RC Meeting Information

RC Daily Meetings are at 10 am, remote connection link: https://bluejeans.com/861439920

Accelerator Status

CHL crash yesterday (about 3 pm) - beam restored 8:20 pm. Efficient beam delivery over OWL shift, DAY shift less productive (<4 ABU)
Hall A pass planning on pass change Monday (2 pass) and then again on Friday (4 pass)
Next week there will be a maintenance day (Wednesday on white board). May be the possibility for (long) access to the hall.

Efficient data taking - still no significant hall-related downtime
So far we have collected about 1650 pions (as of 7:30 am) in this configuration
Spike in Q2 insulating vacuum [1]. During accelerator down, Jerry and Larry (and Nathan) accessed the hall to possibly pump on insulating vacuum. Local gauge showed excellent vacuum, so left without pumping - pump cart is still in hall in shielded location.
HCCAM02 no longer working. Requires lift to replace (next SAD).

Continue data taking until early Nov
Planning a Controlled Access for Monday during pass change - allow Heidi to check HB cryo.

Strange issue with HV controls (SHMS 2Y11- powers off when bringing up the group) [2]. Doesn't seem to happen with new HV gui
Replace flow switches for magnets: next opportunistic access (Joe Beaufait) ( PENDING )
The HB has seen some fluctuations in the LHe levels. At the next opportunistic access Heidi would like to investigate the cryo line. ( PENDING )
- Heidi believes this is related to a vacuum issue and the access is for diagnostic purposes only. Can be escorted during regular office hours (do not call her in at midnight for this)
- If indeed it proves to be the case the only remedy would be to warm up the magnet and pump the region (which would be a multiple day operation)
- So far the PID loops have done their job and Heidi (together with the shift crew) are keeping a close eye on the LHe levels
Water flow to the dump aperture needs to be replaced: needs 4+h and Steve Suhring believes that it can wait until the SAD ( PENDING )
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.
Still running with no UPS on the SHMS cryo controls - Steve L. will put in PR for batteries and UPS. Wants to inspect existing system at next opportunity. ( PENDING )