RC Meeting, Wednesday, October 07 , 2021
From HallCWiki
Jump to navigationJump to search
RC Meeting Information
RC Daily Meetings are at 10 am, remote https://bluejeans.com/861439920
Accelerator Status
- Smooth beam delivery.
- Helicity board will be switched to no delay reporting and remain at 120Hz.
- Hall A likely to be ready to receive beam tomorrow mid-day. Experts are on standby to execute a fast setup for all 4 halls.
Hall C Status
- Beam delivery during the BCM calibration went smoothly ([1])
- Smooth running for the rest of the evening and over night.
- At 1:30 last night the 15K supply temperature shot up to 16.5 (https://logbooks.jlab.org/entry/3919367). This resulted in no beam for ~20min. Experts are looking into it.
- Dave M pointed out that our ice ball over the target has been growing since Sunday (https://logbooks.jlab.org/entry/3919436).
Current Run Plan
- Continue stable data taking until configuration change (hopefully over the weekend)
- Production data on LH2 target with 45 uA beam at kinematics (SHMS: 8.035 GeV/c, 5.505 deg | HMS: -1.026 GeV/c, 47.07 deg)
Current Issues
- Target ladder camera was identified to be bad: Joe Beaufait will purchase a replacement in the next funding cycle ( PENDING )
- Still need to follow-up with Joe about when the purchase can be done.
