February 29, 2024

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RC Meeting Information

Current RC: Iuliia Skorodumina

RC Daily Meetings are at 11:00 (am) via Zoom and in person in the counting house meeting room (2nd floor)

• Zoom connection link: https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX
• Meeting ID: 161 701 5555
• Passcode: 288953

Useful Links

• Shift Signup (Read only)
  • Shift Signup

• Hall-C Controls
• Hall-C Logbook
• MCC White Board
• Daily RC Reports

Hall status

• Completed Carbon DIS data taking
• Completed two cycles of Positron data taking

• Controlled access from 9am this morning
  • Planned work: https://logbooks.jlab.org/entry/4258144

• Hall needs to be back to beam permit for the last part of the beam study (~around 3-4pm).

• MCC will give us 1h heads up before they need the Hall C in beam permit

Accelerator status

• Maintenance + Beam study (https://logbooks.jlab.org/entry/4258072)
  • Beam off at 7am
  • Maintenance till around noon
  • Beam study till 19:30pm
  • Beam to the halls, ~21:00pm
  • Scheduled can be shifted a bit depending on how things go..

Planned Access to the Hall

• https://logbooks.jlab.org/entry/4258144
• NPS: Julie, Josh, Aaron to look at the temperature read back issue
• Heidi: checking Dipole (----> DONE)
• Hanjie, Alexandre: checking NPS crate fans (---> DONE)
• Larry, Jerry, Bob: Pumping SHMS magnets
• Bill: SHMS hut temperature sensor --> DONE; Summary: https://logbooks.jlab.org/entry/4258173
• Walk-thru at 1pm: Joe + 5 FIU students (6 keys)
• Facilities: lowering AC set point to 65F (---> DONE)

• Other work planned during the downtime
  • Ellen and Heidi: updating magnet software
  • Hanjie will use the DAQ (will notify the shift crew before/after she is done)

Current Run Plan

• Short-term run plan: https://hallcweb.jlab.org/wiki/index.php/Short_Term_Run-Plan
  • KinC_x36_6, NPS at 7.5 deg, calorimeter at 6m

• NPS position for the next kinematics setting:
  • 5m vs 6m: https://logbooks.jlab.org/entry/4258150

Notices in Effect for Shift Crew

• IHWP change instruction: https://hallcweb.jlab.org/wiki/index.php/Hall_C_IHWP_Change_Procedure
• BTA with low current - https://logbooks.jlab.org/entry/4256075
  • Helper script: go_bta_config

Current Issues

• NPS crate #2 drops occasionally
  • Not much reported recently, taking 30min runs (restarting a new run more often) seems helping
• NPS crate temperatures

Special Requests

• Guard house work till Friday. Pay attention to the sign and follow the directions around there when coming to the accelerator site.