[Halla_running] [New Logentry] SBS RC daily summary

[asar at jlab.org]

Logentry Text:
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We had good and stable beam for physics during early day shift. At 10:00 MCC took over to conduct various tests(https://logbooks.jlab.org/entry/4375125) which lasted till 23:00. Right after we started beam recovery and could start physics data ~00:40 in Owl shift. The data taking could lasted only 2 hours. We lost 1 hour of beam due to some CODA crashes and misunderstanding between GEM Expert and SL. Another 25 minutes of data was collected just before MCC took over to perform their own test(halo issue in Hall B). 

MCC started restoring the beam to Hall at 5:25 followed by beam recovery which extended till 7:00. Just as we were ready to restart production, beam went away for maintenance day.

During the down time an escorted access was made by GEM group to investigate/fix the issue on layer 1. They could identify the issue ("loose connection between valve and pipe") and fixed it(https://logbooks.jlab.org/entry/4374600). we can see the normal behavior of the chamber here (https://logbooks.jlab.org/entry/4374957)

We are in controlled access and ECal, HCal, GEM and DAQ groups are accessed/accessing the hall.

Shift summary:
Day: https://logbooks.jlab.org/entry/4374381
Swing: https://logbooks.jlab.org/entry/4374595
Owl: https: https://logbooks.jlab.org/entry/4374815

Details of RC summary can be found at:https://sbs.jlab.org/wiki/index.php/RC_meeting_and_Run_Plan,_Wednesday,_May_14th

To discuss the updates and the upcoming plan, we will have RC meeting at 1:00 pm today on the second floor of Counting house and via zoom: https://jlab-org.zoomgov.com/j/1616220064
Meeting ID: 161 622 0064
Passcode: 314159


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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/4375217
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