Difference between revisions of "Run Planning Meeting Notes, Feb 28 - Mar 6, 2019"

Revision as of 00:44, 1 March 2019

Past 24 hours:
- Beam orbit locks off to allow Hall C current increase
- Unstable beam, lots of tuning to get high current for Hall A/C. 25 trips/hr average and will work to improve when they identify a path forward.
- Compton Production:
  - 2.86 billion triggers with Be (Runs 61321-61344)
  - 0.24 billion triggers with previous no target (Runs 61308-61311)
- Occupancy plots - Sasha
- Compton plot run 61322 - Drew
- Energy monitoring - Alexandre
Today (Thursday):
- Remove Be foil @ 8 AM, but leave cylindrical holding tube. Lockup hall at ~1 pm
- Production running with no target until 6 am Friday morning
Friday plan:
- LHe target installation:
  - Hall open at 6 am for bleeding up beamline

Past 24 hours:
- Examination of material in beamline
- Shift in CompCal acceptance along +x
- Empty target production: ??? billion triggers with empty target (Runs 61345-???)
Today's plan:
- LHe target installation:
  - Hall open at 6 am for bleeding up beamline
  - Other work in the Hall: start counter installation, others?
LHe target cooldown and filling schedule?
- Chris expects ~10-12 hours required for cooldown. He would like to be here during the initial fill.
- Possible plan: Run warm empty target for few shifts, start cooldown over the weekend and fill on Sunday/Monday?

@@ Line 4: / Line 4: @@
 * [[Run_Coordination_Meetings:Spring2019_Run]]
 * [https://halldweb.jlab.org/wiki/index.php/Spring_2019_Primex PrimEx-&eta; run plan]
+* [https://halldweb.jlab.org/primexd/prod_spring_2019/run_list.pdf Production runs, number of triggers]
 * To join via a Web Browser, go to the page [https://bluejeans.com/660743227 https://bluejeans.com/660743227]