Difference between revisions of "Run Planning Meeting Notes, Oct 11-Oct 17, 2018"

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== Wednesday, Oct 16 at 08:45 ==
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# Notes from the past 24 hours:
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#* Slow process in getting beam back to the hall
 +
#** Didn't finish empty target run until early hours of the morning
 +
#** Postponed Lubomir's run until this morning
 +
#CEBAF
 +
#* Todd's refocusing of our beam this morning
 +
#** [https://logbooks.jlab.org/entry/3610774 Reminder: Justin's figure of merit study]
 +
#Action Items
 +
#Issues
 +
#* More DAQ issues ([https://logbooks.jlab.org/entry/3610640 Owl shift summary])
 +
#Reports
 +
#* [https://logbooks.jlab.org/entry/3610276 CDC mass flow controller replaced]
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#* [https://logbooks.jlab.org/entry/3610739 Vertex position shifting]
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#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet]
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#Run Plan
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#* Beam tuning
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#* Lubomir's run with no radiator at high current
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#* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5]
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#AOB
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#* Beni next RC
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#* More RCs needed
 +
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== Tuesday, Oct 16 at 08:45 ==
 +
# Notes from the past 24 hours:
 +
#* Beam came back on swing shift. Smooth throughout the night
 +
#CEBAF
 +
#* RF recovery/general maintenance day today
 +
#** Aggressive timeline: beam back by 1pm
 +
#Action Items
 +
#Issues
 +
#Reports
 +
#* [https://logbooks.jlab.org/entry/3609904 Problematic TAGH TDC module replaced]
 +
 +
#* [https://logbooks.jlab.org/entry/3610231 Energy Monitoring]
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#* [https://logbooks.jlab.org/entry/3609746 Normalized PS rates]
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#* [https://logbooks.jlab.org/entry/3604587 PS enhancement 1], [https://logbooks.jlab.org/entry/3610227 2]
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#**[https://logbooks.jlab.org/entry/3609923 Log entry on beam convergence in Hall D]
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#* [https://logbooks.jlab.org/entry/3610202 Monitoring Report]
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#* [https://logbooks.jlab.org/entry/3609703 Rate monitoring]
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#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet]
 +
#Run Plan
 +
#*RF Recovery today. Production Running until Monday when the TAC runs are scheduled
 +
#* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5]
 +
#AOB
 +
 +
== Monday, Oct 15 at 08:45 ==
 +
# Notes from the past 24 hours:
 +
#* Good weekend of running with stable beam
 +
#CEBAF
 +
#* Spent all day and into swing on Friday to fix BLM trips. This worked, and the beam was quite stable. RF and BLM trips down
 +
#Action Items
 +
#Issues
 +
#* DAQ issues: rocCDC2, dropping to 0 rate during running with 450nA beam.
 +
#Reports
 +
#* [https://logbooks.jlab.org/entry/3609691 BCAL matching in Z]
 +
#* [https://logbooks.jlab.org/entry/3609686 Monitoring Report]
 +
#* [https://logbooks.jlab.org/entry/3609703 Rate monitoring]
 +
#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet]
 +
#Run Plan
 +
#*Beam Studies today. We are getting parasitic beam at the moment. Who needs an access? Who wants an access? How long do you need?
 +
#* Likely RF Recovery tomorrow
 +
#* TAC run with V-wire Thursday
 +
#* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5]
 +
#* Very likely that on Monday 10/22 Hall C will go down for at least 5 hours, maybe longer. Schedule a TAC run with foil?
 +
#AOB
 +
 
== Friday, Oct 12 at 08:45 ==
 
== Friday, Oct 12 at 08:45 ==
 
# Notes from the past 24 hours:
 
# Notes from the past 24 hours:
 
#* Beam back at 11:30 am, Sasha finished L1 trigger studies by 2:00 pm  
 
#* Beam back at 11:30 am, Sasha finished L1 trigger studies by 2:00 pm  
 
#* MCC suggests they recalibrate iIon chamber to reduce trip rates. Previously, it was only calibrated up to 80 nA.
 
#* MCC suggests they recalibrate iIon chamber to reduce trip rates. Previously, it was only calibrated up to 80 nA.
−
#* Sergey performed high rate DAQ tests with current up to 900 nA (want to try at 1 uA?)
+
#* Sergey performed high rate DAQ tests with current up to 900 nA
 
#* [https://logbooks.jlab.org/entry/3607777 David has new online monitoring site up]
 
#* [https://logbooks.jlab.org/entry/3607777 David has new online monitoring site up]
 
#CEBAF
 
#CEBAF
−
#*  
+
#* Almost 20 BLM trips/hour through yesterday and into the early morning. Hall C went down around 4 am and BLM trips were significantly reduced. They think there is something wrong with the beam that is being injected into the accelerator.
 +
#* Will do a retune of the accelerator around 10am today. Should take 1-2 hours.
 
#Action Items
 
#Action Items
 
#Issues
 
#Issues
 
#* Multiple alarms for BCAL downstream environmental sensors. Elton contacts Nick who reports [https://logbooks.jlab.org/entry/3607819 downstream BCAL PLC -Ethernet port quit]. Access needed.
 
