[Halla_running] RC daily summary August 5th, 2025

[Xinzhan Bai]

Dear All,

Yesterday we had smooth running with 20 uA beam on LH2 target. There is an on-going ECal calibration and trigger threshold study/discussion, we will discuss more in today’s RC meeting. Besides that, during yesterday swing there was a target ESR issue, which was resolved momentarily (thanks to Chandan), see log entries https://logbooks.jlab.org/entry/4434987, https://logbooks.jlab.org/entry/4434992, and https://logbooks.jlab.org/entry/4435000. Tomorrow will be a maintenance day, Hall A Compton study has been pushed to Thursday. We need to access the Hall to prepare for the Thursday Compton study, so Hall A will be in controlled access during the maintenance day (PD and RadCon have been notified). If you have any work that needs to access the hall, please take the chance tomorrow.

Since yesterday's Day to today's owl:
* Total Accumulated Charge at Kin3 so far: 75.48 C (Goal: 100 C)
* Total Accumulated Charge at Kin3 since yesterday : 0.986 C

Updates from MCC:
* Maintenance day tomorrow, Hall A would be in controlled access.
* Hall A Compton study on Thursday

Current Issues and Hall activities:
* ECal calibration constant and Trigger threshold

Shift Summary:
* Yesterday's Day: https://logbooks.jlab.org/entry/4434522
* Yesterday's Swing: https://logbooks.jlab.org/entry/4434849
* Today's Owl: https://logbooks.jlab.org/entry/4435096

RC Meeting:
* We will have RC meeting today at 1 pm in the conference room in the second floor of the CH and on Zoom.
* https://jlab-org.zoomgov.com/j/1616220064
* Meeting ID: 161 622 0064
* Passcode: 314159

Best Regards,

Xinzhan

Hall A RC

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