November 30, 2023

RC Meeting Information

RC Daily Meetings are at 11:00 (am) via Zoom and in person in the counting house meeting room (2nd floor)

• Zoom remote connection information:

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 Meeting ID: 160 710 0885
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Useful Links

• Shift Signup (Read only)
  • Shift Signup

• Hall-C Controls
• Hall-C Logbook
• MCC White Board

Current Status

• In controlled access

Current Run Plan

• Configuration change to kinematic x60_2 when the network issues are resolved. Continue to run plan.
• Possible Moller measurement tomorrow afternoon once the magnet is cooled.
• Completed energy measurement at the start of owl last night https://logbooks.jlab.org/entry/4229124
• BCM calibration completed at the end of swing shift last night up to 40uA https://logbooks.jlab.org/entry/4229041
• HMS dipole wouldn't turn on last night (initially) so we made an access. Joe found that the multi-phase switch was broken and was able to jumper around the switch https://logbooks.jlab.org/entry/4228976

Notices in Effect for Shift Crew

• Ln2 levels are fluctuating since yesterday. Not a problem, it just takes time to stabilize. Heidi is monitoring: https://logbooks.jlab.org/entry/4229205

Current Issues

• Everything on hallgw not working in the counting house https://logbooks.jlab.org/entry/4229248
• LV problem in Cal and FADC swap needed. Ben Raydo is notified and will come when we are ready for the access https://logbooks.jlab.org/entry/4229163
• Serious degradation of the photocathode probably contributed to the low polarization Hall B measured. Plans are being discussed about how to proceed with the gun in its current state.
• We powercycled the HMS camera on the angle to clear it https://logbooks.jlab.org/entry/4229299
• There's some ongoing issue with cryo and PLCs https://logbooks.jlab.org/entry/4229298

Planned Accesses to the Hall

• Will access the Hall this morning to fix the LV problem and swap an FADC.

Planned Accelerator Configuration Changes

• None