#* Multiple alarms for BCAL downstream environmental sensors. Elton contacts Nick who reports [https://logbooks.jlab.org/entry/3607819 downstream BCAL PLC -Ethernet port quit]. Access needed.
 +
#* Lots of DAQ issues. Sergey had to revert the software back to a previous version
 +
#* Beam Position Issues
 +
#** [https://logbooks.jlab.org/entry/3607836 Eugene noticed beam was drifting, which coincided with drops in rates (6:00pm)]
 +
#** This continued throughout swing shift and into early morning
 +
#** [https://logbooks.jlab.org/entry/3608143 After an extended downtime, beam appears to be stable through the night]
 +
#** Hall C went down and then we got a retune where the locks in the accelerator were reset. No more drifting. [https://logbooks.jlab.org/entry/3608059 Excess rate over the template suggests that significant parts of the beam are striking the diamond frame]. [https://logbooks.jlab.org/entry/3608067 Improved coherent peak after retune].
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#** [https://logbooks.jlab.org/entry/3608141 The drifts in position do not seem to be related to the beam energy].
 +
#* [https://logbooks.jlab.org/entry/3608095 Diamond alignment issue?]
 
#Reports
 
#Reports
−
#*[https://logbooks.jlab.org/entry/3607590 Monitoring Report]
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#* [https://logbooks.jlab.org/entry/3608120 CDC pressure during Michael]
 +
#*[https://logbooks.jlab.org/entry/3608119 Monitoring Report]
 
#* [https://halldweb.jlab.org/data_monitoring/Plot_Browser.html Plot Browser]  
 
#* [https://halldweb.jlab.org/data_monitoring/Plot_Browser.html Plot Browser]  
 
#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet]
 
#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1865737386 Statistics Spreadsheet]
 
#Run Plan
 
#Run Plan
−
#*Need to schedule a TAC run
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#*TAC run next Thursday
−
#** Can we do this opportunistically?
+
#* [https://cebaf.jlab.org/files/ops/accboard/ MCC white board]
−
#** Use bleedthrough current?
+
−
#** Hall C plans to switch experiments on approximately the 22nd. This is around the time of accelerator maintenance, so they may plan to switch experiments then.
+
−
#* Hurricane Michael arriving this evening. Do we need to take any precautions?
+
−
#* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5]
+
 
#**Beam Studies Monday
 
#**Beam Studies Monday
 
#**RF Recovery Tuesday
 
#**RF Recovery Tuesday
 +
#* [https://halldweb.jlab.org/wiki/images/d/de/Fall18_week4.jpg Week 4] [https://halldweb.jlab.org/wiki/index.php/File:Fall18_week5.jpg Week 5]
  
 
== Thursday, Oct 11 at 08:45 ==
 
== Thursday, Oct 11 at 08:45 ==

Latest revision as of 08:37, 17 October 2018

Wednesday, Oct 16 at 08:45

  1. Notes from the past 24 hours:
    • Slow process in getting beam back to the hall
      • Didn't finish empty target run until early hours of the morning
      • Postponed Lubomir's run until this morning
  2. CEBAF
  3. Action Items
  4. Issues
  5. Reports
  6. Run Plan
    • Beam tuning
    • Lubomir's run with no radiator at high current
    • Week 4 Week 5
  7. AOB
    • Beni next RC
    • More RCs needed

Tuesday, Oct 16 at 08:45

  1. Notes from the past 24 hours:
    • Beam came back on swing shift. Smooth throughout the night
  2. CEBAF
    • RF recovery/general maintenance day today
      • Aggressive timeline: beam back by 1pm
  3. Action Items
  4. Issues
  5. Reports
  2. Run Plan
    • RF Recovery today. Production Running until Monday when the TAC runs are scheduled
    • Week 4 Week 5
  3. AOB

Monday, Oct 15 at 08:45

  1. Notes from the past 24 hours:
    • Good weekend of running with stable beam
  2. CEBAF
    • Spent all day and into swing on Friday to fix BLM trips. This worked, and the beam was quite stable. RF and BLM trips down
  3. Action Items
  4. Issues
    • DAQ issues: rocCDC2, dropping to 0 rate during running with 450nA beam.
  5. Reports
  6. Run Plan
    • Beam Studies today. We are getting parasitic beam at the moment. Who needs an access? Who wants an access? How long do you need?
    • Likely RF Recovery tomorrow
    • TAC run with V-wire Thursday
    • Week 4 Week 5
    • Very likely that on Monday 10/22 Hall C will go down for at least 5 hours, maybe longer. Schedule a TAC run with foil?
  7. AOB

Friday, Oct 12 at 08:45

  1. Notes from the past 24 hours:
    • Beam back at 11:30 am, Sasha finished L1 trigger studies by 2:00 pm
    • MCC suggests they recalibrate iIon chamber to reduce trip rates. Previously, it was only calibrated up to 80 nA.
    • Sergey performed high rate DAQ tests with current up to 900 nA
    • David has new online monitoring site up
  2. CEBAF
    • Almost 20 BLM trips/hour through yesterday and into the early morning. Hall C went down around 4 am and BLM trips were significantly reduced. They think there is something wrong with the beam that is being injected into the accelerator.
    • Will do a retune of the accelerator around 10am today. Should take 1-2 hours.
  3. Action Items
  4. Issues
  5. Reports
  6. Run Plan

Thursday, Oct 11 at 08:45

  1. Notes from the past 24 hours:
    • Beam issues most of swing (7hrs to complete amorphous run) and owl shift (~1hr of beam in total).
  2. CEBAF
    • 5th pass separator failed during swing shift and remained problematic into the beginning of owl. Beam back at 3:20am.
    • PSS drop in the machine at 3:30 am. No beam until 6am.
  3. Action Items
  4. Issues
  5. Reports
  6. Run Plan
    • Need to schedule a TAC run
      • Can we do this opportunistically?
      • Use bleedthrough current?
      • Hall C plans to switch experiments on approximately the 22nd. This is around the time of accelerator maintenance, so they may plan to switch experiments then.
    • Hurricane Michael arriving this evening. Do we need to take any precautions?
    • Week 4 Week 5
      • Beam Studies Monday
      • RF Recovery Tuesday
  7. AOB
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