RC Meeting, Wednesday, October 27 , 2021

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Revision as of 08:35, 27 October 2021 by Mack (Talk | contribs) (Hall C Status)

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RC Meeting Information

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

Accelerator Status

  1. Beam delivery back to Halls B,C,D on owl shift.

Hall C Status

  1. Back in production at 42 muA on late swing.
  2. On late swing, alarms due to dropping HB LHe levels at back. We have our good days, but they always come back. Steve L intervened. https://logbooks.jlab.org/entry/3933018 https://logbooks.jlab.org/entry/3933051
  3. SHMS Q2 Interlock plus some sort of communication reset required on a screen I haven't seen before. https://logbooks.jlab.org/entry/3933073
  4. Number of good pions is ????.

Current Run Plan

  1. Day shift only: Try to take 1 hour of Dummy target each day. (a 100% live hour)
  2. Tentatively scheduled: a BCM calibration on Wednesday mid-afternoon.
  3. Continue data taking until early Nov

Current Issues

  1. Replace flow switches for (HMS?) magnet power supplies: next opportunistic access (Joe Beaufait) ( PENDING )
  2. Q3 insulating vacuum spikes generating alarms. For example, https://logbooks.jlab.org/entry/3930175 .
  3. One HB LHe incident of note: https://logbooks.jlab.org/entry/3929152 . (possible clue to the origin?)
  4. Target ladder camera was identified to be bad: Joe Beaufait will order camera ( PENDING )
  5. Still running with no UPS on the SHMS cryo controls - Steve L. has ordered batteries and UPS. ( PENDING )
  6. HCCAM02 not functioning (lift required to replace).

Special Requests

Useful Links