RC Meeting and Run Plan, Wednesday, February 27

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RC Meeting Information

RC Daily Meetings are at 4:30 PM, 2nd floor Counting House Meeting Room

  • Bluejeans remote connection information:
 To join the Meeting:
 To join via Room System:
 Video Conferencing System: bjn.vc -or-
 Meeting ID : 861439920
 To join via phone :
 1)  Dial:
   +1.408.740.7256 (US (San Jose))
   +1.888.240.2560 (US Toll Free))
   +1.408.317.9253 (US (Primary, San Jose))
   (see all numbers - http://bluejeans.com/numbers)
 2)  Enter Conference ID : 861439920

Useful Links

Current Status

  • Low current beam overnight with some power supply issues (see below).
  • Beam was bad most of the morning/afternoon.
  • Will continue running J/Psi on kinematic Phase-2.

Current Run Plan

  • J/Psi Experiment:
  • Run Production Phase-2. Shooting for a total of 6.5 C for phase-2 kinematic before returning to Phase-3.
  • Will go to Phase-3 by Friday morning at latest if still under charge goal for Phase-2.

Notices in Effect for Shift Crew

  • Shift Leader is responsible for 50k replays. Even if the TO is actually doing them.
  • Missing Reference Times during the replay: check in the 50k. Check in full replay, if able. If it happens, call RC. Guidance to solve it is here: https://logbooks.jlab.org/entry/3654584

Current Issues

From yesterday: From Steve's logbook entry:

  • HMS Q1 and Q3 PSU M-panel (local front panels) are showing signs of failure. No action taken. Might be fixed with Q3 current readback error above.
  • Ethan installed a current limitation board on the HMS Q2 spare PSU. Currently it is set to ~700A. Needs to be increased for CSV.
  • Concerning target alarms (loss of cooling power/over head) continued when running with hall A.

Planned Accesses to the Hall

  • If we get an access, we will need to address a few items above. Otherwise we keep running until we change the setting.

Planned Accelerator Configuration Changes

Special Requests