Difference between revisions of "Run Planning Meeting Notes, October 14 - October 20, 2021"
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− | = | + | =Monday, October 18= |
− | # | + | # Over the weekend: |
− | #* | + | #* Target emptied Friday 5pm. |
− | #* | + | #* Long downtime started 5pm on Friday, beam came for an hour in the evening and was restored 6am Saturday. |
− | #* | + | #* Since then very productive: XXX M events on empty target |
− | #* | + | #* two-peak structure TDC's(of all detectors) - RF https://logbooks.jlab.org/entry/3926223 solved after restarting |
− | #* | + | #* TAGM TDC calibration problem - https://logbooks.jlab.org/entry/3926306 solved after several runs |
− | #* | + | #* NMR probe stop scanning https://logbooks.jlab.org/entry/3926647 https://logbooks.jlab.org/entry/3926650 |
− | + | #* archiving trigger rate - solved by David https://logbooks.jlab.org/entry/3925225 | |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | #* | + | |
# Remaining issues: | # Remaining issues: | ||
− | #* | + | #* tagger NMR not scanning |
− | + | ||
#* 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:] | ||
− | #* | + | #* 8am pass change - start filling the target - <b> inform target group (Chris) </b> |
+ | #* install the FDC chiller power switch | ||
+ | #* plan for day/swing on Wednesday - maintenance | ||
+ | |||
=Friday, October 15= | =Friday, October 15= | ||
Line 40: | Line 37: | ||
#* pass change on Monday | #* pass change on Monday | ||
#* day/swing on Wednesday - maintenance | #* day/swing on Wednesday - maintenance | ||
+ | |||
+ | |||
+ | =Thursday, October 14= | ||
+ | # In last 24 hours: | ||
+ | #* FDC chiller tripped due to overheating - no chilled water flow: https://logbooks.jlab.org/entry/3923962 | ||
+ | #* Could not do rapid access - beacon bulb burned out - https://logbooks.jlab.org/entry/3924326 (lost about 40 min) | ||
+ | #* Early riser summary: https://logbooks.jlab.org/entry/3924292 | ||
+ | #* Owl summary: https://logbooks.jlab.org/entry/3923921 | ||
+ | #* Swing summary: https://logbooks.jlab.org/entry/3923728 | ||
+ | #* Day summary: https://logbooks.jlab.org/entry/3923480 | ||
+ | #* ~400M triggers with B-field LHe 200nA + 300M without FDC | ||
+ | #* short downtime (~30 min) HallA BLA calibration | ||
+ | #* Run 81504 in raw mode | ||
+ | #* Run 81505 ~40min no D laser, B,C up, A down, last minute with the D laser. | ||
+ | #* PS background https://logbooks.jlab.org/entry/3923621 (Sasha) | ||
+ | #* spike in beam current https://logbooks.jlab.org/entry/3923798 | ||
+ | # Remaining issues: | ||
+ | #* fixed the beacon and the FDC chiller | ||
+ | #* noisy FDC wires https://logbooks.jlab.org/entry/3923747 | ||
+ | #* Bleedthrough | ||
+ | # [https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2021.pdf Plan:] | ||
+ | #* 2 more shifts with 200 nA and target filled with He then wait for decision from Primex 4 pm meeting. |
Revision as of 10:49, 17 October 2021
Monday, October 18
- Over the weekend:
- Target emptied Friday 5pm.
- Long downtime started 5pm on Friday, beam came for an hour in the evening and was restored 6am Saturday.
- Since then very productive: XXX M events on empty target
- two-peak structure TDC's(of all detectors) - RF https://logbooks.jlab.org/entry/3926223 solved after restarting
- TAGM TDC calibration problem - https://logbooks.jlab.org/entry/3926306 solved after several runs
- NMR probe stop scanning https://logbooks.jlab.org/entry/3926647 https://logbooks.jlab.org/entry/3926650
- archiving trigger rate - solved by David https://logbooks.jlab.org/entry/3925225
- Remaining issues:
- tagger NMR not scanning
- Bleedthrough
- Plan:
- 8am pass change - start filling the target - inform target group (Chris)
- install the FDC chiller power switch
- plan for day/swing on Wednesday - maintenance
Friday, October 15
- In last 24 hours:
- power of infiniband switch tripped (one strip cord)- causing 4h UED -https://logbooks.jlab.org/entry/3924903 https://logbooks.jlab.org/entry/3925176
- group disk not mounted https://logbooks.jlab.org/entry/3925185
- trigger rate not archived https://logbooks.jlab.org/entry/3925225
- FDC chiller replaced https://logbooks.jlab.org/entry/3924510
- beacon bulb replaced - took 2h
- FDC hot wires https://logbooks.jlab.org/entry/3924538 - no more noise but higher discr. thresholds (need 30 min to optimize the thresholds)
- 6h downtime - NL cold box + other things
- harp scans - https://logbooks.jlab.org/entry/3924829 https://logbooks.jlab.org/entry/3924830 https://logbooks.jlab.org/entry/3924845 https://logbooks.jlab.org/entry/3924851
- ~400M triggers for the last 24h
- pulser left at 2kHz after the downtime https://logbooks.jlab.org/entry/3924927 - all data after that till 23:30 with 2kHz pulser - don't forget to restore pulser to 100Hz once you are done with your test
- more rootspy nodes https://logbooks.jlab.org/entry/3924610 (David)
- power of infiniband switch tripped (one strip cord)- causing 4h UED -https://logbooks.jlab.org/entry/3924903 https://logbooks.jlab.org/entry/3925176
- Remaining issues:
- fix remaining problems on gluon machines (trigger rate not archived https://logbooks.jlab.org/entry/3925225)
- Bleedthrough
- Plan:
- run till 5pm with full target, then with empty over the weekend - inform target group (Chris) when emptying/filling the target
- pass change on Monday
- day/swing on Wednesday - maintenance
Thursday, October 14
- In last 24 hours:
- FDC chiller tripped due to overheating - no chilled water flow: https://logbooks.jlab.org/entry/3923962
- Could not do rapid access - beacon bulb burned out - https://logbooks.jlab.org/entry/3924326 (lost about 40 min)
- Early riser summary: https://logbooks.jlab.org/entry/3924292
- Owl summary: https://logbooks.jlab.org/entry/3923921
- Swing summary: https://logbooks.jlab.org/entry/3923728
- Day summary: https://logbooks.jlab.org/entry/3923480
- ~400M triggers with B-field LHe 200nA + 300M without FDC
- short downtime (~30 min) HallA BLA calibration
- Run 81504 in raw mode
- Run 81505 ~40min no D laser, B,C up, A down, last minute with the D laser.
- PS background https://logbooks.jlab.org/entry/3923621 (Sasha)
- spike in beam current https://logbooks.jlab.org/entry/3923798
- Remaining issues:
- fixed the beacon and the FDC chiller
- noisy FDC wires https://logbooks.jlab.org/entry/3923747
- Bleedthrough
- Plan:
- 2 more shifts with 200 nA and target filled with He then wait for decision from Primex 4 pm meeting.