[Halla_running] [New Logentry] RC Daily Summary 07/04/25: No RC meeting today:

[asar at jlab.org]

Logentry Text:
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No RC meeting Friday to Sunday: Untill any major changes or events occure.

Key updates for the past 24h (Thu Day+Swing and Fri Owl):

There were few/many issues from MCC side yesterday. After fixing PSS on injector and turbo pump on 0L01, they could send us beam by  13:55. HARPs and cross targed scans were done to verify correct beam position. They could deliver beam from 14:25-18:27 (~4h) which we fully utilize for production data. Another downtime was created for HV on 2L05 which lasted ~4:00h (18:30-10:30). The whole beam recovery procedure was taken again. SL followed the instruction for beam recovery procedure, where suggestion was to turn OFF the electron arm detectors. However Mark Jones has updated the instruction explicitly saying GEMS should be OFF. We could take production data for another 6 hours before accelator was taken down at 06:00 in the morning. 

A chunck of Ecal bolcks were missing (https://logbooks.jlab.org/entry/4411307), ECal expert Jhih was informed which was later recovered by him (https://logbooks.jlab.org/entry/4411402). Other subsystem behaved as expected and plots looks fine for the data.

MCC could start delivering beam again from 10:50, we started production data taking...............

We have not recieved any access to hall and any major changes for the experiment. We will be following the same run plan for weekend unless any expert suggestion is coming.
Since we are not conducting RC meeting this weekend, we will be updating on SLACK and major thing through mail.

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- Total Accumulated Charge at Kin3 so far: 42.71 C (Goal: 100 C)
- Total Accumulated Charge at Kin3 since Jul 02 noon: 1.04 C
- Estimated charge acquisition efficiency since Jul 02 noon: 97%(1.04/1.064)

Run plan:
- Production on LH2 at 20 uA;
- Spot change postponed to Wed/9; evaluate polarization measurement before that

Current issues:
- Installation of Copper plate
- Monitor scalers and replay for missing/bad data that may require DAQ components reset/reboot/run restart
- Offline analysis: working on tracking reconstruction and processing time improvement

Shift summaries:
03-Jul-2025 D https://logbooks.jlab.org/entry/4410845
03-Jul-2025 S https://logbooks.jlab.org/entry/4411063
03-Jul-2025 O https://logbooks.jlab.org/entry/4411295

Shift BTA:
03-Jul-2025 D https://logbooks.jlab.org/entry/4411055
03-Jul-2025 S https://logbooks.jlab.org/entry/4411289
04-Jul-2025 O https://logbooks.jlab.org/entry/4411459



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