Difference between revisions of "Run Planning Meeting Notes, October 28 - November 3, 2021"
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=Monday 01 November= | =Monday 01 November= | ||
#Over the weekend: | #Over the weekend: | ||
| − | #* Recorded 331M events from Fri, 8am till target was emptied. Then | + | #* Recorded 331M events from Fri, 8am till target was emptied. Then 1400M+ events with empty target until now |
#* Comment box on DAQ machine did not show up -> restarting DAQ brought it back. Missing comments for some runs recorded in logbook [https://logbooks.jlab.org/entry/3934452] | #* Comment box on DAQ machine did not show up -> restarting DAQ brought it back. Missing comments for some runs recorded in logbook [https://logbooks.jlab.org/entry/3934452] | ||
#* [https://logbooks.jlab.org/entry/3934565 Follow-up Re: Follow-up Re: TAGH scalers, roctagh2] | #* [https://logbooks.jlab.org/entry/3934565 Follow-up Re: Follow-up Re: TAGH scalers, roctagh2] | ||
| Line 11: | Line 11: | ||
#* Over the weekend, reference plots have been updated to reflect status with empty target [https://logbooks.jlab.org/entry/3935037] | #* Over the weekend, reference plots have been updated to reflect status with empty target [https://logbooks.jlab.org/entry/3935037] | ||
#* When we run with empty target, dont run AI for CDC HV. Stay with 2125V fixed value [https://logbooks.jlab.org/entry/3935003] | #* When we run with empty target, dont run AI for CDC HV. Stay with 2125V fixed value [https://logbooks.jlab.org/entry/3935003] | ||
| + | #* [https://logbooks.jlab.org/entry/3935332 power cycle of rocTAGH1, rocTAGH2, restart DAQ] due to frozen TAGH scalers | ||
| + | #* Spooky halloween shift - accelerator became unstable (lots of RF trips) sunday night [https://logbooks.jlab.org/entry/3935421] | ||
#Issues: | #Issues: | ||
| − | #* BCAL noise at 10 o'clock | + | #* <s>BCAL noise at 10 o'clock</s> |
#* Bleedthrough | #* Bleedthrough | ||
# [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:] | # [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:] | ||
#* Continue production at 200nA with the solenoid on. | #* Continue production at 200nA with the solenoid on. | ||
#* Since Hall A cannot run at present, we are the priority hall. | #* Since Hall A cannot run at present, we are the priority hall. | ||
| − | #* Maintenance day on Wed 11/03 | + | #* Maintenance day on Wed 11/03 '''beam will be shut off at ~6am''' |
| − | #* Beam energy change planned for 11/05-11/07 | + | #** Hall D will go into controlled access for maintenance work (FCAL, ...?) |
| + | #* Beam energy change planned for 11/05-11/07 | ||
| + | #* Hall A scheduled to come back online on Monday, 11/08 | ||
=Friday 29 October= | =Friday 29 October= | ||
#Last 24h: | #Last 24h: | ||
Revision as of 08:19, 1 November 2021
MCC whiteboard Meeting Bluejeans 660743227
Monday 01 November
- Over the weekend:
- Recorded 331M events from Fri, 8am till target was emptied. Then 1400M+ events with empty target until now
- Comment box on DAQ machine did not show up -> restarting DAQ brought it back. Missing comments for some runs recorded in logbook [1]
- Follow-up Re: Follow-up Re: TAGH scalers, roctagh2
- Target was emptied at 6:10pm Firday [2]
- BCAL noise at 10 o'clock
- Note on neutron background in Hall D
- Over the weekend, reference plots have been updated to reflect status with empty target [3]
- When we run with empty target, dont run AI for CDC HV. Stay with 2125V fixed value [4]
- power cycle of rocTAGH1, rocTAGH2, restart DAQ due to frozen TAGH scalers
- Spooky halloween shift - accelerator became unstable (lots of RF trips) sunday night [5]
- Issues:
-
BCAL noise at 10 o'clock - Bleedthrough
-
- Plan:
- Continue production at 200nA with the solenoid on.
- Since Hall A cannot run at present, we are the priority hall.
- Maintenance day on Wed 11/03 beam will be shut off at ~6am
- Hall D will go into controlled access for maintenance work (FCAL, ...?)
- Beam energy change planned for 11/05-11/07
- Hall A scheduled to come back online on Monday, 11/08
Friday 29 October
- Last 24h:
- Recorded 1090M+ events
- Change out of C02
- RadCon replaced light bulb (was really broken) in our rapid access beacon with an LED bulb
- Access was necessary, but machine was actually down during that time
- RCDB web interface was unreachable, shift crew contacted administrator and the service was restarted
- HallC BCM calibration should not have affected us, but they use varying beam currents for that procedure, which may have changed bleedthrough during run 81620 (see [6])
- New wiki page with short-term guidance for shifters [7]
- Beam - RF Timing differences with different trigger types
- RAID beeping in DAQ room
- Issues:
- BCAL noise at 10 o'clock
- Bleedthrough
- Plan:
- Continue production at 200nA with the solenoid on.
- Since Hall A cannot run at present, we are the priority hall.
- Maintenance day shifted to Wed 11/03
- Beam energy change planned for 11/05-11/07; decision pending due to availability of Hall A
Thursday 28 October
- Last 24h:
- Recorded 949M+ events
- Emergency Control box intermittent alarms
- TAGH scalers froze (roctagh2); TAGH1 and TAGH2 crates power cycled
- Some issues with starting root spy (see day shift summary)
- 2.5hrs downtime due to issue with magnet shunt module (has been replaced)
- Chris C (target) requested access to check heater power supply of the condenser [8].
- Our rapid access beacon is not working again (turning, but no light!)
- RadCon escorted Chris in and out of the hall.
- Rebinning issue in compton monitoring macro
- Issues:
- Rapid access beacon gives no light. The same failure happened 2 weeks ago, light bulb was replaced [9]
- Low energy tagger counters?
- BCAL noise at 10 o'clock
- Bleedthrough
- Plan:
- Continue production at 200nA with the solenoid on.
- Since Hall A cannot run at present, we are the priority hall.
- Hall C BCM calibration moved to today (Thursday) 2:30pm.
- Maintenance day planned for Tue 11/02
- Beam energy change planned for 11/05-11/07; decision pending due to availability of Hall A
