )
    • event type decoding in analyzer - ( mention at analysing )
    • MPD retiming (?) with V1495
  • Issues
    • transceiver issues : HCAL TI might be suspicious ROC 17 ( Scott replaced two transceiver but need to test might be bad connection )
      • 1 out of 4 HRS run with TS, if reboot TS usually fixes it -
    • network issue : one short fiber replaced, will try to put in protective tube
    • LHRS TI : working now
    • GEM with TS hanging - real MPD out of sync - fixed with new firmware - (fixed : 5.2 KHz bufferlevel 5)
    • Shower FADC bad channel - FADC replaced but problem could not be reproduce - need to test more ( on going - low priority )
    • HCAL FADC bad channel - repaired by Bill - jumper wiggled loose - if no pedestal - could be this jumper (fixed)
    • HCAL ROC16 fiber - will double check if fiber 5 enabled - use slave5 - added additionnal fiber for ROC16 - fixed by cleaning
    • warning PEB ROC - Bryan checking with Dave - might incorrect flag - not sure why - but data still in sync since only happens - still happening - not sure if it is an issue
    • Shower F1 issue at high rate - need to check with OT#2 - check at sync event implemented - DMA error might come from multiple pulsing - switched to 1190 -
    • Helicity scaler readout : issues working with same DMA configuration - scalers doing regular VME
    • need copy of L1A for helicity scaler - can send TI output ? counting L1A between helicity event to track sync -done
    • Full config still hanging on LHRS and HCAL busy : no hanging buffer level 2 - need more testing high rate
  • use HV EPICS : type go_hv on aslow on adaqsc , need people to check if it works and if mapping is correct
    • control system studio try self update and NFS down
    • EPICS server need to be started at boot, Ole and Bryan - ?
    • can put documentation for other control
    • (new) ROC17 F1 data - data left at sync event - seems fixed after fixing busy cabling
    • (new) hodoscope no data in some events - seems fixed after putting busy from distribution board
    • (new) HCAL ROC17 crash / shutdown
    • (new) V1190 stuck at prestart - went away after switch to external clock - maybe bad connection
    • (new) setup network port for UVA chamber testing in EEL 125
    • (new) deadtime ROC17 HCAL
    • (new) deadtime ROC5 hodoscope
  • Hall was cleaned - fibers left and table left
  • Helicity board : 2 avalaible
  • F1 : need to test high rate
  • could increase threshold - window width 1000 ns maybe - need to be optimized - 40 ns - no remote threshold right now - on camac - might be able to control

288 channels = 18 NIM modules

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