March 21, 2024

RC Meeting Information

Current RC: Rachel Montgomery (rmontgom@jlab.org)

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

• Short term run plan [1]
• Shift Signup (Read only)
• Hall-C Controls
• Hall-C Logbook
• MCC White Board
• Daily RC Reports

Summary

RC update 21st March: Yesterday, beam studies was cancelled so we continued with production running through this morning (Kin_x50_0). A few notable events over the past 24 hours.

• SWING shift:Target alarm, Loop 1 & Loop 2 heaters drop (Yellow Alarm). Both recovered quickly without action from the TO: https://logbooks.jlab.org/entry/4269820
• OWL shift: The SHMS angle on the gui is drifting. Will need to have it fixed before any changes to the SHMS angle: https://logbooks.jlab.org/entry/4270036
• Rotation issues. Yesterday and today the HMI needed to be reset (by Ellen)

There was discussion during the RC meeting yesterday about moving the calorimeter to 4 meters (from 3 meters, where we currently are). We have settled on a plan for the next few days. 1.) Today (03/21/2024): At ~9:15 am, with the assistance of RADCON and the Hall C techs, the calorimeter will be moved to 4 meters. 2.) Tomorrow (03/21/2024): In the morning, the calorimeter will be moved back to 3 meters. It will remain at 3 meters through the weekend

Planned Access to the Hall

• 03/20/2024 - 03/21/2024 (Morning): KinC_x50_0 / NPS = 14.40 deg
• 03/21/2024 - Move NPS to 4 meters: KinC_x50_0b / NPS = 17.61 deg
• 03/22/2024 - Move NPS to 3 meters: KinC_x50_0 / NPS = 14.40 deg

Miscellaneous

• New Run Group in Hall B. Don't worry about the beam polarization. How often should we change the IHWP?

Shift schedule

Sunday March 24th DAY (TO) & Monday March 25th OWL (SL)- Needs to finish Radworker Training (Monday March 25th)