Run Planning Meeting Notes, January 26 - February 1, 2023
From GlueXWiki
Hall D counting room white board
Contents
Thursday January 26
Past 24 hours
- Production on diamond. ABU= 10 h for the day.
Shift Reports
Reports
- Alternative to barometric pressure measurement (Naomi). Whiteboard instructions have been updated.
- Online calibrations started (Sean)
- MCC is scheduling maintenance for Feb 1st
Issues
- Follow up on HallD dp variation
- Start counter 96 degree rotation in cabling or software space (Simon).
- Tentative plan of action: To turn off the low voltage to the SiPM bias for a few specific start counter paddles and take a 1-hour run where we can identify the physical location of these paddles using the tracking detectors.
- DIRC LED TDC missing (David Lawrence, Justin) DIRC SiPM reference signal (Justin)
- Tentative plan of action: Chris Stanislav will have a spare this afternoon and Justin will install during an opportunistic access
- Fixing FCAL Bases Lockup (Jon)
- Beam Downtime Re-steering Arcs This might need a while to be fixed. They are hoping this fixes some issues they have been seeing in the past few days.
- TPOL GAP (Beni): this is a translation table issue (Justin)
Pending:
- BCM calibration. Accelerator instrumentation group informed us that last BLA calibration was done in 2021 (beside that done last Thursday, 01/19/2023? To be confirmed) and recommend Ops to do one at each start of the run period.Talked to the PD, he will keep in contact with us on how to proceed.
- A request for the kitchen lights to be fixed should be submitted next time there is beam downtime.
Plans
- 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 GUI)
- Trigger fine tuning Thursday? (A. Somov)
Friday January 27
Past 24 hours
- Production on diamond. ABU= 1.3 h for the day.
Shift Reports
Reports
- MCC is scheduling maintenance for Feb 1st
- Barometric pressure alarm (Hovanes).
- DIRC SiPM Update (Justin) The inverter box was installed and it is working
- Harp Scan Results Could we add procedures on how to judge the results for the extrapolation?
- The left Ar gas supply bank is empty The new supply will be swapped out today
- Trigger fine tuning Sunday (A. Somov)
- GlueX Statistics
- PARA 0/90: 11%
- PERP 0/90: 14.1%
- PARA 45/135: 15.2%
- PERP 45/135: 15.5%
- AMO : 44.2%
Issues
- Start Counter HV match test (Beni) There is a physical rotation on the counter.
Pending:
- BCM calibration. Accelerator instrumentation group informed us that last BLA calibration was done in 2021 (beside that done last Thursday, 01/19/2023? To be confirmed) and recommend Ops to do one at each start of the run period. PD will keep in contact with us on how to proceed.
Plans
- Harp scan once beam returns. Then continue 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 GUI)
Monday January 30
Past 72 hours
- Production on diamond. ABU= 44.5 h for the weekend. (15.7 h Friday , 17.1 h Saturday, 11.7 Sunday)
Shift Reports Friday
Shift Reports Saturday
Shift Reports Sunday
Reports
- MCC is scheduling maintenance for Feb 1st
- Monday the beam will be off for ~3 hrs. They will power up RF for 5th pass (~2hrs) and then 4th pass (~1hr). These tasks are related to the Moller polarimetry measurement of Hall A
- Start counter resolutions look reasonable again (Sean)
- tagger energy calibration updated in ccdb (Richard)
- Follow-up: TAGM mapping after installation (Richard)
- FCAL voltage scan
- GlueX Statistics
- PARA 0/90: 12%
- PERP 0/90: 15%
- PARA 45/135: 14%
- PERP 45/135: 12%
- AMO : 44%
Issues
- Start Counter (Beni) The Start Counter is in the same physical position (2014 and 2019 pictures)
- TPOL channel 23 missing (Justin) TPOL occupancy hole (Hovanes)TPOL Presentation (Michael Dugger) We can check it on Wednesday during maintenance
- TAGH HV crate problem again (Hovanes)
- TAGH alarming channels: bad board ? (Hovanes) We have a spare.
