[Rgc] [Revised Logentry] RC Daily Summary

jpoudel at jlab.org jpoudel at jlab.org
Sun Jul 17 09:50:03 EDT 2022


Logentry Text:
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----- Saturday Day Shift (07/16/2022) -----
Continued data taking with NH3 target @4nA beam current, pretty smooth
Day shift summary by Daniel Carman: https://logbooks.jlab.org/entry/4016290
Total data accumulated during this shift with NH3 target: ~ 135 M events (+ve target polarization & HWP-OUT)

----- Saturday Swing Shift (07/16/2022)-----
Continued data taking with NH3 target @4nA
Beam was unstable after 6 pm due to bad weather, so asked to stop beam to Hal B at 6:30 pm
Target polarization reversal started after 6:30 pm https://logbooks.jlab.org/entry/4016446, overlapping with downtown due to thunderstorm https://logbooks.jlab.org/entry/4016458 and south access building temperature https://logbooks.jlab.org/entry/4016469
Target polarization reversal took more than 4 hrs staring from +60% to reach -50% https://logbooks.jlab.org/entry/4016621
Trigger configuration was not as expected for Q2 cut, so Ben Raydo changed it again which became effective from run 16335 https://logbooks.jlab.org/entry/4016476
Swing Shift Summary by Dilini Bulumulla: https://logbooks.jlab.org/entry/4016411
Total data accumulated during this shift with NH3 target: ~  3 M events (+ve target polarization & HWP-OUT), 7 M events (-ve target polarization more than 50% & HWP-OUT)

----- Sunday Owl Shift (07/17/2022) -----
Continued data taking with NH3 target @4nA, pretty smooth
Owl Shift Summary by Nicholas Zachariou: https://logbooks.jlab.org/entry/4016489
Total data accumulated during this shift with NH3 target: ~ 108 M events (-ve target polarization more than 50% & HWP-OUT)

Plans ahead:
Continue data taking with NH3 target -ve polarization @4nA beam current. (late swing shift: insert HWP IN)

Issue:
Beam current is not stable and start to decreases slowly. Need to keep eyes open!!

I think it's good to have RC meeting at 2:00 pm today. I will announce it later.

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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/4016643
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