March 4, 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

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Summary

We will have an RC meeting today at 11 a.m.

Planned Access to the Hall

• Tomorrow (03/04) the hall will go to Controlled access 7:30am-8:00am for the NPS setup change (https://logbooks.jlab.org/entry/4259689).

• Bob Michaels and Hanjie would like to do some scaler tests with the DAQ during the downtime on Monday (see the comment to https://logbooks.jlab.org/entry/4259689).

• Julie wants to replace two faulty PMTs tomorrow during the access. Swapping those two pmts needs to be done while the calo is at 6 m and should take less than one hour. She also advises changing the FADC module that records block 1075 for a better one.

Accelerator

n/a

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 (Charles): https://logbooks.jlab.org/entry/4258150
  • Peter Bosted (https://logbooks.jlab.org/entry/4259621).
  • Revised plan from Charles (https://logbooks.jlab.org/entry/4259689).

Current Issues

• Hanjie was concerned that some NPS crates have relatively higher fan temperatures (~95F). We put box fans for those crates. We also asked Facilities if they can lower the AC set point from 68F to 65F (was done on Wed 02/28).
• On Saturday (03/01) during Swing the heater power for both the loops 1 and 2 dropped to zero and recovered in a few minutes (https://logbooks.jlab.org/entry/4259365).

Future plans

• Monday (03/04): NPS setup change (https://logbooks.jlab.org/entry/4259689).
• Moller measurement next week (probably Tuesday)