Difference between revisions of "Run Planning Meeting Notes, November 18 - November 24, 2021"

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=Wednesday, November 24=
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#Last 24h:
 +
#* Took ~0.8B triggers on full LD2 target + ~78M triggers on empty target ([https://logbooks.jlab.org/entry/3948794 some DAQ plots]
 +
 +
#Issues:
 +
#* None
 +
#Plan:
 +
#* Target change to carbon and reestablish running conditions for production on carbon
 +
#Analysis update
 +
 +
=Tuesday, November 23=
 +
#Last 24h:
 +
#* Took ~0.8B triggers on LD2 before solenoid dump + ~1.4B after
 +
#* Took some PS background data with TPOL converter retracted while solenoid was ramping
 +
#Issues:
 +
#* Solenoid dump at 11:30 am
 +
#** Traced to defective Convectron panel meter [https://logbooks.jlab.org/entry/3948244]
 +
#** Started ramp back up at 14:33, finished ramp at 23:04
 +
#* RCDB web interface froze again at about midnight
 +
#Plan:
 +
#* Continue production at 140 nA on diamond
 +
#* Switch to empty target during the day in preparation for target change on Wednesday
 +
#* Ramp down solenoid at midnight Wednesday morning
 +
# Analysis update
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 +
=Monday, November 22=
 +
#Last 72h:
 +
#* Recorded ~2.5B triggers on LHe
 +
#** Took some data (~100M) with COMCAL inserted into the beam: [https://logbooks.jlab.org/entry/3947216 Trigger/DAQ/Data rates]
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#** Took ~39M (production) triggers on LHe at 50 nA: [https://logbooks.jlab.org/entry/3947226 Trigger/DAQ/Data rates]
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#** Took ~33M triggers on LHe empty target:  [https://logbooks.jlab.org/entry/3947340 Trigger/DAQ/Data rates]
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#* Switched to Liquid deuterium during swing shift on Saturday: [https://logbooks.jlab.org/entry/3947358 Target cooling]
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#** [https://logbooks.jlab.org/entry/3947422 Trigger/DAQ/Data rates at 140 nA]: 68 kHz w/ 96% live time
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#** Took ~5B triggers (192M AMO): [https://halldweb.jlab.org/data_monitoring/run_statistics/RunPeriod-2021-11/index.html]
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#Issues:
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#* Saturday: [https://logbooks.jlab.org/entry/3947097 5C11 Y drift/beam energy drift]
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#* Sunday:[https://logbooks.jlab.org/entry/3947488 AC x,y lock positions had x<->y interchanged, now  X=0.0 and Y=-0.1]
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#* [https://logbooks.jlab.org/entry/3947881 RCDB web interface freezing at midnight ?]
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#* [https://logbooks.jlab.org/entry/3947958 BCAL humidity levels high in upstream modules]
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#Plan:
 +
#* Continue production at 140 nA on diamond
 +
# Analysis update
 +
 +
=Friday, November 19=
 +
#Last 24h:
 +
#* Repair work for RF separator did not end up impacting taking beam -- yay!
 +
#* Added ~2B triggers: [https://halldweb.jlab.org/data_monitoring/run_statistics/RunPeriod-2021-11/index.html]
 +
#Issues:
 +
#* A couple of minor issues:
 +
#** DAQ computer acting weird, but this did not impact actual data taking
 +
#** Alcohol bubbler too dark to see: [https://logbooks.jlab.org/entry/3946251]
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# [https://halldweb.jlab.org/wiki/index.php/SRC/CT_Run_Plan Plan:]
 +
#* Continue production at 150nA on diamond
 +
#* Saturday day:  Low current + empty target?
 +
#* Saturday swing:  switch to liquid deuterium
 +
# Analysis update
 +
 
=Thursday November 18=
 
=Thursday November 18=
 
#Last 24h:
 
#Last 24h:
 +
#* ~1.4 B triggers (250M AMO): [https://halldweb.jlab.org/data_monitoring/run_statistics/RunPeriod-2021-11/index.html]
 +
#* Down from ~8:45 am -> 9:30 pm due to 4th pass RF separator problem
 +
#** Repair plan:  down at ~10 am for ~30 minutes, then acc will decide if full system needs to be down for repair for longer time
 +
#** Some discussion regarding using magnetic separation for 1 hall running if down more than 30 minutes
 +
#Issues:
 +
#* writing on tape?
 +
#* High temperature of locked-up FCAL bases? [https://logbooks.jlab.org/entry/3945260]
 +
#* Shift crew will take over servicing FCAL base lock ups. [https://halldweb.jlab.org/hdops/wiki/index.php/Forward_Calorimeter_Shift#FCAL_Base_lockup wiki instructions]
 +
# [https://halldweb.jlab.org/wiki/index.php/SRC/CT_Run_Plan Plan:]
 +
#* Continue production at 150nA on diamond
 +
# Analysis update

Latest revision as of 07:59, 24 November 2021

Wednesday, November 24

  1. Last 24h:
    • Took ~0.8B triggers on full LD2 target + ~78M triggers on empty target (some DAQ plots
  1. Issues:
    • None
  2. Plan:
    • Target change to carbon and reestablish running conditions for production on carbon
  3. Analysis update

Tuesday, November 23

  1. Last 24h:
    • Took ~0.8B triggers on LD2 before solenoid dump + ~1.4B after
    • Took some PS background data with TPOL converter retracted while solenoid was ramping
  2. Issues:
    • Solenoid dump at 11:30 am
      • Traced to defective Convectron panel meter [1]
      • Started ramp back up at 14:33, finished ramp at 23:04
    • RCDB web interface froze again at about midnight
  3. Plan:
    • Continue production at 140 nA on diamond
    • Switch to empty target during the day in preparation for target change on Wednesday
    • Ramp down solenoid at midnight Wednesday morning
  4. Analysis update

Monday, November 22

  1. Last 72h:
  2. Issues:
  3. Plan:
    • Continue production at 140 nA on diamond
  4. Analysis update

Friday, November 19

  1. Last 24h:
    • Repair work for RF separator did not end up impacting taking beam -- yay!
    • Added ~2B triggers: [3]
  2. Issues:
    • A couple of minor issues:
      • DAQ computer acting weird, but this did not impact actual data taking
      • Alcohol bubbler too dark to see: [4]
  3. Plan:
    • Continue production at 150nA on diamond
    • Saturday day: Low current + empty target?
    • Saturday swing: switch to liquid deuterium
  4. Analysis update

Thursday November 18

  1. Last 24h:
    • ~1.4 B triggers (250M AMO): [5]
    • Down from ~8:45 am -> 9:30 pm due to 4th pass RF separator problem
      • Repair plan: down at ~10 am for ~30 minutes, then acc will decide if full system needs to be down for repair for longer time
      • Some discussion regarding using magnetic separation for 1 hall running if down more than 30 minutes
  2. Issues:
    • writing on tape?
    • High temperature of locked-up FCAL bases? [6]
    • Shift crew will take over servicing FCAL base lock ups. wiki instructions
  3. Plan:
    • Continue production at 150nA on diamond
  4. Analysis update
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