Difference between revisions of "Run Planning Meeting Notes, Feb 1-Feb 7, 2018"

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<- Back to [[Run Coordination Meetings:Fall2017 Spring2018 Run]]
 
<- Back to [[Run Coordination Meetings:Fall2017 Spring2018 Run]]
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== Wednesday, February 7 ==
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# Notes from the previous 24 hours:
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#* Accelerator beam studies productive to clean up orbits for Hall C: reduced beam losses, but RF issues at high current.
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#* End Station Refrigerator (ESR) trip lost time for other halls: still bringing up Hall C
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#* [https://halldweb.jlab.org/data_monitoring/run_statistics/RunPeriod-2018-01/index.html Solid production data] over swing and owl shifts: 2.7 B in last 24 hours
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#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1635471172 Spreadsheet: number of triggers]
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#* [https://logbooks.jlab.org/entry/3528591 Low level monitoring]
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# Issues:
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#* [https://logbooks.jlab.org/entry/3528086 TAGM board fixed], opportunistic access needs ~2 hours (including RadCon)
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#* [https://logbooks.jlab.org/entry/3528324 Edge drifts]
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#* [https://logbooks.jlab.org/entry/3528049 FCAL issues]
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#* [https://logbooks.jlab.org/entry/3528511 Time shifts coincide with crate reboot?]
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#* Muon chamber status?
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# Today's run plan [https://calendar.google.com/calendar/embed?src=halldops%40gmail.com&src=503o985nbesua43smquc510o8k%40group.calendar.google.com&ctz=America/New_York  Google Calendar]:
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#* Harp scan
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#* Long mode run (30 min)
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#* Low intensity run: 100 nA on 1e-4 Al. radiator (2 hr)
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#* Production running
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# Reports (?):
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# Standing issues:
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#* [https://logbooks.jlab.org/entry/3527379 Rate evolution]: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
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#* TPOL analysis status?
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== Tuesday, February 6 ==
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# Notes from the previous 24 hours:
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#* Accelerator and hall access finished by end of day shift.  Several issues with accelerator during beam restoration
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#* Took harp scans after restoration and [https://logbooks.jlab.org/entry/3527838 convergence was ok].  Started production data at 2 am, with intermittent beam.
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#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1635471172 Spreadsheet: number of triggers]
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#* [https://logbooks.jlab.org/entry/3527960 Low level monitoring]
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# Reports from yesterday's access:
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#* [https://logbooks.jlab.org/entry/3527502 Re-installation of the muon chamber]
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#* [https://logbooks.jlab.org/entry/3527478 FCAL base maintenance] and [https://logbooks.jlab.org/entry/3527603 followup]
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#* [https://logbooks.jlab.org/entry/3527484 TPOL sector investigation]
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#* [https://logbooks.jlab.org/entry/3527485 TAGM light leak test, etc.], [https://logbooks.jlab.org/entry/3527620 board swap], and [https://logbooks.jlab.org/entry/3527880 Vbias adjustment]
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#* [https://logbooks.jlab.org/entry/3527498 CDC gas leak] and [https://logbooks.jlab.org/entry/3527973 flow increase]
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#* [https://logbooks.jlab.org/entry/3527491 Profiler radiator changed (Pb -> Al)]
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# Issues:
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#* AD00 [https://logbooks.jlab.org/entry/3527994 still wandering], but effect on energy is very small.
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# Today's run plan [https://halldweb.jlab.org/hdops/wiki/index.php/Main_Page Google Calendar]:
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#* Beam studies to address beam losses for high current halls
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#* Production running
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# Reports:
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#* [https://logbooks.jlab.org/entry/3525956 DAQ test at 300 nA]
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# Standing issues:
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#* [https://logbooks.jlab.org/entry/3527379 Rate evolution]: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
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#* TPOL analysis status?
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== Monday, February 5 ==
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# Notes from the previous 24 hours:
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#* South Linac down for ~5 hrs due to CHL issue
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#* Beam unstable and Y position drifting overnight
