[Halld] [EXTERNAL] Run Coordinator summary, Dec 4-10

[Naomi Jarvis]

Dear Collaborators,

During this week we continued with start-up stages of running, and then the
DIRC commissioning.  During Wednesday and Thursday HV scans were
performed for the tagger microscope, TOF and CDC and the general detector
checkout was performed.  We collected straight track data with the DIRC and
the TRD/GEM detectors, with a special trigger in which only the region of
FCAL immediately behind the TRD/GEM was used, and with the TRD/GEM in 3
different positions.  On Friday the solenoid was ramped up and we continued
to collect data with DIRC and TRD/GEM.  There were many problems with
software related to the various recent upgrades, Redhat7 and CODA. Sergei
spent a lot of time working with the CODA group to debug the software and
it seems to be running much more smoothly now. There is an ongoing issue
with RCDB not updating during the run, this is being worked on.  The
diamond alignment software also required some work.  Unfortunately much of
the weekend data was lost during data transfer out of the counting house,
and then on Monday morning at 5:30 a vacuum fault in the accelerator
prevented delivery of beam until midnight on Tuesday. This provided an
opportunity for access to replace faulty boards in the FCAL crate,
troubleshoot the PS power supply, replace FCAL bases, etc, and also time
for working on the DAQ and trigger setup.  We are now continuing to collect
DIRC commissioning data; early results posted in the logbook look very
encouraging.

For the day-to-day account, see the 'previous x hours' section at the top
of each day
https://halldweb.jlab.org/wiki/index.php/Run_Planning_Meeting_Notes,_Dec_5-Dec_11,_2019

The new RC is Bill Li.

Best regards,
Naomi Jarvis
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