RC Meeting, Thursday, September 2, 2021

RC Meeting Information

RC Daily Meeting at 10:00 am, (remote)

• Bluejeans remote connection information:

 To join the Meeting:
 https://bluejeans.com/861439920
 To join via Room System:
 Video Conferencing System: bjn.vc -or-199.48.152.152
 Meeting ID : 861439920
 To join via phone :
 1)  Dial:
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   +1.888.240.2560 (US Toll Free))
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 2)  Enter Conference ID : 861439920

Useful Links

• Fall 2021 Shift Schedule
• Hall-C Controls
• Hall-C Logbook
• MCC White Board

Accelerator Status

• Trying to deliver beam for physics to Hall B; issues last night with the beam size being too large and tails on vertical; Hall B accepted the beam for now but they want optimization ASAP;
• ARC power supplies: they are finishing up ARC 8 and then everything will be ready for Hall C beam delivery
• 5-pass setup: Sep. 5-6
• Hall C setup: Sep. 7
• Hall C start of Physics: September 8th

Hall Status

• Target cooldown with He completed yesterday; H and D condensation will happen prior to first tune beam into the hall - probably on Monday
• Steve L. rotated HMS and SHMS yesterday but not to the start-up angles of 7.5 deg (SHMS) and 12.5 deg (HMS); will double check with him that we can go ahead and rotate remotely; we should make sure SHMS and HMS are at the start-up angles before the hall sweep
• Walter did the tech checklist and posted; all others: please do your checklists; we promised Ops that we would be ready for a sweep starting with late Friday afternoon

Notices in Effect for Shift Crew

• Please read safety documentation (https://hallcweb.jlab.org/safety-docs/Fall2021/) and sign in the "yellow binder" in the Counting House

Current Issues

• Missing FADC information in PMT#2 of the noble gas cerenkov. Signals seen on scope. Investigation ongoing
• Interlock tripping on HMS Q1 [https://logbooks.jlab.org/entry/3896458} Steve took a look yesterday. Mark will exercise magnets today. --> need update
• Target motion camera should be installed. Waiting to hear back from Joe B.
• Checklist need to be done to lock up the Hall (Brad, Walter, Dave G, Steve L). Will wait until after tomorrows scheduling meeting to schedule.
• Shifts need to be filled for next week (Monday SWING) [1]
• Missing links in wiki run plan [2]
• Checklist not posting to HCLOG [3]