Difference between revisions of "Run Planning Meeting Notes, October 14 - October 20, 2021"

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=Wednesday, October 20=
 +
# Last 24:
 +
#* taking data till 5:20pm - 400M triggers
 +
#* At 5:20pm SL dropped due to LCW/power problem; NL shut down to prevent tripping; tagger magnet ramp down https://logbooks.jlab.org/entry/3928353
 +
#* tagger magnet restored - https://logbooks.jlab.org/entry/3928399
 +
#* empty target reconstructed - https://logbooks.jlab.org/entry/3928026
 +
#* timing calibration https://logbooks.jlab.org/entry/3928409
 +
# Remaining issues:
 +
#* tagger NMR not scanning (communication with accel. w.r.t. tagger magnet)
 +
#* BCAL noise at 10 o'clock
 +
#* Bleedthrough
 +
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 +
#* plan for day/swing on Wednesday - maintenance
 +
#** position survey CCAL - DOESN'T require RadCon survey
 +
#** correct shielding  at the left (downstream) PS arm
 +
#** do measurements with magnetometer
 +
#** FCAL work
 +
#** troubleshoot the faulty FDC chiller
 +
#* when the beam is back continue production at 200nA
 +
 +
=Tuesday, October 19=
 +
# Last 24:
 +
#* Target filled 9am-12pm - https://logbooks.jlab.org/entry/3927473
 +
#* harp scan results https://logbooks.jlab.org/entry/3927666
 +
#* 3pm-9:30pm  very productive
 +
#* starting 9:30pm bumpy night - beam down re-tuning cavities, tuning Hall A, Hall B bleedthrough
 +
#* ~300M events on full target
 +
#* Work on FCAL - https://logbooks.jlab.org/entry/3927498
 +
#* power switch on FDC chiller re-installed - https://logbooks.jlab.org/entry/3927527
 +
#* BCAL 10 o'clock noise might be related to left arm shielding - https://logbooks.jlab.org/entry/3927768
 +
#* FDC efficiency - https://logbooks.jlab.org/entry/3927560
 +
# Remaining issues:
 +
#* tagger NMR not scanning (communication with accel. w.r.t. tagger magnet)
 +
#* BCAL noise at 10 o'clock
 +
#* improve communications with the accel. w.r.t. the tagger magnet
 +
#* Bleedthrough
 +
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 +
#* production 200nA
 +
#* plan for day/swing on Wednesday - maintenance
 +
#** position survey CCAL - DOESN'T require RadCon survey
 +
#** correct shielding  at the left (downstream) PS arm
 +
#** do measurements with magnetometer
 +
#** ...
 +
 +
=Monday, October 18=
 +
# Over the weekend:
 +
#* Target emptied Friday 5pm - https://logbooks.jlab.org/entry/3925563
 +
#* Long downtime (flooding in accel.) started 5pm on Friday, beam came for an hour in the evening and was restored 6am Saturday.
 +
#* Since then very productive:  1.25B events on empty target
 +
#* Some noise in BCAL at 10 o'clock - https://logbooks.jlab.org/entry/3927356
 +
#* two-peak structure TDC's(of all detectors) - RF https://logbooks.jlab.org/entry/3926223 solved after restarting
 +
#* TAGM TDC calibration problem - https://logbooks.jlab.org/entry/3926306 solved after several runs
 +
#* NMR probe stop scanning https://logbooks.jlab.org/entry/3926647 https://logbooks.jlab.org/entry/3926650 https://logbooks.jlab.org/entry/3927378
 +
#* last bleedthrough run taken with low pulser rate https://logbooks.jlab.org/entry/3925916
 +
#* FDC wire thresholds optimized (lowered) - https://logbooks.jlab.org/entry/3925360
 +
#* online monitoring files not copied to CUE workdisk - https://logbooks.jlab.org/entry/3926767
 +
#* archiving trigger rate - solved by David https://logbooks.jlab.org/entry/3925225
 +
# Remaining issues:
 +
#* tagger NMR not scanning
 +
#* BCAL noise at 10 o'clock
 +
#* Bleedthrough
 +
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 +
#* 9am pass change - start filling the target
 +
#** install the FDC chiller power switch - https://logbooks.jlab.org/entry/3925381
 +
#** FCAL work
 +
#** after beam comes - harp scans
 +
#* plan for day/swing on Wednesday - maintenance
 +
#** position survey CCAL - requires RadCon survey prior
 +
#** install additional shielding at the left (downstream) PS arm
 +
#** do measurements with magnetometer
 +
#** ...
 +
 +
=Friday, October 15=
 +
# In last 24 hours:
 +
#* power of infiniband switch tripped (one strip cord)- causing 4h UED -https://logbooks.jlab.org/entry/3924903 https://logbooks.jlab.org/entry/3925176
 +
#** group disk not mounted https://logbooks.jlab.org/entry/3925185
 +
#** trigger rate not archived https://logbooks.jlab.org/entry/3925225
 +
#* FDC chiller replaced https://logbooks.jlab.org/entry/3924510
 +
#* beacon bulb replaced - took 2h
 +
#* FDC hot wires https://logbooks.jlab.org/entry/3924538 - no more noise but higher discr. thresholds (need 30 min to optimize the thresholds)
 +
#* 6h downtime - NL cold box + other things
 +
#* harp scans - https://logbooks.jlab.org/entry/3924829  https://logbooks.jlab.org/entry/3924830  https://logbooks.jlab.org/entry/3924845 https://logbooks.jlab.org/entry/3924851
 +
#* ~400M triggers for the last 24h
 +
#* pulser left at 2kHz after the downtime https://logbooks.jlab.org/entry/3924927 - all data after that till 23:30 with 2kHz pulser - <b> don't forget to restore pulser to 100Hz once you are done with your test </b>
 +
#* more rootspy nodes https://logbooks.jlab.org/entry/3924610 (David)
 +
# Remaining issues:
 +
#* fix remaining problems on gluon machines (trigger rate not archived https://logbooks.jlab.org/entry/3925225)
 +
#* Bleedthrough
 +
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 +
#* run till 5pm with full target, then with empty over the weekend - <b> inform target group (Chris) when emptying/filling the target </b>
 +
#* pass change on Monday
 +
#* day/swing on Wednesday - maintenance
 +
 +
 
