[Hallc_running] [New Logentry] RC summary Oct 22, 2022

[shujie at jlab.org]

Logentry Text:
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It has been a very peaceful day for Hall C. We finished setting 2 and are half way through setting 3.
The beam quality was in general good (partially b/c Hall A is offline, sorry). There are definitely more trips at high current (60uA). MCC will have meeting to address beam stability tomorrow.
CODA crashed a few times but the shift workers were able to bring it back without bothering experts. https://logbooks.jlab.org/entry/4066533, https://logbooks.jlab.org/entry/4066709
There were a couple of yellow alarm on magnets cryogen, hopefully they will be fixed at next hall access. https://logbooks.jlab.org/entry/4065555

After the UNSER controller replacement on Oct 19th, we got a spike on UNSER (H05) temperature every time the target moved. Dave Gaskell and I checked the BCM gain ratio of 04C vs BCM-C (which is in the same envelope with UNSER). We didn't see any big change over time. So for now it's just a minor feature. https://logbooks.jlab.org/entry/4066193  We emailed Dave Mack and Tony Cruz and waiting for their insights. 

No special plan for today, and no RC meeting. Happy weekend!

-Shujie






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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/4066762
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