Revision as of 09:58, 18 September 2021

<- Back to Run Coordination Meetings:Summer2021

Tuesday, September 16

1. Last 24 hours:
   • 5th Separator went well. Succifent Separatoion achieved.
   • Shift started at 10 pm last night.
     • Owl summary: https://logbooks.jlab.org/entry/3905917
     • Early riser summary: https://logbooks.jlab.org/entry/3905955
   • Beam is being setup/established to Hall D right now
   • CW and three Hall operations are expected at the end of the day shift.
2. Report/issue
   • Remote shifter feedback on Blue Jeans connection: sound is intermittent. Currently, not workable. https://logbooks.jlab.org/entry/3905912
   • TAGM scaler reset: https://logbooks.jlab.org/entry/3905724
   • News on hydra
   • PS Magnet is still turned off
3. Run plan
   • Wait for beam delivery. Begin experiment commissioning. Run plan

Friday, September 17

1. Last 24 hours:
   • Tune beam round yesterday noon. Good quality CW into the tagger at 15:00
     • Day Shift summary: https://logbooks.jlab.org/entry/3906056
     • Swing summary: https://logbooks.jlab.org/entry/3906229
     • Owl summary: https://logbooks.jlab.org/entry/3906383
     • Early Riser Summary: https://logbooks.jlab.org/entry/3906545
2. HARP Scan results: https://logbooks.jlab.org/entry/3906296
   • Signal to background too high or pedestal shifted (require adjustment)? : https://logbooks.jlab.org/entry/3906283
   • Tagger Gamma counter rate comparison: last night vs 2020 for same radiator: https://logbooks.jlab.org/entry/3906326
   • Evident suggest pedestal for the Halo monitor shifted
   • Empty target run overnight
     • Without Active collimator
3. Report/issue
   • AC cable wired backward? : https://logbooks.jlab.org/entry/3906359
     • Radcon is escorting Nick into the collimator cave for checking
   • Counting house microphone issue:
     • Improved significantly by the new microphone by Matt
     • A longer USB to micro USB cable will further improve the remote shift experience
4. Run plan
   • Run plan
   • Complete beam configuration (Hovanes) after fixing Active collimator
   • Detector checkout
     • Contact persons: Rachard (): richard.t.jones@uconn.edu, Drew: andrew.p.smith@duke.edu , Sasha: andrew.p.smith@duke.edu, Igal: ijaegle@jlab.org , Tyler: .
   • Low Current 2nA run this afternoon (during Mike's shift)
   • Empty target run again overnight?

Saturday, September 18

1. Last 24 hours:
   • AC Fixed at 9:30 am
     • Voltage cable was attached but not locked.
   • Hovanes completed the last step of beam check at 2pm
   • 2nA beam + bleedthrough to the Hall since then.
     • slit close, laser off.
     • Hall C at 70uA and constantly changing current between 50-70 uA
2. Overnight: snake scan.
3. Present: snake scan ongoing.
4. Shift Summary:
   • Day Shift summary: https://logbooks.jlab.org/entry/3906717
   • Swing summary: https://logbooks.jlab.org/entry/3906951
   • Owl summary: https://logbooks.jlab.org/entry/3907241
     • Early Riser Summary: https://logbooks.jlab.org/entry/3907457
5. Issues:
   • Counting house microphone issue:
     • Good enough for now. Fin tweak needed. Remote shifters: please give feedback.
   • Hall D epics gateway was dropped at 15:20, came back at 20:45. Lost 3 hours of epics data: https://logbooks.jlab.org/entry/3907119
   • https://logbooks.jlab.org/entry/3907608
   • NMR not locking:
6. Run plan
   • TAGM checkout to be completed (Richard)
   • Beryllium target installation
     • 6:30am, Beam.
     • 7:00am- 7:30am, radcon survey of beamline target area.
     • 7:30am- 8:00am, Survey & alignment setup
     • 8:00am-8:30am, removing components (Target & start counter)
     • 8:30am, Berylium target installaion by target group (with Imani's presents)
     • Total work duration: 14 hours
     • Currently planned for Monday.

1. • A Possibility of maintenance day on Tuesday.
     • Should we shift target installation by 1 day?
     • Injector tune-up to help bleed through.