Run Planning Meeting Notes, September 29 - October 5, 2022
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Hall D counting room white board
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Contents
Monday, October 3
Over the weekend
- Beam was restored to Hall D Saturday morning, 10:45AM.
- Harp scan results
- After another downtime shortly after harp scans, production running began at 1:20PM Saturday afternoon.
- trigger counts
- Shift summaries
- 0400-1000 02/10
- 2200-0400 02-03/10
- 1600-2200 02/10
- 1000-1600 02/10
- 0400-1000 02/10
Issues
- DAQ Issues (Sergey)
- 2 CDC channels tripped and would ramp back up just by resetting normally. Simon ramped them up slowly and since then have been fine.
- BCAL LED pulser script needed to be reset (Mark)
- 3 FCAL bases to be changed
Plan
- Production data on helium target
Sunday, October 2
Past 24 hours
- Shift summaries
Issues
Plan
- Production data on helium target
Saturday, October 1
Past 24 hours
- Shift summaries
Issues
Plan
- Production data on helium target
Friday, September 30
Past 24 hours
- Long maintenance day dedicated to RF recovery and injector setup in preparation for Hall A coming online
- Tagger NMR Probe Meter (Scot)
- Calorimeter modules replace in PS (Sasha)
- We collected 43.6M raw-mode cosmics events since yesterday morning.
- Beam was restored to Hall D at 11PM last night. We completed the accelerator harp scans on 5C11/B and our radiator wire scan.
- While we were setting up for production after the harp scans, there was an issue with RF dropping out of HV. Beam has been down since then.
- Alex A. added back the standard physics monitoring histograms to the rootspy GUI [1]
- Shift summaries
Issues
Plan
- Once beam is back, re-do harp scans.
- Continue taking production data on LHe at 200nA today and over the weekend.
- PS Triggers collected since He target cell inserted:
- With target filled: 5.58B
- With target empty: 1.63B
- Empty/Full = 0.29, Percentage of flux spent on empty: 22.6%
Thursday, September 29
Past 24 hours
- Helium target was filled around 1:15PM yesterday.
- 2.5B triggers collected on helium target so far.
- Last run group: Empty Target PS triggers accounted for 33% of Empty+Full data set.
- Currently taking cosmics.
- Shift summaries
Issues
- 1.5hr downtime overnight from CPS breaker trip.
- FCAL Base lockup reset
Plan
- Maintenance Day
- Hall in controlled access.
- Walkthrough training at 10AM.
- When beam is back, we will continue taking production data on LHe at 200nA.