Revision as of 09:39, 11 October 2021

Tuesday, October 12

1. In last 24 hours:
   • • Early Riser:
     • Owl summary:
     • Swing summary:
     • Day summary:
2. Issues:
3. Plan:

Monday, October 11

1. In last 72 hours:
   • Friday:
     • Early Riser: https://logbooks.jlab.org/entry/3920548
     • Owl summary: https://logbooks.jlab.org/entry/3920473
     • Swing summary: https://logbooks.jlab.org/entry/3920317
     • Day summary: https://logbooks.jlab.org/entry/3920160
     • Beam stopped at 10 am and was out for 4 hours for an agreed accelerator maintenance
     • PS bkg https://logbooks.jlab.org/entry/3920174 (Tim)
     • Solenoid test ramp https://logbooks.jlab.org/entry/3920171 (Tim)
     • FCAL PMT HV changed for three blocks https://logbooks.jlab.org/entry/3920195 (ig)
     • Radiation monitored https://logbooks.jlab.org/entry/3920317 & HARP scan https://logbooks.jlab.org/entry/3920420
   • Saturday:
     • Early Riser: https://logbooks.jlab.org/entry/3921075
     • Owl summary: https://logbooks.jlab.org/entry/3920899
     • Swing summary: https://logbooks.jlab.org/entry/3920728
     • Day summary: https://logbooks.jlab.org/entry/3920633
     • Rates evolution https://logbooks.jlab.org/entry/3920582 (Alexandre D.)
     • Vacuum "Burp" on coil 4 is beginning to subside https://logbooks.jlab.org/entry/3920779 https://logbooks.jlab.org/entry/3920777 (Tim/Mark)
     • Hall C off leads to >2 mm excursion upstream https://logbooks.jlab.org/entry/3920887 (Mark)
     • Difference in beam - rf timing distribution depending on trigger type https://logbooks.jlab.org/entry/3921020 (Drew)
   • Sunday:
     • Early Riser: https://logbooks.jlab.org/entry/3921867
     • Owl summary: https://logbooks.jlab.org/entry/3921710
     • Swing summary: https://logbooks.jlab.org/entry/3921392
     • Day summary: https://logbooks.jlab.org/entry/3921282
     • Recovered locked-up FCAL base https://logbooks.jlab.org/entry/3921539 (Malte)
     • Rates evolution https://logbooks.jlab.org/entry/3921950 (Alexandre D.)
2. Issues:
   • Bleedthrough
   • FCAL bases changed https://logbooks.jlab.org/entry/3920207 (Mark/Rebecca/Malte)
   • Problem with RCDB host https://logbooks.jlab.org/entry/3920651 (Elton)
   • DAQ CCAL alarm https://logbooks.jlab.org/entry/3920676
   • Solenoid
     • Alarm https://logbooks.jlab.org/entry/3920696 (Elton/Keith)
     • Temperature https://logbooks.jlab.org/entry/3921857 (Hovanes)
     • General diagnostic https://logbooks.jlab.org/entry/3921941 (Tim)
   • rootstpy problem due to connection to ccdb solved by using squilte (David)
3. Plan:
   • Reference plots needs to be updated
   • No beam between 4pm and 9pm (tentavily) <= Hall A is not ready yet
   • Ramp up solenoid at 4pm
   • Once ramp up and beam back calibration (1.2 shift) of
     • CDC
     • FDC
   • Empty or target fill will be decided at 4 pm by the PIs

Friday, October 8

1. In last 24 hours:
   • Early Riser: https://logbooks.jlab.org/entry/3920059
   • Owl summary: https://logbooks.jlab.org/entry/3919945
   • Swing summary: https://logbooks.jlab.org/entry/3919677
   • Day summary: https://logbooks.jlab.org/entry/3919504
   • Helicity configuration changed for HallA https://logbooks.jlab.org/entry/3919498, no beam for several hours in HallC/B/D
   • Updated Documentation on myaPlot https://logbooks.jlab.org/entry/3919509 (Elton)
   • 1.5B triggers at 200 nA
   • Production rate scan https://logbooks.jlab.org/entry/3919648 (Sasha)
   • CCAL LEDs, 200 nA and 50 nA https://logbooks.jlab.org/entry/3919571 (Sasha)
   • BCAL run, 81418, with TPOL converter retracted, 200 nA & PRIMEX/PHYSICS cfg https://logbooks.jlab.org/entry/3919569 (Elton/Mark)
2. Issues:
   • Bleedthrough https://logbooks.jlab.org/entry/3919567 (Beni)
   • FCAL suspicious channels https://logbooks.jlab.org/entry/3919561
3. Plan:
   • 100 nA (2 shifts)
   • Turn the magnet on and ramp to low current (50A)
   • Hall A will be back online Monday morning
   • Tuesday Beam study / RF recovery will probably be postponed to a later day

Thursday, October 7

1. In last 24 hours:
   • Early Riser: https://logbooks.jlab.org/entry/3919395
   • Owl summary: https://logbooks.jlab.org/entry/3919305
   • Swing summary: https://logbooks.jlab.org/entry/3919178
   • Day summary: https://logbooks.jlab.org/entry/3918973
   • Production run started at 20:58
   • 0.21B triggers with hot & cold Helium empty target cell
   • 0.7B triggers with He target full
   • Target cooled down and filled with liquid He4
   • HallD cavity BPM calibration, https://logbooks.jlab.org/entry/3919129
   • Gas bottle changed, https://logbooks.jlab.org/entry/3919183 (Elton)
2. Issues:
   • Solenoid alarm (Amy)
   • Target software, https://logbooks.jlab.org/entry/3919168 (Carlin)
   • Target, LH2 temperature interlock not changed, https://logbooks.jlab.org/entry/3918975 (Elton)
   • LED skim, https://logbooks.jlab.org/entry/3918989
   • Camera https://logbooks.jlab.org/entry/3918788
   • Bleedthrough Different Beam structure after target change (Tuesday evening)
3. Plan:
   • Special run for BCAL, TPOL retracted, 5 mn beam at 200 nA, normal DAQ cfg
   • 200 nA CDC & FDC turn off (3 shifts)
   • 100 nA CDC & FDC turn off (2 shifts)
   • MCC will run the Moller at helicity flip rate for HallB which might disrupt HallD beam
   • If Hall A is back online today (unlikely most probably tomorrow)
     • Check radiation
     • HARP scan
     • Bleedthrough run with 10 kHz random pulser, HallD laser turn off, and no beam for 40mn