[Halla_running] [EXTERNAL] RC Update February 11th
Sean Jeffas
sj9ry at virginia.edu
Sat Feb 11 14:07:06 EST 2023
We have run production on He3 almost continuously since yesterday. MCC has
had to lower the beam current a few times but mostly it has been at 45 uA.
Since yesterdays RC meeting we have collected 2C of beam charge and Fringe
is giving us ~53% polarization in beam!
Issues:
We are still waiting for a down time to rix the dead blocks in BBCal.
Jiwan noticed some readback issues with the HCal HV, but the HV is still
working fine and there is no effect on data. Jiwan will access the hall at
the next opportunity to power cycle the crate and fix this issue.
https://logbooks.jlab.org/entry/4128412
There were a couple DAQ resets but overall not more than one hour of beam
time lost. We will continue running 45 uA on He3 through the weekend. We
will not have a meeting today since things are running well. Feel free to
contact me if anything needs to be discussed.
Best,
Sean
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