[Hallc_running] [New Logentry] RC daily summary

[hszumila at jlab.org]

Logentry Text:
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We continued production on 40Ca over the past 24 hours. We had an instance yesterday morning where the SHMS daq event rate dropped to 0 mid-run, and the replays were showing missing calorimeter information (see https://logbooks.jlab.org/entry/4124251). Rebooting the SHMS daq with the wiki instructions (https://hallcweb.jlab.org/wiki/index.php/Hall_C_DAQ#If_you_need_to_reboot_a_ROC) brought everything back with no issue. We lost beam for a bit yesterday afternoon, and after coming back, the beam struggled with a high trip rate at 40 uA. Late on swing/early owl, we were reduced to 30 uA where the beam was more stable. Around 6:30 this morning, Ops thinks they found a solution to make the beam more stable for us at 40 uA (see https://logbooks.jlab.org/entry/4124780). We are only at about half stats (~1200 counts) on the 40Ca target, but we are going to change to 3He to proceed with the second cycle through the targets. 

RF recovery is schedule for Tuesday day shift. Please contact me for access if you haven't already so I can get you on the list. 

Thank you to Bill and Zoe for taking the next two owl shifts! We still have open owl shifts starting Wednesday morning onward. Please sign up!!

No RC meeting today. 

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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/4124853
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