RC meeting and Run Plan, Sunday December 4th

From SBS wiki
Revision as of 04:18, 4 December 2022 by Xbai (Talk | contribs) (→‎Announcement)

Jump to: navigation, search

Return to the RC Meeting Calendar

RC Meeting Information

No Meeting, Have a nice weekend!

Announcement

Bill will host a target training session on next Monday after the RC meeting. We have lots of TO shifts open; please take the chance to join the session

Shift Schedule

https://misportal.jlab.org/mis/physics/shiftSchedule/?experimentRunId=SBS-GEn-2022

Current Status

  • Very smooth production run on He3 target @ 36 uA. No big interruptions.
  • NMR polarization -
  • During Saturday Swing shift, MCC temporarily dropped us to 30 uA due to RF instability issue, I checked with MCC, confirmed that this is only temporarily, as long as they have a better RF stability, they will bring us back to 36 uA.
  • Jiwan, Alexander, Bryan and Ben traced down to the cause of the HCal f1TDC 1 & 4 timing shift issue (see a log https://logbooks.jlab.org/entry/4095193 ), Up to now, this issue only shows up in a single run 3005, Jiwan put a specific instruction on what to do when we encounter this issue again. We will keep an eye on this.
  • Target
  • There are a few runs with 50 K replay missing SBS GEMs plots due to the over-sized pdf file, which blocked them being posted to logbook, Sean reduced the pdf file size by removing a few histograms, the later runs seems fine since then.
  • For future shift takers, MCC gave us an option for checking beam restoration status, please check a detailed description in a log by Iullia [ https://logbooks.jlab.org/entry/4094990 ]

Short Term Run Plan

  • Continue production run on He3 target, 36 uA
  • Use GEnII-3stream DAQ config
  • Use ps3=0, ps5=6, others =-1
  • BBCal threshold at -366 mV, HCal threshold at -19 mV
  • NMR measurement every 2 hours

Current Issues

Planned Accesses to the Hall

  • Will try to arrange an escorted access for fixing hodoscope when we have a long beam down ( longer than 1 hour).

Special Requests

  • None

Notices in Effect for Shift Crew

  • Power down SBS, BB, and Detector HV before making an access to the Hall
Retrieved from "https://sbs.jlab.org/wiki/index.php?title=RC_meeting_and_Run_Plan,_Sunday_December_4th&oldid=4814"