WAC Notes July 25 2019
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PREX Main << Weekly Analysis Coordinator << WAC Notes << Instructions
WAC Notes July 24 2019 << >> WAC Notes July 26 2019
July 25 2019
Production Run List
Start Slug 13, IHWP OUT Flip Right, FFB on always
- Since we are using bcm_dg_ds, the width in the bcm is ~1.5X of what we used to have with bcm_an_ds3
- Good - run3622
- Good - run3623
- Good - run3624
- Suspicious - run3625
- Mini-run 0 has too large detector widths->Fixed after bad_event_cut
- Good - run3626
- Suspicious - run3628
- Suspicious - run3629
- Aq mean is too large
- Test run HALOG
- Suspicious - run3630
- Detector widths are fluctuating between mini-runs.
- Suspicious - run3631
- Detector widths become worse
- Beam position change
- Beam current fluctuating
- Normalized detector yield is decreasing over time
- Suspicious - run3632
- Regressed detector widths are even higher
- Normalized detector yield is decreasing over time
- Regressed detectors are correlated
- Suspicious - run3633
- Normalized detector yield is increasing over time (opposite to run3632)
- Suspicious - run3634
- Suspicious - run3635
- Suspicious - run3636
- Long beam trip during the run
- Normalized detector yield is decreasing again
Non-Production Runs and Bad Runs
Pedestal/Calibrations Updates
Issues
- There were many pedestal and event cut problems. From now on, when an event cut isn't absolutely necessary it should be removed - see japan source code for reference of cuts here
- The BCM appears to be falling apart. We are fixing it and running slug 12 on BCM DG DS in the meantime.
- BPM 4ec had intermittant problems (iocse10 has issues) and so we are regressing with 4e again. BPM 11X is ok and stays in regression.
- Increase in Detector widths and Collimator temperature HALOG COLLIMATOR HALOG
- Increase in collimator temperature and raising neutron dose HALOG
- The increase in detector widths started from late Swing Shift HALOG
- Cavity BPM lock change HALOG
