Difference between revisions of "Run Planning Meeting Notes, Nov 29-Dec 4, 2018"

Revision as of 12:28, 3 December 2018

Friday, Nov 30 at 8:45

1. Comp Cal installation
   • Completed at 6pm yesterday
2. First sight of beam (by Comp Cal): https://logbooks.jlab.org/entry/3633247
3. Swing and Overnight Running
   • 15 nA on Al V-wire (full running condition).
   • Lost beam around 2am (due to radiation damaged valve position sensor).
4. FCAL is down:
   • Monitoring current draw on CAN bus [Matt]
   • Rapid access is arrange between 10am - noon.
5. Run Plan:
   • https://halldweb.jlab.org/primexd/run_plan/Run_Plan_Fall_2018-v5.pdf
   • Beam requested today: 2nA on the foil.
6. Cryo
   • solenoid helium fill test this morning: https://logbooks.jlab.org/entry/3633314

Monday, Dec 3 at 8:45

1. Comp Cal Status
   • Friday: cell-by-cell calibration
   • Friday overnight: successful TAC run
   • Saturday: completed cell-by-cell calibration
   • Saturday overnight: no beam / TAC rate issue (due to beam characteristic change).
   • Sunday: completed voltage matching
   • Sunday overnight: voltage crosscheck data taken
   • Data ready?
2. Target
   • Be target installation (tentative date is Thursday)
   • LH2 Cooling and when?
     • Empty target data during the target colling process?
3. Accelerator
   • Beam study 9am-2pm
   • Energy change next Monday
4. Planned hall access:
   • Alex: hall tour at 1:30
   • Sean/Stuart: checking the cable for the tagger hodoscope (not scheduled)
   • Hall tour tomorrow?
5. Other idea of using the low current beam
   • Ken: The coherent peak test near the tagger hodoscope low energy boundary (preferably after the energy change) with ~2nA current

Monday, Dec 4 at 8:45

1. Target installation Plan
2. TAGM trigger issue (Richard)

https://logbooks.jlab.org/entry/3633836