Monday April 7

Updates from the weekend

Friday

Shifts cancelled. Saturday owl, duck, day on standby
11am A leak of environmentally hazardous water from the accelerator was found, and fixed.
2pm Magnet issue was found, and fixed.

Saturday

10am harp scan looked great!
Shifts resumed at noon.
Vacuum pump stopped in the tagger hall. Scot mended it (I think he replaced a control board).
3pm beam tuning started, continued intermittently through swing and into owl shifts (2 issues w RF cavities caused delays)
Shift summaries: day swing

Sunday

During owl shift, the ion chamber calibrations and some radiation levels checks were completed.
Early day shift, Hovanes arrived to commission the new profiler. This went very well until he left. The beam was locked on the profiler and all looked good; MCC took the beam away to set up hall B. When beam was restored some hours later, the profiler readings were extremely erratic, so we switched the lock back to 5c11B. Turns out that this was due to not quite enough HV on the profiler.
Richard set up the A.C. We can now lock on 5C11B and AC.
Radiation level checks were completed.
Sasha switched off the low E TAGH counters and provided some initial DAQ config files.
Hovanes completed the profiler scan.
Richard started the TAGM setup.
Overnight we hope to collect the detector checkout data and maybe CDC HV scans.
Shift summaries: owl day swing

BTA epics script not working - Hovanes requested the old one back.
Not sure if the DAQ config is ok or not - there were problems with rocs at the end of the run.
RCDB website is not accessible from the gluon browsers, blocked by firewall.
Rootspy issues - TRD histo was not working properly, eLog entries need to specify the run number.
Shift primer is out of date - JTAB menu has gone.

Past 24h

Harp problem caused no beam - fix was attempted but found to have failed. MCC eventually abandoned attempts to steer beam without it, need to consult experts.
Hall D had to be swept because the outer door was not closed properly. PSS box "Lockdown/PSS safe". Maybe it bounced back after slamming.
Persistent disconnect alarms from switched off crates are a nuisance. Please inform shift-takers.

Past 24h: no beam.