Difference between revisions of "Run Planning Meeting Notes, Mar 29-Apr 4, 2018"
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(→Sunday, April 1 at 10:00) |
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#* [https://halldweb.jlab.org/wiki/index.php/File:Spring18_week12.jpg Schematic] | #* [https://halldweb.jlab.org/wiki/index.php/File:Spring18_week12.jpg Schematic] | ||
#* Through weekend: production running. Possible 1-2 trigger work from Alex S. Possible CDC high threshold runs when pressure stabilizes. | #* Through weekend: production running. Possible 1-2 trigger work from Alex S. Possible CDC high threshold runs when pressure stabilizes. | ||
+ | #* Beam studies on Monday could be longer than 4h. Duration of Tuesday's work is TBD. Hall C will need to finish boiling studies but not quite yet. | ||
#* Access requests for Monday: Lubomir and ??? | #* Access requests for Monday: Lubomir and ??? | ||
# AOB | # AOB |
Revision as of 13:48, 31 March 2018
<- Back to Run Coordination Meetings:Fall2017 Spring2018 Run
Thursday, March 28 at 08:45
- Notes from the previous 24 hours:
- RF separator tested out ok, aimed to restore beam for swing shift but delayed due to CHL issues
- Beam arrived just before midnight, convergence not good, owl shift spent tuning
- 0800 MCC meeting notes - Todd retuning; planning machine work 4h Mon, 8h Tues MCC whiteboard
- Issues:
- Shift-takers should at least log any acknowledged alarms so that they are not forgotten
- Is there a how-to page for the BTA sheet? (load from epics, edit etc & guidelines on ABU/BANU)
- Reports:
- Run Plan
- Re-establish Photon beam
- 1h production to check beam quality & detectors
- Diamond spot adjustment (Hovanes, needs to start before noon or try again tomorrow)
- CDC Background Studies (Lubomir et al.)
- Converter thickness study (Alex S.)
- SSP Study (Alex S., postpone to early next week)
- Production running
- AOB
Friday, March 29 at 08:45
- Notes from the previous 24 hours:
- Todd retuned Hall D beamline Thursday morning, considerable improvement
- Hovanes set diamond positions but didn't have time for spot adjustment, #1 for today
- CDC background studies completed ?
- Beam became less reliable throughout swing shift, improved after midnight
- 0800 MCC meeting notes - beam studies 0830-1230 Monday
- MCC whiteboard
- Issues:
- Some rootspy hiccups, hopefully fixed
- Beam steering locks on 5C11B were off, there should be locks on 5C11B and the active collimator
- Tagger quadrupole current had loaded incorrect default value during tuning! MCC will correct the default and add alarms.
- BTA guidelines
- Reports:
- Run Plan
- Schematic
- Diamond spot adjustment (Hovanes, 2h) - done
- Converter thickness study (Alex S., 2h) - done, needs to check data quality
- CDC high thresholds (Beni, 2h) - abandoned, will try again later
- Production running through weekend, with possible 0.5h trigger work from Alex S.
- Over the weekend Richard will do prep work for the TAC run on Wed.
- Next meeting: Sunday 10am
- Thanks and best wishes to Tom Carstens who retires today
Sunday, April 1 at 10:00
- Notes from the previous 48 hours:
- Friday morning Hovanes found a new spot on the diamond; Sasha took converter thickness data
- Friday pm started CDC high threshold runs but lost beam due to Hall C's boiling study & recovery was slow.
- Friday eve erratic beam position, MCC having trouble with the locks
- Overnight beam position became more stable
- Saturday morning RF trip
- MCC whiteboard
- Issues:
- Gas shed key is absent
- Reports:
- Run Plan
- Schematic
- Through weekend: production running. Possible 1-2 trigger work from Alex S. Possible CDC high threshold runs when pressure stabilizes.
- Beam studies on Monday could be longer than 4h. Duration of Tuesday's work is TBD. Hall C will need to finish boiling studies but not quite yet.
- Access requests for Monday: Lubomir and ???
- AOB