=Thursday, October 14=
 
=Thursday, October 14=
 
# In last 24 hours:
 
# In last 24 hours:
Line 19: Line 113:
 
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 
#* 2 more shifts with 200 nA and target filled with He then wait for decision from Primex 4 pm meeting.
 
#* 2 more shifts with 200 nA and target filled with He then wait for decision from Primex 4 pm meeting.
−
 
−
=Friday, October 15=
 
−
# In last 24 hours:
 
−
#* power of infiniband switch tripped (one strip cord)- causing 4h UED -https://logbooks.jlab.org/entry/3924903 https://logbooks.jlab.org/entry/3925176
 
−
#** group disk not mounted https://logbooks.jlab.org/entry/3925185
 
−
#** trigger rate not archived https://logbooks.jlab.org/entry/3925225
 
−
#* FDC chiller replaced https://logbooks.jlab.org/entry/3924510
 
−
#* beacon bulb replaced - took 2h
 
−
#* FDC hot wires https://logbooks.jlab.org/entry/3924538 - no more noise but higher discr. thresholds
 
−
#* 6h downtime - NL cold box + other things
 
−
#* harp scans - https://logbooks.jlab.org/entry/3924829  https://logbooks.jlab.org/entry/3924830  https://logbooks.jlab.org/entry/3924845 https://logbooks.jlab.org/entry/3924851
 
−
#* ~400M triggers for the last 24h
 
−
#* pulser left at 2kHz after the downtime https://logbooks.jlab.org/entry/3924927 - all data after that till 23:30 with 2kHz pulser
 
−
#* more rootspy nodes https://logbooks.jlab.org/entry/3924610 (David)
 
−
# Remaining issues:
 
−
#* fix remaining problems on gluon machines
 
−
#* Bleedthrough
 
−
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:]
 
−
#* run till 5pm with full target, then with empty over the weekend - inform target group (Chris) when emptying/filling the target
 

Latest revision as of 07:34, 20 October 2021

Wednesday, October 20

  1. Last 24:
  2. Remaining issues:
    • tagger NMR not scanning (communication with accel. w.r.t. tagger magnet)
    • BCAL noise at 10 o'clock
    • Bleedthrough
  3. Plan:
    • plan for day/swing on Wednesday - maintenance
      • position survey CCAL - DOESN'T require RadCon survey
      • correct shielding at the left (downstream) PS arm
      • do measurements with magnetometer
      • FCAL work
      • troubleshoot the faulty FDC chiller
    • when the beam is back continue production at 200nA

Tuesday, October 19

  1. Last 24:
  2. Remaining issues:
    • tagger NMR not scanning (communication with accel. w.r.t. tagger magnet)
    • BCAL noise at 10 o'clock
    • improve communications with the accel. w.r.t. the tagger magnet
    • Bleedthrough
  3. Plan:
    • production 200nA
    • plan for day/swing on Wednesday - maintenance
      • position survey CCAL - DOESN'T require RadCon survey
      • correct shielding at the left (downstream) PS arm
      • do measurements with magnetometer
      • ...

Monday, October 18

  1. Over the weekend:
  2. Remaining issues:
    • tagger NMR not scanning
    • BCAL noise at 10 o'clock
    • Bleedthrough
  3. Plan:
    • 9am pass change - start filling the target
    • plan for day/swing on Wednesday - maintenance
      • position survey CCAL - requires RadCon survey prior
      • install additional shielding at the left (downstream) PS arm
      • do measurements with magnetometer
      • ...

Friday, October 15

  1. In last 24 hours:
  2. Remaining issues:
  3. Plan:
    • run till 5pm with full target, then with empty over the weekend - inform target group (Chris) when emptying/filling the target
    • pass change on Monday
    • day/swing on Wednesday - maintenance


Thursday, October 14

  1. In last 24 hours:
  2. Remaining issues:
  3. Plan:
    • 2 more shifts with 200 nA and target filled with He then wait for decision from Primex 4 pm meeting.
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