Difference between revisions of "Run Planning Meeting Notes, June 16 - June 22, 2022"

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↑ Back to [[Run Coordination Meetings:Summer2022]]
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Meeting are via ZoomGov: [https://jlab-org.zoomgov.com/j/1601990060?pwd=TUtwTGszMFg5bjhwdC9nU0IvREUzZz09 connect] (Meeting ID: 160 199 0060 / Passcode 8394)
 
Meeting are via ZoomGov: [https://jlab-org.zoomgov.com/j/1601990060?pwd=TUtwTGszMFg5bjhwdC9nU0IvREUzZz09 connect] (Meeting ID: 160 199 0060 / Passcode 8394)
  
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[https://halldweb.jlab.org/online/whiteboard/ Hall D counting room white board]
 
[https://halldweb.jlab.org/online/whiteboard/ Hall D counting room white board]
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[https://docs.google.com/spreadsheets/d/1sdluzy7p5vnlhw9AWJHBrYbXKTBet45o4den4zWX9dc/edit#gid=1855021251 Spreadsheet with list of runs]
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=Wednesday June 22=
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#Last 24h:
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#*Beam returned at 8pm but multiple problems were encountered. Back in production by just after 2am.
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#*[https://logbooks.jlab.org/entry/4005374 CTOF trigger should be aligned now]
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#*DIRC barbox alarm. [https://logbooks.jlab.org/entry/4005408 Work done on sensor to prevent alarms.] More alarms overnight . [https://logbooks.jlab.org/entry/4005628 DIRC bar box pressure alarms disabled]
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#*[https://logbooks.jlab.org/entry/4005474 Tagger NMR lost comm again]
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#*[https://logbooks.jlab.org/entry/4005504 2 FCAL bases changed]
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#*[https://logbooks.jlab.org/entry/4005509 Tagger HV crate replaced] to hopefully solve issues with 24 tagger channel causing problems.
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#*F1 TDC replaced in tagger. It is version 33 of firmware while all the rest are version 32.  This is not a problem, ver 33 has 2 more diagnostic registers (these could be useful if there are event building issues one day but we can just update then if so.)  Apparently has not solved DAQ live time issue.
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#*[https://logbooks.jlab.org/entry/4005586 Helicity signal added to DAQ]
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#*[https://logbooks.jlab.org/entry/4005626 PERP issues were due to corrupted goniometer setting] Hovanes Fixed
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#*[https://logbooks.jlab.org/entry/4005635 Ion chambers adjusted]  Neutron radiation levels in the Tagger Hall by coincidence were confounding.
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#*[https://logbooks.jlab.org/entry/4005729 PERP orientation spectrum looked terrible.] Resolved with electron beam tuning. Apparently issue was caused by running Hall D oprbit locks without Hall D beam present, leading to the beam walking off.
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#*[https://logbooks.jlab.org/entry/4005683 U1-10-TOP MPOD crate has problems leading to LV issues on ST and PS.]
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#*TAC or Trigger work
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#Shift Summaries
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#*[https://logbooks.jlab.org/entry/4005389 Day Shift][https://logbooks.jlab.org/entry/4005557 Swing Shift][https://logbooks.jlab.org/entry/4005648 Owl Shift][https://logbooks.jlab.org/entry/4005735 Early Riser]
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#Reports
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#*[https://logbooks.jlab.org/entry/4005383 Beam energy monitoring.]
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#Issues
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#* Tagger NMR
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#* DIRC sensor
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#* DAQ livetime
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#* Beam position stability
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#* U1-10-TOP MPOD crate
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#Plans
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#*AC locks parameter tuning
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#*PS and TAGH HV scans
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#*Accelerator maintenance day Thursday. Lab wide power shedding event from 2pm to 3pm. Beam down at 6:30am.  South Linac in restricted access by 8-9am. 
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#*Wed evening: The target is out already. Sasha will set up the straight track trigger, then start the TAC run at whatever beam current was chosen earlier.
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#Commissioning steps temporarily postponed:
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#*Flux optimization/Act .Col. calibration
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#*Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.
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=Tuesday June 21=
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#Last 24h:
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#* Relatively good beam.
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#*[https://logbooks.jlab.org/entry/4005082 DIRC barbox alarm][https://logbooks.jlab.org/entry/4005314 DP fluctuation.]
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#*[https://logbooks.jlab.org/entry/4005074 CTOF readout threshold changed in horrible cludge.][https://logbooks.jlab.org/entry/4005306 Worked!]
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#*[https://logbooks.jlab.org/entry/4005118 Worked on AC position lock][https://logbooks.jlab.org/entry/4005119 Mysterious behaviour]
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#*TAC setup was begun. Progress made but the TAC run was postponed until today.
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#*[https://logbooks.jlab.org/entry/4005201 Could not run in PERP] Getting ion chamber trips. [https://logbooks.jlab.org/entry/4005263][https://logbooks.jlab.org/entry/4005271]
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#Reports
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#*[https://logbooks.jlab.org/entry/4005209 Lead frame position okay, not going to be moved again.]
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#*[https://logbooks.jlab.org/entry/4004338 New diamond spot analysis tool available]
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#Issues
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#*[https://logbooks.jlab.org/entry/4005315 CTOF FP trigger timing change in wrong direction]
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#*24 tagger channels off.  Tagger access tuesday to look at this.
