[Hallc_running] [Revised Logentry] RC Daily Summary August 26, 2025

[ole at jlab.org]

Logentry Text:
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Hall C had another productive 24 hours. We logged 17.3 ABU hours (72% efficiency). The z=0.67 pi+ theta_pq=2.0 kinematics (pages 46-49 in the run plan) was completed around 21:45 during SWING. We then moved to z=0.50 pi+ theta_pq=2.0 (pp. 50-53, ETA 3 shifts). In this setting, which is still ongoing, we also take data on the aluminum target. During DAY today, MCC will perform the Hall C Fast Feedback checkout (essentially beam studies) in the morning, followed by the BCM calibration in the afternoon. The FFB plan should be largely non-intrusive to our data taking.

Updates from Accelerator:
- There will be a maintenance day on Wednesday (tomorrow, 8/27), starting at 5:30. ETA for beam late SWING (23:00 or such).
- Another Hall B pass change is anticipated for Thursday DAY. The Wien filter angle will be changed at this time as well.

Planned activities in the hall tomorrow:
- Hall C will go into restricted access from about 9:00-12:00 for a tour. The truck ramp will be open.
- A safety walkthrough is scheduled from 13:00-14:00.
- LAD decabling may be done as time permits

Shift summaries:
8/25 DAY: https://logbooks.jlab.org/entry/4450405
8/25 SWING: https://logbooks.jlab.org/entry/4450670
8/26 OWL: https://logbooks.jlab.org/entry/4450852

We will have the regular RC meeting at 2:30 pm today in the counting house conference room.
Zoom link: https://jlab-org.zoomgov.com/j/1618227115?pwd=8JkhFg6YNesVc3HNgWjwUSIKIu5SvP.1
Meeting ID: 161 822 7115
Passcode: 253463
Dial-in: 833 568 8864

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This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/4451127
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