[Hallc_running] [Revised Logentry] RC Summary June 27

[hauenst at jlab.org]

Logentry Text:
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Yesterday, we moved SHMS and HMS to 13.5 degrees. For the SHMS move we had to decable the GEMs, move it on the target platform and cable it. This was done successfully without any problems.
Furthermore, Hanjie updated the VTP firmware with the recent changes from HallA which should increase the DAQ stability and get rid of PEB crashes (https://logbooks.jlab.org/entry/4406033).

Also vaccuum pump for the can was kept running (https://logbooks.jlab.org/entry/4406155) over night to improve the can vacuum. It will be removed today.
We got beam back around 3 pm and took about 12h of ABUs on hydrogen at 0.6 and 0.3uA beam current

Around 7:45 Dave Meekings starting emptying the target and we took Carbon multifoil (+/- 10cm) in the mean time. This was completed around 8:30am (https://logbooks.jlab.org/entry/4406679).
Since 9am we are running on empty at 1.5uA since the GEMs and LAD tripped at 1.9uA (https://logbooks.jlab.org/entry/4406705)


Plan for the day:
===============
Take 2h empty target runs
11:00 Survey the hall and bring to controlled access for several hours for target change
walkthrough by Sam at 1:30pm
Move HMS back to 17 degrees.
Heidi and Larry will remove pump and check can vacuum
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We will have our regular RC Meeting today at CH conference Room and via zoom ( https://logbooks.jlab.org/entry/4346862)
The online information is here: https://hallcweb.jlab.org/wiki/index.php?title=June_27,_2025

Many Thanks to our shift takers for their hard work. We still need shift crews for Sunday Owl shift. Please consider signing up if you are available.
Shift Sign Up link: https://misportal.jlab.org/mis/physics/shiftSchedule/index.cfm?experimentRunId=HALLC-LAD

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Day Shift June 26:
Summary:https://logbooks.jlab.org/entry/4405984
BTA: https://logbooks.jlab.org/entry/4406263
Magnets: https://logbooks.jlab.org/entry/4406257
Checklist: https://logbooks.jlab.org/entry/4406255

Swing Shift June 26:
Summary: https://logbooks.jlab.org/entry/4406260
Checklist:https://logbooks.jlab.org/entry/4406405
BTA: https://logbooks.jlab.org/entry/4406454
Magnets: https://logbooks.jlab.org/entry/4406341

Owl Shift June 27:
Summary:https://logbooks.jlab.org/entry/4406476
Checklist: https://logbooks.jlab.org/entry/4406636
BTA: https://logbooks.jlab.org/entry/4406666
Magnets: https://logbooks.jlab.org/entry/4406541

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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/4406735
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