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#Plans
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#*RF recovery Tuesday and machine tuning for Hall C high current.
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#**Change F1TDCs in Tagger that may be causing live time issues.
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#**Install helicity fibers in Tagger
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#**Change HV crate in tagger that is causing issues.
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#*Accelerator maintenance day Thursday
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#Commissioning steps temporarily postponed:
 +
#*Flux optimization/Act .Col. calibration
 +
#*PS and TAGH HV scans
 +
#*Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.
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=Monday June 20=
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#Last 24h:
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#*[https://logbooks.jlab.org/entry/4004689 CTOF trigger time adjusted]
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#*[https://logbooks.jlab.org/entry/4004707 TOF signal size.]  To compare with 400 threshold.
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#*[https://logbooks.jlab.org/entry/4004718 Changes to AC locks.]  Need to evaluate the impact. [https://logbooks.jlab.org/entry/4004792]
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#*TAC setup work was done but ran out of time for actual TAC run.  That could be done today on Swing.
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#* Beam returned at 8:30 pm.  Smooth production since then.
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#Reports
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#*[https://logbooks.jlab.org/entry/4004801 Lack of TDC hits for CTOF]
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#*[https://logbooks.jlab.org/entry/4004338 New diamond spot analysis tool available]
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#Issues
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#*[https://logbooks.jlab.org/entry/4004511 Beam position is unstable]
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#*DAQ live time fluctuations. [https://logbooks.jlab.org/entry/4004956]  Tagger access tuesday to look at this.
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#*24 tagger channels off.  Tagger access tuesday to look at this.
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#Plans
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#*RF recovery Tuesday and machine tuning for Hall C high current.
 +
#**Change F1TDCs in Tagger that may be causing live time issues.
 +
#**Install helicity fibers in Tagger
 +
#**Change HV crate in tagger that is causing issues.
 +
#*Accelerator maintenance day Thursday
 +
#Commissioning steps temporarily postponed:
 +
#*Flux optimization/Act .Col. calibration
 +
#*PS and TAGH HV scans
 +
#*Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.
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=Sunday June 19=
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#Last 24h:
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#*[https://logbooks.jlab.org/entry/4004378 TOF trigger included in data stream.]  Total rate 60kHz, 400 Mpbs, ~97% live time.  CTOF prescale factor 5
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#*Beam profiler was inserted to study position with redundant monitors.  [https://logbooks.jlab.org/entry/4004511 Beam position is unstable]
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#*Smooth running overnight. [https://logbooks.jlab.org/entry/4004502 Coherent peak shape and energy looks good.]
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#Reports
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#*From PD-RC 8:45 meeting.
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#**Jay will look into our beam stability issues.
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#*[https://logbooks.jlab.org/entry/4004671 Trigger timing]
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#*[https://logbooks.jlab.org/entry/4004338 New diamond spot analysis tool available]
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#Issues
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#*[https://logbooks.jlab.org/entry/4004511 Beam position is unstable]
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#*DAQ live time dropped twice. [https://logbooks.jlab.org/entry/4004407][https://logbooks.jlab.org/entry/4004595]
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#*24 tagger channels off.
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#Plans
 +
#*Flux optimization/Act .Col. calibration
 +
#*RF recovery Tuesday
 +
#*Accelerator maintenance day Thursday
 +
#Commissioning steps temporarily postponed:
 +
#*PS and TAGH HV scans
 +
#*Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.
 +
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=Saturday June 18=
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#Last 24h:
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#* [https://logbooks.jlab.org/entry/4003805 Live time now being written to epics archiver.]
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#*[https://logbooks.jlab.org/entry/4003882 Downstream beam pipe was moved.]  Opportunistic.
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#*[https://logbooks.jlab.org/entry/4003929 Tagger NMR lost lock]
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#*[https://logbooks.jlab.org/entry/4003987 Sasha addeed TOF to trigger][https://logbooks.jlab.org/entry/4003979 Rates were very high.]  Pre-scale by 2 and thresholds raised but timing not complete yet.
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#*[https://logbooks.jlab.org/entry/4004013 Hovanes attempted AC scan but beam was not locking]
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#*Ran quasi production for NPP and maybe CPP.
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#Reports
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#*From PD-RC 8:45 meeting.
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#** Generally everyone is somewhat unhappy. :-(
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#*[https://logbooks.jlab.org/entry/4003932 CPP dEdx issues.]  CDC is likely fine.  Its gain and hit efficiency (hits found/hits measured) are normal.  But tracking is missing the start counter, & the target isn't in the usual spot.
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#Issues
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#*24 tagger channels off.
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#Plans
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#*Flux optimization/Act .Col. calibration
 +
#*Trigger development for TOF trigger
 +
#*RF recovery Tuesday
 +
#*Accelerator maintenance day Thursday
 +
#Commissioning steps temporarily postponed:
 +
#*PS and TAGH HV scans
 +
#*Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.
  
