[Halla_running] [EXTERNAL] Re: RC daily summary August 4th, 2025

[Roberto Perrino (INFN)]

Thank you for your email. I am currently out of the office on vacation. I will have limited or no access to email during this time. 
 
I will respond to emails as soon as possible upon my return. 


On 4 Aug 2025, at 14:52, Xinzhan Bai via Halla_running <halla_running at jlab.org> wrote:

> Dear Collaborators,
> During Yesterday day shift, MCC made an access to Hall A due to an IOC for a beam position monitor down, and needed manual reboot; see log entry here: https://logbooks.jlab.org/entry/4433820  . This roughly attributed 1-hour beam down for Hall A. Starting at around 11AM during Sunday day, it was decided to execute an ECal cluster threshold study; With the help of ECal experts, we took two 4-hour runs with different ECal cluster threshold, one run at 40% ECal threshold with 10 uA beam current; the other run at 60% with 10 uA beam current. Both runs accumulated more than 0.15 C charge, see log entries here: https://logbooks.jlab.org/entry/4433785  and https://logbooks.jlab.org/entry/4433787 . The program took roughly 1.5 shifts, and was completed during Monday OWL shift around 4AM. There was a couple DAQ down per shift, but they usually get resolved quickly by DAQ experts on-call. Other than that, the rest in Hall A was going smooth.
> Today is scheduled for Hall B pass change, so most of the day shift will be no beam. Wednesday day shift is scheduled for both Hall A beam line Compton study and a maintenance day, during the 8AM MCC meeting, there was a suggestion that move maintenance day to Thursday considering the amount of work required for both programs, it is not finalized yet. 
> Charge collected since yesterday's Day to today's owl:
> * Total Accumulated Charge at Kin3 so far: 74.496 C (Goal: 100 C)
> * Total Accumulated Charge at Kin3 since yesterday : 1.352 C
> Shift Summary:
> * Yesterday's Day: https://logbooks.jlab.org/entry/4433696 
> * Yesterday's Swing: https://logbooks.jlab.org/entry/4433918 
> * Today's Owl: https://logbooks.jlab.org/entry/4434228 
> 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://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_j_1616220064&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=cE_5H9I241Ivk1xpqB8Fq0UiLTkf4zMIQ6sedLYb2m8&m=4wXY3Ufcfc1YLmzdi11kh6NWIa34S9uOv-vzoyIg7rCWvTceq1uXhCbnrh_DIiFP&s=wJvonv4KtaXbFkvD7mAktH5-tVWT5b6SbgraXONS7bg&e= 
> * Meeting ID: 161 622 0064
> * Passcode: 314159
> Best Regards,
> Xinzhan
> Hall A RC
>  
> _______________________________________________
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> Halla_running at jlab.org
> https://mailman.jlab.org/mailman/listinfo/halla_running 
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