Run Planning Meeting Notes, Mar 12-Mar 18, 2020
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Contents
Thursday, March 12
- Last 24 hours
- DAQ "data corruption" error from FCAL crate -- seen before?
- 10% drop in PS coincidence rate seen at beginning of new run, 04:42
- Reports/Issues
- new labels on trigger monitoring plot
- Root-spy guidance help pages -- already implemented, thanks David!
- default page is brief explanation + expert to call in case of questions, issues
- experts can add instructions if they want to be called less often
- updates to text are through github -- project??
- Run Plan
- Production
Friday, March 13
- Last 24 hours
- DigiHits_occupancy monitoring plots missing? -- Naomi
- HV raised on many (25) TAGH channels -- Beni
- beam unstable (when available) during afternoon -- Alexander
- beam energy step, 2 MeV, understood -- Reinhard
- Reports/Issues
- updates to rootspy guidance
- bubblers at add line ok? -- Mariana
- apparent changes in BCal attenuation lengths -- Mark Dalton
- LED ref TDC monitoring plot missing? -- Mariana
- rapid drop in transmission close to 15% -- Alexandre
- Run Plan
- Tentative new make-shift schedule
- TAC run today, after Hall C done
- Production
For the period starting evening of Tuesday, March 17
Tentative Revised Shift Schedule -- Viral Edition
Monday, March 16
- Last 72 hours
- TAGH hv adjustments, recovery of failed channel -- Beni
- TAC run impossible, bleed-through from Hall A? -- Sasha
- snake scan of CCAL completed -- Sasha
- threshold scan of TAGH completed -- Sasha
- difficulties with DIRC hv, resolved -- Justin
- drop in collimator transmission by 20% -- Alexander
- Reports/Issues
- strange pattern in fdc occupancy -- Alexander
- fadc250 data corruption issue? -- Beni
- unable to reproduce notch structure around coinc peak in TAGM timing monitoring plot -- Richard
- standard guidance on how to reproduce monitoring plots following fixes?
- repeated DAQ start issues resolved by rebooting rocs
- shift crew is losing time retrying failed starts, often blind to what is blocking.
- can we get standard guidance on how to find which roc is holding busy?
- Run Plan
- TAC run to be taken opportunistically, when Hall A is down -- Sasha
- Plan to instrument active collimator with a reference electrode bias -- Richard
- Tagger microscope intensity scan with diamond radiator requested (1 shift) -- Richard
- Production
- Jlab at MEDCON 5 -- starting tomorrow!
Tuesday, March 17
- Jlab at MEDCON 5 -- starting today!
- Continuous bluejeans meeting open in counting house
- Hall D going to single-person shifts starting today at 16:00
- Last 24 hours
- fcal PDU reboot recovers missing channels -- Colin
- raw mode run 72291 (30 minutes of beam) was taken, then production continued
- fadc250 in FCAL7 slot 3 replaced
- Reports/Issues
- Run Plan
- New BCal pedestal run requested -- Mark
- TAC run planned for Wednesday morning, starting 7:00am when Hall A plans a Moller run -- Sasha
- Plan to instrument active collimator with a reference electrode bias -- Richard
- Tagger microscope intensity scan with diamond radiator requested (1 shift) -- Richard
- Other systematics studies?
- Low-intensity scans to study reconstruction efficiency dependence on photon intensity: suggested run plan and list of runs from 2018 scans
- Building access at MEDCON 5
Tonight's plan for low intensity running
Wednesday, March 18
- Single-person shift schedule in operation, since yesterday 16:00
- the schedule, linked from main Hall-D web page -- Eugene
- the shift rules, linked from main Hall-D web page -- Eugene
- the shift rules, linked from hdops wiki -- Eugene
- 4-hall video feeds are now available, displayed on screen above copier
- Continuous bluejeans meeting open in counting house -- in preparation
- Last 24 hours
- fcal PDU reboot recovers missing channels -- Colin
- raw mode run 72291 (30 minutes of beam) was taken, then production continued
- fadc250 in FCAL7 slot 3 replaced
- Reports/Issues
- Run Plan
- New BCal pedestal run requested -- Mark
- TAC run planned for Wednesday morning, starting 7:00am when Hall A plans a Moller run -- Sasha
- Plan to instrument active collimator with a reference electrode bias -- Richard
- Tagger microscope intensity scan with diamond radiator requested (1 shift) -- Richard
- Other systematics studies?
- Low-intensity scans to study reconstruction efficiency dependence on photon intensity: suggested run plan and list of runs from 2018 scans
- Building access at MEDCON 5