  
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#* Beam returned at 11 pm.
 
#* Beam returned at 11 pm.
 
#*Harp scans performed [https://logbooks.jlab.org/entry/4003556][https://logbooks.jlab.org/entry/4003571][https://logbooks.jlab.org/entry/4003586]
 
#*Harp scans performed [https://logbooks.jlab.org/entry/4003556][https://logbooks.jlab.org/entry/4003571][https://logbooks.jlab.org/entry/4003586]
#*[https://logbooks.jlab.org/entry/4003600 Beam envelope looks good]
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#*[https://logbooks.jlab.org/entry/4003600 Beam envelope looks good] Accelerator have asked us to put these projections in the elog in future.
 
#*No CH edge observed. Hovanes helped to get diamond aligned overnight. [https://logbooks.jlab.org/entry/4003627]
 
#*No CH edge observed. Hovanes helped to get diamond aligned overnight. [https://logbooks.jlab.org/entry/4003627]
 
#*Ran quasi production for NPP. Pressure change CDC alarm twice.  
 
#*Ran quasi production for NPP. Pressure change CDC alarm twice.  
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#**Hall C not getting high current, more work is needed
 
#**Hall C not getting high current, more work is needed
 
#**Hall B will need a spin dance
 
#**Hall B will need a spin dance
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#*Low rates in TOF [https://logbooks.jlab.org/entry/4003634] and low current in CDC [https://logbooks.jlab.org/entry/4003635]
 
#*[https://docs.google.com/spreadsheets/d/1sdluzy7p5vnlhw9AWJHBrYbXKTBet45o4den4zWX9dc/edit#gid=1855021251 Spreadsheet with list of runs]
 
#*[https://docs.google.com/spreadsheets/d/1sdluzy7p5vnlhw9AWJHBrYbXKTBet45o4den4zWX9dc/edit#gid=1855021251 Spreadsheet with list of runs]
 
#Issues
 
#Issues

Latest revision as of 14:54, 22 June 2022

↑ Back to Run Coordination Meetings:Summer2022

Meeting are via ZoomGov: connect (Meeting ID: 160 199 0060 / Passcode 8394)

MCC whiteboard

Hall D counting room white board

Spreadsheet with list of runs


Wednesday June 22

  1. Last 24h:
  2. Shift Summaries
  3. Reports
  4. Issues
    • Tagger NMR
    • DIRC sensor
    • DAQ livetime
    • Beam position stability
    • U1-10-TOP MPOD crate
  5. Plans
    • AC locks parameter tuning
    • PS and TAGH HV scans
    • Accelerator maintenance day Thursday. Lab wide power shedding event from 2pm to 3pm. Beam down at 6:30am. South Linac in restricted access by 8-9am.
    • Wed evening: The target is out already. Sasha will set up the straight track trigger, then start the TAC run at whatever beam current was chosen earlier.
  6. Commissioning steps temporarily postponed:
    • Flux optimization/Act .Col. calibration
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.

