Revision as of 08:12, 28 September 2021

<- Back to Run Coordination Meetings:Summer2021

Tuesday, September 28

1. In last 24 hours:
   • No beam

1. Issues:
   • Follow-up on possible SC issue https://logbooks.jlab.org/entry/3913352
   • Bleedthrough
2. Plan:
   • RadCon will sweep HallD around 1 pm
   • Be with 50nA and both chambers turn on (two shifts)

Monday, September 27

1. In last 72 hours:
   • Swing summary:https://logbooks.jlab.org/entry/3912624
   • Day summary: https://logbooks.jlab.org/entry/3912503
   • Early Riser summary: https://logbooks.jlab.org/entry/3912341
   • Owl summary: https://logbooks.jlab.org/entry/3912249
   • Swing summary: https://logbooks.jlab.org/entry/3912060
   • Sunday 8am to Monday 8am summary: no beam
     • FDC1 Cell1 efficiency went up https://logbooks.jlab.org/entry/3913057 (Lubomir)
     • New TAGH HV https://logbooks.jlab.org/entry/3913029 (Sasha)
     • FCAL pi0 calibration divided into 3 period: Summer 2020 HV, Summer 2020 HV - 6V, and Fall 2021 HV (214 HV adjusted) https://logbooks.jlab.org/entry/3913166 (ig)
   • Saturday 8am to Sunday 8am summary:
     • No beam from 10am to 7pm
     • Beni & Richard debugged TAGM
     • Check radiation level https://logbooks.jlab.org/entry/3912624
     • HARP scan https://logbooks.jlab.org/entry/3912630 https://logbooks.jlab.org/entry/3912624
     • Beam was off, asked to tune, FSD trip -> no beam until Monday
   • Friday am to Saturday 8am summary:
     • Tagger NMR https://logbooks.jlab.org/entry/3912006 (Tim)
     • z position of Be target https://logbooks.jlab.org/entry/3911950 (Simon)
     • Remove absorber https://logbooks.jlab.org/entry/3911915 (Steven/PrimEx-eta)
     • FCAL HV scan https://logbooks.jlab.org/entry/3912077 https://logbooks.jlab.org/entry/3912060
     • Beam back around 3 am (Saturday and no beam during most of Friday)
     • Check radiation level https://logbooks.jlab.org/entry/3912307 https://logbooks.jlab.org/entry/3912195
     • HARP scan https://logbooks.jlab.org/entry/3912325 https://logbooks.jlab.org/entry/3912325 https://logbooks.jlab.org/entry/3912325
2. Issues
   • TAGM wrongly cabling https://logbooks.jlab.org/entry/3912516 / https://logbooks.jlab.org/entry/3912822 (Beni/Richard)
   • No Beam https://logbooks.jlab.org/entry/3912495 https://logbooks.jlab.org/entry/3912567 (Jay, PD)
   • TAGH discriminator scalers in EPICS froze https://logbooks.jlab.org/entry/3912490 (Hovanes)
   • Possible issue with SC https://logbooks.jlab.org/entry/3912992 (Sean)
   • Bleedthrough
3. Plan
   • Maintenance
     • FCAL https://logbooks.jlab.org/entry/3912930 (Rebecca/Malte/Mark)
     • Swap one MPGD prototype under test with a new one (Kondo/Lubomir)

Friday, September 24

1. In last 24 hours:
   • Early Riser summary: https://logbooks.jlab.org/entry/3911691
   • Owl summary: https://logbooks.jlab.org/entry/3911625
   • Swing summary: https://logbooks.jlab.org/entry/3911415
   • Day summary: https://logbooks.jlab.org/entry/3911095
   • Lubomir straight track studies
   • Richard looked at the missing tagm channel issues https://logbooks.jlab.org/entry/3911033
   • Rapid access between 1pm and 4pm
     • FCAL bases changed (Mark) https://logbooks.jlab.org/entry/3911303
     • FCAL FADC changed (Sasha) https://logbooks.jlab.org/entry/3911510
     • Profiler removed and surveyed by RadCon (Tim)
     • Be target survey/align (Chris) https://logbooks.jlab.org/entry/3911226
   • Rapid access at 6pm to check FCAL FADCs
   • FCAL HV tuning (ig) https://logbooks.jlab.org/entry/3911624
2. Issues
   • VME crate D2-2-TOP (ROCFCAL1) rebooting periodically (Malte) https://logbooks.jlab.org/entry/3911318
   • Beam halo alarm (Hovanes) https://logbooks.jlab.org/entry/3911427
   • LED DOWN trigger bit missing (Elton) https://logbooks.jlab.org/entry/3911427
   • Roc issues preventing the DAQ to start
   • Beam (eg MCC has a problem with the PS, there will be no beam for some time)
   • Bleed through (Bill)
3. Plan
   • Compton with Be target at low intensity

Thursday, September 23

1. In last 24 hours:
   • Be target, 10-4 Radiator, ~11M triggers.
   • Early Riser summary: https://logbooks.jlab.org/entry/3910318 (4am to 10am),
   • Owl summary: https://logbooks.jlab.org/entry/3910862 (10pm to 4am)
   • Swing summary: https://logbooks.jlab.org/entry/3910670 (4pm-10am)
   • Day summary: https://logbooks.jlab.org/entry/3910458 (10am to 4pm),
   • FCAL pi0 calibration and HV tuning started yesterday at 6 am, https://logbooks.jlab.org/entry/3910786
     • With PMT HVs, gains, and pedestals of run 73065
     • Then, we subtracted 6V to all PMT HV resulting in a reduction of roughly 5% on all gains
   • Sergey made a rapid access to the experimental hall to power cycle NIM crate
   • Beni changed the TOF HV a couple of times eg https://logbooks.jlab.org/entry/3910611
   • Sergey did a BCAL pedestal runs,
   • Sean time calibration https://logbooks.jlab.org/entry/3910464, https://logbooks.jlab.org/entry/3910484
   • Sasha adjusted tagh HV
2. Issues
   • Beni did look at the bleedthrough issue by analyzing timing for different run condition https://logbooks.jlab.org/entry/3910680, https://logbooks.jlab.org/entry/3910800
   • After entry to the experimental MCC struggle for almost one hour to send us beam
   • Sean time calibration pointed to tagm issues that Richard will address
   • FCAL issues, fADC died screwing the FCAL pi0 calibration run see report diphoton invariant mass distribution per ring https://halldweb.jlab.org/primexd/phase2/fcal2021_method0_period_2-g1/
   • Full monitoring system (resolved ): back online. Rootspy, twice a day email feed.
   • Hall Camera expected to come back online.
3. Plan for the day
   • tagm studies by Richard
   • FDC straight track studies by Lubomir