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#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1635471172 Spreadsheet: number of triggers]
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#* [https://logbooks.jlab.org/entry/3527325 Low level monitoring]
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# Possible access today (time unknown, maybe afternoon):
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#* Re-installation of the muon chamber (at least 2 hours with 3+ people)
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#* FCAL base maintenance (1-2 hours for base replacement + 1-2 hours for each channel tests)
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#* TPOL sector 3 investigation
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#* TAGM light leak test for columns 82-84 (2+ hours)
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#* CDC bubbler evaluation and re-fill
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#* Profiler radiator changed (Pb -> Al?)
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#* Walkthrough for Ahmed
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# Issues:
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#* [https://logbooks.jlab.org/entry/3526966 Radiator ID in RCDB?]
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#* [https://logbooks.jlab.org/entry/3527061 Edge drifts with Y position]
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#* Process for changes to production configuration (discussion):
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#** All changes should have an entry in the shift log when they occur
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#** For any change that effects the production data written to tape should
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#*** Contact run coordinator for notification and decide on time for change
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# Today's run plan [https://halldweb.jlab.org/hdops/wiki/index.php/Main_Page Google Calendar]:
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#* Hall Access (unknown duration)
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#* Production running
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# Reports:
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#* [https://logbooks.jlab.org/entry/3526423 PS enhancements after retune] and [https://logbooks.jlab.org/entry/3526981 CBSA polarization vs run number]
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#* [https://logbooks.jlab.org/entry/3525828 Empty target analysis]
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#* [https://logbooks.jlab.org/entry/3525907 rho asymmetry update]
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#* [https://logbooks.jlab.org/entry/3525956 DAQ test at 300 nA]
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# Standing issues:
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#* [https://logbooks.jlab.org/entry/3527379 Rate evolution]: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
 +
#* TPOL analysis status?
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== Sunday, February 4 ==
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# Notes from the previous 48 hours:
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#* Friday day shift: L1 trigger studies (~2 hrs) for min-bias trigger and high rate DAQ test (~1.5 hrs)
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#* Saturday AM: South Linac down for ~4 hrs
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#* After South Linac recovers, [https://logbooks.jlab.org/entry/3526478 harp scans] show beam convergence at collimator looks good.
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#* [https://docs.google.com/spreadsheets/d/1NffTc4-S5PbTMSuH_pp7ZYsGRH4JC_WSVo770_iJYt0/edit#gid=1635471172 Spreadsheet: number of triggers]: ~4 B triggers in last 2 days.
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#* [https://logbooks.jlab.org/entry/3526901 Low level monitoring]
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# Tomorrow's potential access (7 am Monday):
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#* Re-installation of the muon chamber
 +
#* FCAL base maintenance
 +
#* TPOL sector 3 investigation
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#* CDC bubbler evaluation and re-fill
 +
#* Walkthrough for Ahmed
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# Issues:
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#* [https://logbooks.jlab.org/entry/3525840 CDC-FDC pressure dip followup]
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#* [https://logbooks.jlab.org/entry/3525816 AD00 ~4 minute oscillation]: appears to be "fixed"
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#* [https://logbooks.jlab.org/entry/3526580 5C11B Y position still wandering at times]
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#* Approval process for changes to production configuration?:
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#** [https://logbooks.jlab.org/entry/3526016 CDC readout thresholds]
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#** [https://logbooks.jlab.org/entry/3526402 TAGM trigger thresholds]
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# Today's run plan [https://halldweb.jlab.org/hdops/wiki/index.php/Main_Page Google Calendar]:
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#* Production running
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# Reports:
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#* [https://logbooks.jlab.org/entry/3526423 PS enhancements after retune]
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#* [https://logbooks.jlab.org/entry/3525828 Empty target analysis]
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#* [https://logbooks.jlab.org/entry/3525907 rho asymmetry update]
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#* [https://logbooks.jlab.org/entry/3525956 DAQ test at 300 nA]
 +
# Standing issues:
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#* [https://logbooks.jlab.org/entry/3524060 Rate evolution]: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
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#* TPOL analysis status?
  