Tuesday June 21

  1. Last 24h:
  2. Reports
  3. Issues
  4. Plans
    • RF recovery Tuesday and machine tuning for Hall C high current.
      • Change F1TDCs in Tagger that may be causing live time issues.
      • Install helicity fibers in Tagger
      • Change HV crate in tagger that is causing issues.
    • Accelerator maintenance day Thursday
  5. Commissioning steps temporarily postponed:
    • Flux optimization/Act .Col. calibration
    • PS and TAGH HV scans
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.


Monday June 20

  1. Last 24h:
  2. Reports
  3. Issues
    • Beam position is unstable
    • DAQ live time fluctuations. [4] Tagger access tuesday to look at this.
    • 24 tagger channels off. Tagger access tuesday to look at this.
  4. Plans
    • RF recovery Tuesday and machine tuning for Hall C high current.
      • Change F1TDCs in Tagger that may be causing live time issues.
      • Install helicity fibers in Tagger
      • Change HV crate in tagger that is causing issues.
    • Accelerator maintenance day Thursday
  5. Commissioning steps temporarily postponed:
    • Flux optimization/Act .Col. calibration
    • PS and TAGH HV scans
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.


Sunday June 19

  1. Last 24h:
  2. Reports
  3. Issues
  4. Plans
    • Flux optimization/Act .Col. calibration
    • RF recovery Tuesday
    • Accelerator maintenance day Thursday
  5. Commissioning steps temporarily postponed:
    • PS and TAGH HV scans
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.

Saturday June 18

  1. Last 24h:
  2. Reports
    • From PD-RC 8:45 meeting.
      • Generally everyone is somewhat unhappy. :-(
    • CPP dEdx issues. CDC is likely fine. Its gain and hit efficiency (hits found/hits measured) are normal. But tracking is missing the start counter, & the target isn't in the usual spot.
  3. Issues
    • 24 tagger channels off.
  4. Plans
    • Flux optimization/Act .Col. calibration
    • Trigger development for TOF trigger
    • RF recovery Tuesday
    • Accelerator maintenance day Thursday
  5. Commissioning steps temporarily postponed:
    • PS and TAGH HV scans
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.


Friday June 17

  1. Last 24h:
    • Tagger voltage alarms
    • Beam returned at 11 pm.
    • Harp scans performed [7][8][9]
    • Beam envelope looks good Accelerator have asked us to put these projections in the elog in future.
    • No CH edge observed. Hovanes helped to get diamond aligned overnight. [10]
    • Ran quasi production for NPP. Pressure change CDC alarm twice.
  2. Reports
    • From PD-RC 7:45 meeting.
      • Hall C not getting high current, more work is needed
      • Hall B will need a spin dance
    • Low rates in TOF [11] and low current in CDC [12]
    • Spreadsheet with list of runs
  3. Issues
    • 24 tagger channels off
  4. Plans
    • Flux optimization/Act .Col. calibration
    • Trigger development for TOF trigger
    • RF recovery Tuesday
    • Accelerator maintenance day Thursday
  5. Commissioning steps temporarily postponed:
    • PS and TAGH HV scans
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.

Thursday June 16

  1. Last 24h:
    • No beam since last meeting
    • Still getting tagger voltage alarms (should we just turn those counters off?)
  2. Reports
  3. Issues
    • High trigger rate in CTOF
      • MWPC #6 window cover removed. If successful, great. Otherwise, attempt to move helium bag downstream.
  4. Plans:
  5. Upcoming Items:
    • PS and TAGH HV scans
    • Bleed-through test: measure bleed-through with A slit as usual and A slit completely closed to see whether using B slit would help.
    • Tagger Access:
      • Change HV crate (Nick, Chris)
      • Install helicity fibers and connect to DAQ