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

Revision as of 09:31, 28 February 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
  - 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 Monday?

@@ Line 13: / Line 13: @@
 #* Compton Production:
 #** 2.86 billion triggers with Be ([https://halldweb.jlab.org/rcdb/runs/search?runFrom=61321&runTo=61344&q=beam_current+%3E+25+and+event_count%3E5e5 Runs 61321-61344])
-#** 0.24 billion triggers with no target ([https://halldweb.jlab.org/rcdb/runs/search?runFrom=61308&runTo=61311&q=beam_current+%3E+25+and+event_count%3E5e5 Runs 61308-61311])
+#** 0.24 billion triggers with previous no target ([https://halldweb.jlab.org/rcdb/runs/search?runFrom=61308&runTo=61311&q=beam_current+%3E+25+and+event_count%3E5e5 Runs 61308-61311])
 #* [https://logbooks.jlab.org/entry/3660887 Occupancy plots] - Sasha
 #* [https://logbooks.jlab.org/entry/3660842 Compton plot run 61322] - Drew