- FCAL has new hot channels (Hovanes)
- Missing TAGH FADC channels (Hovanes) (Probably on purpose)
- We might need to add a few extra runs for -45 trigs to catch up to the others
Pending:
- BCM calibration. Accelerator instrumentation group informed us that last BLA calibration was done in 2021 (beside that done last Thursday, 01/19/2023? To be confirmed) and recommend Ops to do one at each start of the run period. PD will keep in contact with us on how to proceed.
Plans
- Opportunistic access to reset tagger (To be confirmed after morning meetings)
- Harp scan after beam is restored
- Sasha will perform trigger studies in the 10pm - 4am shift.
- Production (300 nA, 2h runs) with cycle:
- 2 runs para(0/90)
- 2 runs perp(0/90)
- 2 runs para(45/135) -> at least 1 extra run to catch up (~.6B triggers down) [corrected]
- 2 runs perp(45/135)
- 1 run amo (use it to rejuvenate amo reference in CBREM GUI)
Tuesday January 31
Past 24 hours
- Production on diamond. ABU= 9.4 h for the day.
Shift Reports
Reports
- MCC is scheduling maintenance tomorrow during MCC Day shift. Requested Controlled Access
- TAGH HV crate power cycled (A. Somov)
- FCAL HV alarms (Hovanes)
- Harp Scan (Churamani)
- Preparations for task 9 of Run Plan. MCC requested a follow up email with a detail explanation of the plan. Paul Vasilauski mentiond that "Ops current trigger point is >2 μA to HallD to require RadCon involvement "
- GlueX Statistics
- PARA 0/90: 13%
- PERP 0/90: 14%
- PARA 45/135: 16%
- PERP 45/135: 14%
- AMO : 43%
Issues
- Start Counter (Beni) We want to confirm that the cables are in the right location. On Wednesday we can take a look at them.
- TPOL channel 23 missing (Justin) TPOL occupancy hole (Hovanes)TPOL Presentation (Michael Dugger) We could check it on Wednesday during maintenance
- TAGH alarming channels: bad board ? (Hovanes)We have a spare. It can be changed on Wednesday
Pending:
- BCM calibration. Accelerator instrumentation group informed us that last BLA calibration was done in 2021 (beside that done Thursday, 01/19/2023? To be confirmed) and recommend Ops to do one at each start of the run period. PD will keep in contact with us on how to proceed.
Plans
- 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 GUI)
Wednesday February 1
Past 24 hours
- Production on diamond. ABU= 9.4 h for the day.
Shift Reports
Reports
- Maintenance day Requested Controlled Access for Tagger Hall and Restricted Access for the main Hall
- During the Day and Swing shifts the beam was unstable going 300 nA +/- 20 nA
- Preparations for task 9 of Run Plan. Email with a detail explanation of the plan was sent to the PD, we are waiting to hear back from them.
- Trigger rates in 2020 and 2023 (A. Somov)
- Since Beni saw yesterday the TPOL channel 23, we do not need to check it out today
- GlueX Statistics
- PARA 0/90: 14%
- PERP 0/90: 14%
- PARA 45/135: 17%
- PERP 45/135: 14%
- AMO : 40%
Issues
- Start Counter (Beni) We want to confirm that the cables are in the right location
- TAGH alarming channels: bad board ? (Hovanes) We have a spare that Boris will change today.
- Reconstructed Photon Beam Energy Spectrum r (Churamani) Deep between 10-11 GeV
Pending:
- BCM calibration. Accelerator instrumentation group informed us that last BLA calibration was done in 2021 (beside that done Thursday, 01/19/2023? To be confirmed) and recommend Ops to do one at each start of the run period. PD will keep in contact with us on how to proceed.
Plans
- 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 GUI)