 
== Friday, February 2 ==
 
== Friday, February 2 ==

Latest revision as of 09:43, 7 February 2018

<- Back to Run Coordination Meetings:Fall2017 Spring2018 Run

Wednesday, February 7

  1. Notes from the previous 24 hours:
  2. Issues:
  3. Today's run plan Google Calendar:
    • Harp scan
    • Long mode run (30 min)
    • Low intensity run: 100 nA on 1e-4 Al. radiator (2 hr)
    • Production running
  4. Reports (?):
  5. Standing issues:
    • Rate evolution: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
    • TPOL analysis status?

Tuesday, February 6

  1. Notes from the previous 24 hours:
  2. Reports from yesterday's access:
  3. Issues:
  4. Today's run plan Google Calendar:
    • Beam studies to address beam losses for high current halls
    • Production running
  5. Reports:
  6. Standing issues:
    • Rate evolution: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
    • TPOL analysis status?

Monday, February 5

  1. Notes from the previous 24 hours:
  2. Possible access today (time unknown, maybe afternoon):
    • Re-installation of the muon chamber (at least 2 hours with 3+ people)
    • FCAL base maintenance (1-2 hours for base replacement + 1-2 hours for each channel tests)
    • TPOL sector 3 investigation
    • TAGM light leak test for columns 82-84 (2+ hours)
    • CDC bubbler evaluation and re-fill
    • Profiler radiator changed (Pb -> Al?)
    • Walkthrough for Ahmed
  3. Issues:
    • Radiator ID in RCDB?
    • Edge drifts with Y position
    • Process for changes to production configuration (discussion):
      • All changes should have an entry in the shift log when they occur
      • For any change that effects the production data written to tape should
        • Contact run coordinator for notification and decide on time for change
  4. Today's run plan Google Calendar:
    • Hall Access (unknown duration)
    • Production running
  5. Reports:
  6. Standing issues:
    • Rate evolution: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
    • TPOL analysis status?

Sunday, February 4

  1. Notes from the previous 48 hours:
    • Friday day shift: L1 trigger studies (~2 hrs) for min-bias trigger and high rate DAQ test (~1.5 hrs)
    • Saturday AM: South Linac down for ~4 hrs
    • After South Linac recovers, harp scans show beam convergence at collimator looks good.
    • Spreadsheet: number of triggers: ~4 B triggers in last 2 days.
    • Low level monitoring
  2. Tomorrow's potential access (7 am Monday):
    • Re-installation of the muon chamber
    • FCAL base maintenance
    • TPOL sector 3 investigation
    • CDC bubbler evaluation and re-fill
    • Walkthrough for Ahmed
  3. Issues:
  4. Today's run plan Google Calendar:
    • Production running
  5. Reports:
  6. Standing issues:
    • Rate evolution: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
    • TPOL analysis status?

Friday, February 2

  1. Notes from the previous 24 hours:
    • Harp scans around 2 pm found the beam was significantly over-focused in y. Around the same time MCC decided to retune the beam.
    • After beam tuning in the afternoon, harp scans around 8 pm showed convergence at the collimator is better
    • 12.6 hours of CW beam. ABU: 10.9 hrs (3.2+1.7+6.0), BANU: 1.7 hrs (0.3+0.7+0.7), BNA: 11.3 hrs (4.5+5.6+1.2)
    • Spreadsheet: number of triggers.
    • Low level monitoring
  2. Issues:
  3. Today's run plan Google Calendar:
    • Production running
    • 10 am: Min-bias trigger setup (Sasha)
    • 11:30 am: High intensity test (Sergey)
  4. Reports:
  5. Standing issues:
    • Rate evolution: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
    • Polarization status?
  6. Beam Time Accounting (BTA) discussion:
    • 3 possible conditions:
      • ABU: Available Beam Used
      • BANU: Beam Available [to the Hall] but Not Used [by the Hall]
      • BNA: Beam Not Available [to the Hall]
    • Automated procedure in MCC for populating BTA have not been very reliable
    • Proposal from Mark D:
      • Shift leader should record the integrated time that we request no beam (for example changing the radiator or other experiment downtime). When submitting the BTA form, the shift leader should check that the BANU and BNA numbers are correct (ie. BANU does not exceed the integrated time we request no beam). If they are not correct, the shift leader should move all the time that is listed under BANU into the BNA column unless they specifically requested no beam from MCC.

Thursday, February 1

  1. Notes from the previous 24 hours:
    • After empty target run, beam intermittent. Trouble setting up V-wire TAC run, due to lock on Active Collimator not providing consistent TAC rate.
    • 8 PM start production TAC run with lock on Beam Profiler. TAC rate initially at ~200 kHz, but dropped to 100 kHz overnight.
    • 5:30 AM stopped the TAC run and switch to production: target filled, beamline back in production configuration and production run started.
    • 16.1 hours of CW beam. ABU: 14.4 hrs (4.9+3.5+6.0), BANU: 1.7 hrs (0.1+0.8+0.8)
    • Spreadsheet: number of triggers.
    • Low level monitoring
  2. Issues:
  3. Run plan for this week:
    • Low intensity runs planned for tonight: what is the status of min-bias triggers?
  4. Today's run plan:
    • At 9 AM (or after run production run 41172):
      • Harp scans by MCC and Hall D (Hovanes on shift)
    • Production running the rest of the day
  5. Reports:
  6. Standing issues:
    • Rate evolution: Work ongoing to compare rho yields to PS flux before and after "step" in PS rate.
    • Polarization status? Came up at MCC meeting, Eugene suggested to report next week.