October 4, 2023

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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 remote connection information:
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX
Meeting ID: 161 701 5555
Passcode: 288953

Useful Links

• Shift Signup (Read only)

• Hall-C Controls
• Hall-C Logbook
• MCC White Board

Summary

Tuesday (10/03) Day and Swing shifts we were smoothly taking production data on LH2, LD2, and dummy (see https://logbooks.jlab.org/entry/4191627 and https://logbooks.jlab.org/entry/4191867).

Late Swing we had an issue with the raster: Controlled access had to be taken to reboot the raster IOC (https://logbooks.jlab.org/entry/4192024). The raster issue was resolved in the beginning of the Owl shift and we went back to production (https://logbooks.jlab.org/entry/4192074). We also had a few DAQ issues in the morning.

The current plan is to continue running at the KinC_x50_2 production setting. We need to stay at this setting for the total 3 days of running. At the moment we are still optimizing the parameters of the production running (beam currents, thresholds, efficiency, etc.) in order to have better control of the rates and to balance the rates on LH2 and LD2.

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

Run plan

The run plan is available here: https://hallcweb.jlab.org/wiki/index.php/Short_Term_Run-Plan

Note the simplified table of the upstream and downstream corrector currents vs. SHMS angle uploaded by Dave Gaskell. The shift workers should be able to use this table to provide starting values for the corrector currents when MCC executes the NPS sweeper setup procedure at a new configuration.

Future plans

• We need to stay at KinC_x50_2 production setting for the total 3 days of running.
• Moller measurement.