Difference between revisions of "WAC Notes July 18 2019"
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=== Slug 5: 70 uA production - Test Swing Shift === | === Slug 5: 70 uA production - Test Swing Shift === | ||
Data was recovered from 3424, 3429, and 3430 current ramp runs with better beam current lower limit cut | Data was recovered from 3424, 3429, and 3430 current ramp runs with better beam current lower limit cut | ||
| − | * | + | * Bad/Current Ramp: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3424_000/run3424_000_all.pdf 3424] - Aq FB was insufficient as this was a current ramp |
* Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3425_000/run3425_000_all.pdf 3425] | * Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3425_000/run3425_000_all.pdf 3425] | ||
* Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3426_000/run3426_000_all.pdf 3426] | * Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3426_000/run3426_000_all.pdf 3426] | ||
* Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3427_000/run3427_000_all.pdf 3427] | * Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3427_000/run3427_000_all.pdf 3427] | ||
* Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3428_000/run3428_000_all.pdf 3428] | * Good: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-17/run3428_000/run3428_000_all.pdf 3428] | ||
| − | * | + | * Bad/Current Ramp: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3429_000/run3429_000_all.pdf 3429] - Aq FB was insufficient as this was a current ramp |
| − | * | + | * Bad/Current Ramp: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3430_000/run3430_000_all.pdf 3430] - Aq FB was insufficient as this was a current ramp |
* Calibration: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3431_000/run3431_000_all.pdf 3431] | * Calibration: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3431_000/run3431_000_all.pdf 3431] | ||
* Calibration: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3432_000/run3432_000_all.pdf 3432] | * Calibration: [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-18/run3432_000/run3432_000_all.pdf 3432] | ||
Revision as of 16:26, 10 October 2019
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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 - Test Swing Shift
Data was recovered from 3424, 3429, and 3430 current ramp runs with better beam current lower limit cut
- Bad/Current Ramp: 3424 - Aq FB was insufficient as this was a current ramp
- Good: 3425
- Good: 3426
- Good: 3427
- Good: 3428
- Bad/Current Ramp: 3429 - Aq FB was insufficient as this was a current ramp
- Bad/Current Ramp: 3430 - Aq FB was insufficient as this was a current ramp
- Calibration: 3431
- Calibration: 3432
Slug 6: 50 uA Production - Stable Owl Shift
Lots of production, only 1 major problem (lost run 3533 with 9k muls due to blinder fail from EPICs fastlogger and Compton IOC)
- Calibration: 3433
- Good: 3434
- Good: 3435
- Good: 3436
- Good: 3437
- Good: 3438
- Good: 3439
- Good: 3440
- Good: 3441
- Good: 3442
- Good: 3443
There is a gap here in run number, as the intervening PQB studies flipped the HWP state without being accounted properly the first time (and the following IHWP out runs are 1 arm only)
Slug 7: 50 uA Production - During PQB Beam Studies
Slug 8: 50 uA Production - Truncated Swing Shift
Caryn changed the IHWP state to IN
- Good: 3453
- Good: 3454
- Good: 3455 - RQ2 tripped off
- Next: access, and PQB to follow at low current, then Moller, then DAQ, then another access for magnets
- Runs 3456 -> are slug 8
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.
- No beam: 3449
- 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
- Caryn updated the Main Det and SAM pedestals from the current scans, for 50 uA and 70 uA data:
- Here, noted Here
- New Pedestal Map for 70 uA 3424-3430 => prex_sam_pedestal.3424-3430.map, prex_maindet_pedestal.3424-3430.map
- New Pedestal Map for 50 uA 3456- => prex_sam_pedestal.3456-.map, prex_maindet_pedestal.3456-.map
- Also changed retroactively from 3398- the prex_sam_pedestal.3398-.map to match prex_sam_pedestal.3456-.map 50 uA pedestals
Issues
- Needed nominal - 15 uA BCM lower limit cut.
- Need BPM stability/burp/holdoff kind of cut to save some strange noise in 3403, 3404, and some PQB runs this afternoon.
- It looks like there is non-symmetry between arms (before RQ2 failed)
Other Status Updates
- PQB runs in the afternoon need more in depth (BPM cut) analyzing - see notes
- S0 Removed - midway through slug 8... but at least we know when (run 3456 is the production run it happens after)
