December 7, 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: https://logbooks.jlab.org/entry/4229331

Useful Links

• Shift Signup (Read only)
  • Shift Signup

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

Current Status

• Moller Measurement yesterday, polarization = 86%
  • Beam recovery after Moller (mostly) smooth
  • Required MCC to reboot an ioc. This caused reboot of MCC ioc's
  • HMS Chamber 2V1 recovery slow (lingering structure in drift distance plot)
    • Chose to take 2 hour cosmic
  • Returned to run plan on LD2

Current Run Plan

• Continue run plan: https://hallcweb.jlab.org/wiki/index.php/Short_Term_Run-Plan
  • complete 1st cycle of KinC_x50_2 then move to KinC_x50_2'

Notices in Effect for Shift Crew

• All shifts should come in as planned.
• Heidi on vacation 7-13 Dec. Contact Steve L for cryo during that time.
• cc Heidi on any cryo logbook entry (fansler@jlab.org)

Current Issues

• On call list seems incomplete and should be addressed by the Hall: https://logbooks.jlab.org/entry/4230495
• We need other indications of this interlock. In Hall A, we have it shut off detector HV via the alarm handler, and we have a flow rate alarm. Seems the useful PV values have not been working since 1-Sept.
• NPS PMT/Base failures are propagating into columns 9 & 10