Run Coordination Meetings:Fall2017 Spring2018 Run/March recovery
From GlueXWiki
Revision as of 15:24, 23 March 2018 by Deurpam (Talk | contribs) (Created page with "= Runplan for restarting the Spring 2018 run after the March down time due to the transformer failure= [https://halldweb.jlab.org/wiki/images/c/c3/Spring18_week11.jpg Time ch...")
Runplan for restarting the Spring 2018 run after the March down time due to the transformer failure
Before the beam is established:
- Check that:
- Tagger quad is on at -4.2A
- PS magnet is on at 910A
- Sweeping magnet is on at 190A
- Collimator is in blocking position
- All radiators are retracted
Once the beam position is good on 5C11B (see numbers on the left white board)
- Fill the LH2 target
- Insert the 2×10-5 Al. radiator (remember to call MCC and ask to mask the FSD each time we insert/remove something from the electron beam line)
- Insert the profiler
- Request 50 nA. Check that the beam position is at x=0,y=0 on the profiler
Check the radiation monitor levels (see table on the bottom right of the white board) at 50 nA with and without the 2×10-5 Al. radiator
Retract profiler
Do Harp scans (ours and MCC).
If any of the results of the tasks above do not look good, ask MCC to improve the beam tune.
Let Hovanes know that he can check the beam convergence (we do not need the result to proceed)
