Run Planning Meeting Notes, December 7 - December 14, 2022
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Hall D counting room white board
Contents
Saturday Dec. 10th
Last 24h
- We were running pretty smoothly, no major issues
- Took LHe data for ~6.1B events from yesterday
- Took a TAC runs, starting from ~15:00 till 0:00, it took a bit longer because of unstable beam conditions, but at the end we were able to collect some good data
- At ~23:40 started filling target {notified target experts to keep an eye on it} to switch to normal production run with 200nA beam
- From 0:00 switched to normal production with LHe FULL target
Shift Summaries
- Day shift 12/08 10:00-16:00 https://logbooks.jlab.org/entry/4099105
- Swing shift 12/08 16:00-22:00 https://logbooks.jlab.org/entry/4099283
- OWL 12/08-12/09 22:00-04:00 https://logbooks.jlab.org/entry/4099372
- Early Riser 12/09 04:00-10:00 https://logbooks.jlab.org/entry/4099465
Issues
- There was issues with DAQ, needed to restart it for couple of times, until it stays "ON"
- Two FCAL bases are locking up, Malte told these two bases needs to be replaced, waiting for some opportunistic "Rapid Access" to let him replace the bases
Short term run plan
- Take data on LHe FULL target at 200nA beam
Friday Dec. 9th
Last 24h
- We were running pretty smoothly, no major issues
- Took LHe data for ~3.4B events from yesterday
- Hall-A during today will run at low current 1-µA for Moller measurements, and during weekend they will resume running at 36µA
Shift Summaries
- Day shift 12/08 10:00-16:00 https://logbooks.jlab.org/entry/4098611
- Swing shift 12/08 16:00-22:00 https://logbooks.jlab.org/entry/4098735
- OWL 12/08-12/09 22:00-04:00 https://logbooks.jlab.org/entry/4098860
- Early Riser 12/09 04:00-10:00 https://logbooks.jlab.org/entry/4098960
Issues
- Some FCAL bases were locked up
Short term run plan
- Take data on LHe FULL target at 200nA beam
- TAC run???
- No RC meeting during weekend, next RC meeting will be on Monday Dec-12th
Thursday Dec. 8th
Last 24h
- Wednesday was RF recovery day, Hall was in Controlled Access till ~6:30pm, many things where done during access in Hall.
- Hall (Controlled Access):
- Tim worked on Tagger magnet NMR [1]
- Sasha replaced the BCAL fADC [2]
- DIRC checkout (Justin+1).
- Sasha, Vlad, Lubomir, Sergei and Arshak: work in the PS test area.
- Sasha and Arshak installed the prototype for checking LMS https://logbooks.jlab.org/entry/4098555
- Lubomir installed GEM trackers at PS https://logbooks.jlab.org/entry/4098402
- Sasha, Arshak and Malte did some preliminary noise level tests at FCAL
- Mark Stevens: walkthrough for OPS.
- Tim and Eugene checked the man-lift
- Tim and Sasha checked by how much FCal can be pushed back (for some tentative PrimEx systematic measurements).
- Hall (Controlled Access):
- After beam comes back:
- Harp Scans were performed https://logbooks.jlab.org/entry/4098296
- Took LHe data for ~1.7B events from yesterday
Shift Summaries
- Day shift 12/07 10:00-16:00 https://logbooks.jlab.org/entry/4097947
- Swing shift 12/07 16:00-22:00 https://logbooks.jlab.org/entry/4098188
- OWL 12/07-12/08 22:00-04:00 https://logbooks.jlab.org/entry/4098385
- Early Riser 12/08 04:00-10:00 https://logbooks.jlab.org/entry/4098497
Issues
- Tagger magnet
- BCAL Occupancy Hot channel + some channels (might be baseline calibration) https://logbooks.jlab.org/entry/4098568
- DAQ issues
- FDC channel tripping https://logbooks.jlab.org/entry/4098305
- FCal base lock-ups
Short term run plan
- TAC run? (may be on weekend)
- Take date on LHe FULL target at 200nA beam