Run Coordinator report: Spring 2018 r7
From GlueXWiki
- Accomplishments
- Production running (1350 A, thick diamond); Feb 21-28: 12.4 billion triggers // Total to date: 63.5 billion (67% of goal)
- Muon MWPC studies carried out (radiator and noise)
- nA BPM work by John Musson et al advanced significantly
- BANU Picture
- Solenoid dump (~5.5 hours)
- Active Collimator failure (~7 hours)
- Tagger Fake Fire Alarm (50 min)
- Tagger Dipole trip (20 min)
- DAQ issues (1-2 hrs)
- Goniometer restart (30 min)
- Routine polarization changes (~80 min per day total)
- Issues
- Accelerator: 5C11 beam oscillations. Still assessing effects on our detectors
- Hall D
- Active Collimator failure; Beam Profiler used for about a day; AC repaired
- Routine FCAL base repair/replacement during opportunistic access
- Solenoid dump (5hrs beam loss) due to PLC communications & PXI chassis: ramp up partly during RF recovery; time mitigated by advancing our thin diamond scan
- Plans Ahead
- Production, 1350 A solenoid, thick diamond (58 μm) to ~95 billion triggers
- Routine daily HARP scans; feedback to MCC on beam focusing
- Swing shift today: luminosity scan 90-300 nA on different radiators.
- nA BPM tests: Beam Profiler, low current, check rates. J.Musson: Mar 1 or 2?
- Thin diamond (17 μm) runs on Mar 7
- Empty target runs (once every 2 weeks) - next one on Feb 28
- TAC runs/tests on Mar 9
- Fast raster beam characterization on Mar 9