RC meeting and Run Plan, Thursday Nov. 16, 2023

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RC Meeting Information

Time: Monday - Friday at 3:30pm

  • Location: Counting house conference room
  • ZoomGov Meeting Connection Information

https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=431

Useful Links

Procedures

Hall A call-in instructions:

  • Call RC first.
  • Techs on site 7am-4:30pm Mon-Thu, 7-11am Fri. RC will call Hall A work coordinator (Zak) during normal working hours. After hours, RC calls Tech on-call.
  • After 9 pm everything non-emergency needs to be deferred. What is an emergency and what's not? Call RC. RC talks with Mark to decide.

Hall Access procedure:

  • The Access checklist (binder on the counting room desk) needs to be filled out before making *any* access.
  • Scan (take pictures with phone) and post it to the logbook.
  • Any work inside the SBS, BB boundary needs to have PS locked out -- requires two QEWs to throw the big switch. Exception: field measurements.

Status Update

Overall Summary

General A sincere note to all the subsystem experts/owners, please perform all (if there is any) work in the hall ASAP. Please coordinate with the RC/Hall A work coordinator for this. The Hall A Techs are working on taking the hall into controlled status.

Shift Plan

Beam

  • None!

Hall A Dump Repair

  • Yesterday, there was an inspection for any sign of water in any of the electrical components - There were no signs of water (https://logbooks.jlab.org/entry/4221257).
  • The backup pump was restarted yesterday and that was circulating water through the whole night (https://logbooks.jlab.org/entry/4221258).
  • This morning the facility will turn on the main pump and will keep that under observation for 4 hours before signing off.
  • We are expecting to hear their final words after lunch.
  • If everything goes well, we may get beam either today's swing/tomorrow's owl shift.
  • Coordinated with Hall A work coordinator to take the hall into Controlled Access by the end of today (ASAP).


Accelerator status

  • Yesterday, the injector group heated the cathode - The QE became 3x its previous -estimated to last until Christmas break.
  • Last night and today during the day shift, MCC performed/will perform gradient calibrations for the cryomodules.
  • Due to some expired OSP, the RF personnel could not work on some of the cryomodules (2L22 and 2L23).
  • MCC is expecting to sign off the new OSP by noon and expects to beam to the halls by early swing.

Data collected :

None!

Hall A Subsystems Status

Target

Detectors

Magnets

  • SBS and BB are ready to turn on.

Hall access requests

We are in restricted access.

Shift schedule

IMMINENT OPEN SHIFTS

  • The shift schedule is very empty for the next 2 weeks. Please sign up if you can!!

Please check when your shifts are!

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

Please sign up for any open shifts!

Running Plan

  • Restore beam as soon as we can!

==> List of items in case He3 production running isn’t ready:

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