Difference between revisions of "WAC Notes July 18 2019"
From PREX Wiki
Jump to navigationJump to search| Line 53: | Line 53: | ||
* Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3454_000/run3454_000_all.pdf 3454] | * Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3454_000/run3454_000_all.pdf 3454] | ||
* Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3455_000/run3455_000_all.pdf 3455] - RQ2 tripped off | * Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3455_000/run3455_000_all.pdf 3455] - RQ2 tripped off | ||
| + | |||
| + | End of slug 7 -> [https://logbooks.jlab.org/entry/3706448 Removed S0] -> should have a tiny ~1% effect on widths now | ||
== Non-Production Runs and Bad Runs == | == Non-Production Runs and Bad Runs == | ||
Revision as of 19:33, 18 July 2019
| Documentation |
| HOW TOs for shift crew |
| Expert Tools |
| All Expert Contacts |
PREX Main << Weekly Analysis Coordinator << Instructions
WAC Notes July 17 2019 << >> WAC Notes July 19 2019
July 18 2019 all 3 Shifts
Slug 5: 70 uA production
Data was recovered from 3424, 3429, and 3430 current ramp runs with better beam current lower limit cut
Slug 6: 50 uA Production
Lots of production, only 1 major problem (lost run 3533 with 9k muls due to blinder fail from EPICs fastlogger and Compton IOC)
- Good: 3434
- Good: 3435
- Good: 3436
- Good: 3437
- Good: 3438
- Good: 3439
- Good: 3440
- Good: 3441
- Good: 3442
- Good: 3443
Slug 7: 50 uA Production
- Good: 3444
- Good: 3445
- Good: 3446 - double difference in BCM returns with vengence
- Good: 3447
- ???: 3449
- BPMs moving, needs cuts: 3450
- ???: 3451
- ???: 3452
- Good: 3453
- Good: 3454
- Good: 3455 - RQ2 tripped off
End of slug 7 -> Removed S0 -> should have a tiny ~1% effect on widths now
Non-Production Runs and Bad Runs
- Died (blinder needs fixing): [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3433_000/run3433_000_all.pdf 3433
- Some PQB Calibration: 3448 - too short and noisy, and already labelled as calibration.
- RQ2 dead and PQB commences at low current:
Pedestal/Calibrations Updates
In order to salvage current ramps and trips on large chunks of data and save time/save the regression/pedestal usefulness:
- Change the lower limit current cut to be nominal-15 uA (35 for 50 uA, 55 for 70 uA)
- Updating the event cuts to have nominal-15 uA beam current lower cut Starting at run 3456 (now) and also setting specifically for 3 70 uA current ramp runs 3424, 3429, 3430 (suspect Aq, but worth a try)
- 50 uA: prexCH_beamline_eventcuts.2948-.map -> prexCH_beamline_eventcuts.3456-.map (pending beam...)
- 70 uA: prexCH_beamline_eventcuts.2948-.map -> prexCH_beamline_eventcuts.[3424,3429,3430].map
- Follow up - cut on current at nominal - 15 uA -> applied to current ramp runs
Issues
Other Status Updates
PQB runs need analyzing - see notes
