[Halla_running] [Revised Logentry] RC summary Hall A July 19 2025

[pentchev at jlab.org]

Logentry Text:
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Dear Collaborators,

After fixing CDET LVs we continued production running at 20 uA. DAQ live time fluctuates down to 50% which is a major concern.
The GEM HV corrections were turned OFF.

Important issues/events to your attention:
- DAQ live times fluctuates even more going down below 50%
- L15M1 chamber trips often causing DAQ to crash (ROC22). Also "ROC 22 SLOT 21 busy" multiple times. HV reduced https://logbooks.jlab.org/entry/4421355.
- ECAL crates had to be power cycled to restore the trigger - https://logbooks.jlab.org/entry/4421560



Experiment progress:
-Charge collected during the last ~24 hour period: 1.16 C (no GEM HV corrections)
-Total accumulated charge at Kin3 so far: 61.33 C (Goal 100 C)
-Total accumulated charge at Kin3 since July 16 : 2.98 C
-Experiment running efficiency since July 16 Day shift went down to (ABU tot)/(AU tot + BANU tot): 74% 

Shift summaries:
07/18/2025 DAY:https://logbooks.jlab.org/entry/4420732
07/18/2025 SWING:https://logbooks.jlab.org/entry/4421082
07/19/2025 OWL:https://logbooks.jlab.org/entry/4421505

BTAs:
07/18/2025 DAY: https://logbooks.jlab.org/entry/4421067 
07/18/2025 SWING: https://logbooks.jlab.org/entry/4421356
07/19/2025 OWL: https://logbooks.jlab.org/entry/4421674

No RC meeting today.

Hall A RC
Lubomir Pentchev


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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/4421792
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