[Hallc_running] [New Logentry] Run status and no RC meetings over the holiday weekend

jones at jlab.org jones at jlab.org
Sat Jan 18 10:20:01 EST 2020

Logentry Text:
During Friday morning MCC did some RF recovery ( about one hour) and then studies to reduce beam losses
which were causing a high trip rate and only allowing 5-10 uA in Hall C the previous night.

Around Friday noon, beam was back. The current was up to 30uA , though the trip
rate was fairly high. Gradually through late DAY and early swing MCC was able to reduce the
trip rate. Over OWL, we had 30uA and the trip rate was much better. 

Jay posted as summary of what had be done at https://logbooks.jlab.org/entry/3766297.

Moller measurement is presently ( started around 8:30 on Sat) ongoing. It will probably
take until 12:30 to 1:00.

We are staying at this kinematics for a long time. So be vigilant in responding to the alarm handler and
monitor the target.

There will not be a RC meeting on Sat, Sun or Monday (lab holiday), if running stays smooth.

We are letting Hall A determine the  insertable half wave plate IN/OUT status. Just stop and start runs
before and after the IHWP is changed is requested.

We are doing NMR measurements every 2 hours.


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/3766371
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