Run Planning Meeting Notes, March 8 - March 15, 2023

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Zoom Connect Meeting ID: 160 199 0060 / Passcode 8394

MCC Whiteboard

Hall D counting room white board

Spreadsheet with list of runs

Integrated Trigger Count

Hall D Logbook

Wednesday March 15

Past 24 hours

  • production continues, start of the day shift:injector orbit optimization issue, trippy beam, beam lost: BLM trips, TAGH HV alarms, production smooth over the night. No beam at this time take for wednesday.
  • ABU=13.58 hr(Wednesday morning upto 8 am)

Shift Reports

Reports

Issues

Plans

  • Tagger Hall Access (March 15) by Hovanes(After the Hall is surveyed and gets into controlled access)
  • High current run(900 nA)[High intensity scan:Final round] with modified trigger thresh-holds[Wednesday swing/Thursday day Shift][Justin, Sasha, Lubomir, Naomi][Access not required]
  • Straight-track run ~50nA (Magnetic field off: drift chamber)[March 19th sunday swing][Justin, Sasha, Lubomir,Naomi][Access not required]Instructions for Straight-track run

Plans on Accelerator Side

  • Beam Test studies/BPM test(wednesday. 3 Beam studies planned so far. One is at Hall A while 2 for cebaf center and could take from 3 pm to late swing shift.

Regular Production Cycle

  • Production (300 nA, 2h runs) with cycle:
    • 2 runs PARA (0/90)
    • 2 runs PERP (0/90)
    • 2 runs PARA (45/135)
    • 2 runs PERP (45/135)
    • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Tuesday March 14

Past 24 Hours

  • Halld Beam Stopper mismatch, hall is in power permit from morning ~6:50 am.
  • Back to beam permit at ~3:50 pm.
  • Harp Scan(>10 hours without beam and several works on accelerator)
  • A very short ~11 min run as per Sasha's request in a raw mode
  • Production resumed
  • ABU=10.82 hr (till 12:00 am)

Shift Reports

Reports

Issues

Plans

  • Hovanes will seek Tagger hall access on wednesday. Need Radcon support. It has already been set up for morning.
  • Sasha will be taking 5-10 min of data on raw mode once beam comes back(done)
  • When HallC is down, more data for TAC run?(next week) [Sasha]
  • High current run(900 nA) with modified trigger thresh-holds[Wednesday Swing Shift][Justin, Sasha,Lubomir][Access not rquired]
  • Straight-track run ~50nA (Magnetic field off: drift chamber)[March 19th sunday swing/owl shift][Justin, Sasha, Lubomir][Access not required]

Plans on Accelerator Side

  • Beam Test studies/BPM test (wednesday)

Regular Production Cycle

  • Production (300 nA, 2h runs) with cycle:
    • 2 runs PARA (0/90)
    • 2 runs PERP (0/90)
    • 2 runs PARA (45/135)
    • 2 runs PERP (45/135)
    • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Monday March 13(Past 72 hours)

Friday Through Monday March (10-13)

(Friday)

  • Production whenever beam available on Friday mid-day shift, then at 2:51 pm beam down due accelerator issue. ETA was 7-8 pm swing. Beam restored around 9 pm.
  • Harp Scan[Friday swing]
  • Opportunistic Access(Friday): Karthik, Zisis, Stejphan: (EIC) mini BCAL prototype test
  • Hovanes:TPOL crate powercycled: alarm exists but self disappears quickly after increase of delay by 60s
  • ABU=10.37 hr (Upto Friday 8 am)

(Saturday)

  • Production continues, Issue on 1LO4 HV drop(NL) : cost ~2 hours of downtime, trippy beam
  • Beam back: day shift crew continued production followed by swing(trip rate is still high), towards the mid-swing shift: trip rate low,better beam delivery.
  • ABU=8.63 hr(Saturday 8 am)

(Sunday)

