[Halla_running] [New Logentry] RC Update Dec 1 2021

[xbai at jlab.org]

Logentry Text:
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<h1><span id="Accelerator_and_Hall_Status" class="mw-headline">Accelerator and Hall Status</span></h1><ul><li>We are currently in controlled access, probably through the whole day shift. Should be able to back to beam permit in Swing shift.</li><li>Subsystems fixed a series issues during the controlled access, see subsystem updates.</li><li>10 uA on LD2, and 12 uA on LD2 GEM/Tracking study runs were finished in last Swing shift</li><li>RC for next week: Eric King</li></ul><div><h1><span id="Pending_and_New_issues" class="mw-headline">Pending and New issues</span></h1><ul><li><span class="mw-headline">GEM Layer INFN J0 common mode drifting higher, see loghttps://logbooks.jlab.org/entry/3953952</span></li></ul><h1><span id="Resolved_Issues" class="mw-headline">Resolved Issues</span></h1><ul><li>The noisy APV on one UV layer has been resolved, see a log by Sean: <a class="external free" href="https://logbooks.jlab.org/entry/3953885" rel="nofollow">https://logbooks.jlab.org/entr!
 y/3953885</a></li><li>DAC GUI for setting up BBCal Trigger Threshold was fixed, the rpi controller for this has been configured as remote controllable</li><li>HCAL HV miscommunication issue was fixed</li><li>Power cycled GEM HV Crate in an escorted access in last Swing shift, this resolved GEM HV Monitor frozen issue</li><li>Script to accurately calculate beam charge is close to finish by Bob and David</li></ul><div><h1><span id="Subsystem_Updates" class="mw-headline">Subsystem Updates</span></h1><ol><li>HCAL<ol><li>Raspberry PI controller for HV is fixed, now it is remote controllable;</li><li>Updated online Panguin plots, it is working in the counting house for shift crew.</li><li>DAC GUI for setting BBCal trigger threshold is fixed</li><li>work on new timing resolution analysis on-going</li></ol></li><li>BBCal:<ol><li>Moved rpi controller to remote controllable power switch</li><li>Still need to do a cosmic run under SBS-OFF BB-ON configuration. Since needs BB-ON, so nee!
 d Hall in Beam Permit to do it</li></ol></li><li>Timing hodosc!
 ope:<ol><li>Things are OK, happy with 50k replay results</li></ol></li><li>Grinch:</li><li>GEMS:<ol><li>Full replay for higher beam current run is on-going</li><li>The cause for INFN J0 layer common mode drifting higher issue is not clear. LV, patch panel all looks fine<ol><li>The drift of common mode to higher value may lead to failed online zero suppression, fixable in offline</li><li>Common mode drift in the order of 40 - 50 ADC, still within our online zero suppression cut threshold: 100 ADC</li><li>Not necessary to retake pedestal too often, pedestal is stable</li></ol></li><li>New GEM pedestal run is already done</li><li>From Sean: two problematic APVs on UVa GEM layers have been fixed. Confirmed one more HV sector died on one UV GEM chamber</li></ol></li><li>Beamline:<ol><li>Updated scaler GUI, Mya Plot</li><li>A very rough calibration for scaler variables is done</li><li>A detailed plan to accurately do the calibration is developed, will be performed after the meeti!
 ng</li></ol></li><li>DAQ:<ol><li>Smooth DAQ</li><li>Prepared a new CODA config, which includes saving raw data to both /adaqeb1 and /adaqeb2</li></ol></li><li>Replay analysis:<ol><li>Full replay for higher current run on GEMs are on-going.</li></ol></li></ol><p> </p><p><span class="mw-headline"><br></span></p></div><p> </p><p> </p><p><span class="mw-headline"><br></span></p></div><p> </p>

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