Octorber 29nd 2021

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Revision as of 09:31, 29 October 2021 by Camsonne (Talk | contribs)

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  • Updates
    • HCal
    • coincidence trigger
    • Bigbite Shower
    • Hodoscope
    • GRINCH
    • CDet
    • GEM Bigbite INFN
    • GEM INFN clean room
    • GEM UVA clean room
    • Helicity
    • Beamline/scalers
    • HV


  • On-going tasks
    • EPICS / start End of run logging script (Bob 99% ) - just need to add configuration - will make a test configuration - need to make sure we have all variables - and variables to add at begining / end of run and during the run (EPICS 131 event - need to add to analyzer ) - Provokar gave scripts for some variables to be added : HV for all detectors - issue with ET - Paul checking if there are scripts submitting event as Beginning Of Run event - might be reason for hang-ups
    • script check MPD sync ( Ben , Andrew 20%) - code to unpack information already written - need run with those data - timestamp need some work
    • sync check scripts other modules F1, 1190, FADC ( Andrew , Alex, Mark 20%)
    • (90%) reference channel to all crates - need HCal and Shower + RF - need to add RF to HCAL - 3 cables - in hodoscope crate - if shower FADC available can add

separate - need RC box for shower and hodo if possible

    • (new) Trigger latch TS to TDC ( Alex,Mark 0%) try F1 ? or add vetroc gem crate - or hodoscope ) - trigger bank has latch
    • event type decoding in analyzer - ( mention at analysis meeting ) - need to check with Ole ?
    • MPD retiming with V1495 ( done ) - timestamp issue still need to be implemented - in datastream but might still have issues - can fix with firwmare update - can use TI timestamp to check with other - MPD timestamp not always reliable and misaligned at the start - might be best to test in EEL first - timestamp - event counter working - couple of hours - updating MPD, V1495 and readout list - might need 4 hours - can induce change in latency -
    • need to look at MPD timestamp make sure they all agree
      • Possible new tasks
        • rcdb
        • check latency with DiagGui ( needs firmware and code work - low priority )
        • User event inserted at each split with timestamp, spectrometer information - should discuss with andre
        • mysql database
        • autoanalysis at end of run -
        • setup laptop for CH blujeans and Slack
        • hodoscope calibration
        • HCAL calibration
    • GEN RP
      • setup on halladev ( done )
      • setup VTP - Bryan working on setting computers and VTP - Ben will bring 2nd VTP


  • Unresolved issue
    • (need to test)FADC bad channel - FADC replaced but problem could not be reproduce - need to test more ( on going - low priority ) - FADC in test lab - DAQ setup - need to feed signal
    • (still there)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
    • HV can put documentation for other non EPICS control
    • (50%) near limit for FADC crates - Shower window was divided by 2 - HCal windows - could do 150 ns - Move FADCs to top crate ?
    • (new, sort of) HV hodoscope channels turning off
    • (cannot be fixed - been that way forever) Raster X1 vs Raster X2 anticorrelation
    • (new) EPICS insertion : working better but still hangs for long runs
    • (new) ROC19 busy fiber : issue became worse - MPD23 disabled - firmware fixes to be implemented
    • (new) ER1 hangup - related to ET issue -
    • (new) TDC errors - just one run though - https://logbooks.jlab.org/ent

ry/3923168**(new) sbsvtp1 not detecting MPD fiber

    • (new)HCAL flag file crashing ROCs : file too long ?
    • (new) Raster saturation ( fixed with 20 db attenuator )
    • (New) No clear signal in GRINCH
    • HCAL fifo overflow https://logbooks.jlab.org/entry/3925327 - will check HCal people