  • Production continues throughout the owl shift, Early riser and mid-day shift. Started TAC run study by Sasha at about 2 pm. Expected completion: Late swing shift.Before the Vacuum pump alarm(11:30am-1:15 pm), beam was good with less trips. Finished TAC run. Beam restored. But accelerator had problems 1L05,07 NL system at the begining of owl shift. Beam restored at 12:13 pm and production also resumed.
  • ABU=14.73 hr (Upto Sunday 8 am), far better

(Monday: upto 8 am)

  • Production running from midnight,
  • ABU=8.03 hr (Monday upto 4 am)

Shift Reports

Reports

Issues

Plans

  • bleed through measurement sunday, as of 2 pm it is going forward and Sasha and shift crew are working on it. TAC run started. Expected completion: late swing shift, then resumes production.

Regular Production Cycle

  • Production (300 nA, 2h runs) with cycle:
    • 2 runs PARA (0/90)
    • 2 runs PERP (0/90)
    • 2 runs PARA (45/135)
    • 2 runs PERP (45/135)
    • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Friday March 10

Past 24 hours

  • Production continued
  • Four hall operation until ~11 pm, then HallC down until the morning. A,B and D operational overnight.
  • Beam was trippy during the day but got better over the swing shift through owl shift.
  • ABU=10.37 hr(midnight), ~4bn triggers

Shift Reports


Reports

Issues

  • TPOL alarms continued
  • DAQ live time 0%, restart did not solve, Surgey had to reset gluon01 crate: solved
  • DAQ issue early riser this morning: ROCFCAL error,DAQ reset (solved)
  • Active collimator bias voltage:[7] alarms to EPICS (Lubomir and Hovanes to communicate for TPOL card, one is in use. We should have one more somewhere)

Plans

  • Opportunistic Access by Zisis/Karthik for mini BCAL prototype
  • TAC run (next week? or 3/10: HallC down for the night and probably for entire morning)
  • Energy measurement at HallC
  • Bleedthrough measurement at HallD
  • if HallC run low current or down for 2 hours at least, Sasha will do some work on TAC run.
  • 3/10 HallC will have some down time at least some part of morning confirmed from HallC RC(Joerg), can we do some tests during HallC downtime?
  • Sasha Positive for the morning(3/10) based on HallC condition till that time.

Regular Production Cycle

  • Production (300 nA, 2h runs) with cycle:
    • 2 runs PARA (0/90)
    • 2 runs PERP (0/90)
    • 2 runs PARA (45/135)
    • 2 runs PERP (45/135)
    • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)

Thursday March 9

Past 24 hours

  • Work on Injector(early day shift): completed, beam restored.
  • HI test(900nA) Pb and Mo foils, HI study completed at the end of day shift and nominal production conditions restored including AC gain 10^-8
  • Production resumed at swing shift with AMO radiator configuration
  • Rate Scan study by Sasha: Swing shift, raw and production mode at different currents:300nA, 350nA and 400nA
  • Production resumed with 0/90 PARA after Sasha's rate scan completion
  • Beam off due to 1L09 tripping high voltage(~1.5hr)
  • Beam (trippy) early owl shift, then better beam, then beam current was fluctuating and was under 300 nA
  • ABU=11.28 hr(till 8 am 3/9), ~2 bn production triggers till 5 am 3/9, smooth running over the night

Shift Reports

Reports

Issues

  • TPOL alarms
  • DAQ issue this morning: live time dropped to 0%, restarting solved the issue

Plans

  • TAC run whenever opportunity comes( HallC run at small current or down)

Regular Production Cycle

  • Production (300 nA, 2h runs) with cycle:
    • 2 runs PARA (0/90)
    • 2 runs PERP (0/90)
    • 2 runs PARA (45/135)
    • 2 runs PERP (45/135)
    • 1 run AMO (use it to rejuvenate AMO reference in CBREM EPICS GUI)
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