Difference between revisions of "WAC Notes July 21 2019"
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== Non-Production Runs and Bad Runs == | == Non-Production Runs and Bad Runs == | ||
* Calibration - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-20/run3523_000/run3523_000_all.pdf 3523]: Aggressive Aq scan | * Calibration - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-20/run3523_000/run3523_000_all.pdf 3523]: Aggressive Aq scan | ||
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* Junk - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3542_000/run3542_000_all.pdf 3542]: start of slug, empty | * Junk - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3542_000/run3542_000_all.pdf 3542]: start of slug, empty | ||
* Junk - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3544_000/run3544_000_all.pdf 3544]: [https://logbooks.jlab.org/entry/3707685 BPM saturation] | * Junk - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3544_000/run3544_000_all.pdf 3544]: [https://logbooks.jlab.org/entry/3707685 BPM saturation] | ||
Latest revision as of 16:51, 10 October 2019
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PREX Main << Weekly Analysis Coordinator << WAC Notes << Instructions
WAC Notes July 20 2019 << >> WAC Notes July 22 2019
July 21 2019
Slug 9/10
- No Right Arm
- Changed to an_ds1 normalizing BCM
- Still working on pedestals
- S0 Out
- IHWP Out 9 - 3520-3541
- IHWP In 10 - 3542-35-63
Production Run List Swing 2019-07-20/ Owl 21
Start Slug 9 on 3520, junk until 3522
- Calibration - 3523: Aggressive Aq scan
- Calibration/Good - 3524: IA scan - after cuts its good
- Good - 3525: begin production proper
- Good - 3526
- Good - 3527
- Good - 3528
- Good - 3529
- Good - 3530: first 30k events have a beam excursion, this begins a 4 run long beam motion problem that affects the position locks/energy lock (due to FFB being off apparently - see HALOG)
- Good - 3531
- Good - 3532: Noticeable 12 X beam trip recovery issues
- Good - 3533: Halog - End of the long BPM 12 X wandering journey that changed regression slopes
- Good - 3534: Back to normal
- Good - 3535
- Good - 3536
- Good - 3537
- Good - 3538: Trippy beam... OK
- Good - 3539
- Good - 3540: BPM movement... OK
- Good - 3541
Production Run List Owl 2019-07-21
Start Slug 10 on 3542, junk 3542
- Junk - 3542: start of slug, empty
- Good - 3543
- Junk - 3544: BPM saturation
- Good - 3545: BPM saturation resolved
- Good - 3546
- Good - 3547
- Good - 3548: beam movement - begins a large excursion
- Good - 3549: beam movement - ends a large excursion
- Good - 3550
- Good - 3551
- Good - 3552
- Good - 3553: Watch out - very short
- Good - 3554
- Good - 3555: To mitigate beam movement - Perpetually on FFB now - looks good, other than broader BPM Y widths and 4eX looks noisier than its complement
- Good - 3556
- Good - 3557: Double peaked BCMs - 250-300 ppm widths, 0.4 ppm mean Aq
- Good - 3558: "" , 0.1 ppm mean Aq
- Good - 3559: BCM still wide
- Good - 3560: 220 ppm Aq width, 0.4 mean Aq, cuts worked
- Good - 3561
- Good - 3562
- Good - 3563: bcm looks good again now
Non-Production Runs and Bad Runs
- Calibration - 3523: Aggressive Aq scan
- Junk - 3542: start of slug, empty
- Junk - 3544: BPM saturation
Pedestal/Calibrations Updates
- Need to update the other BCMs with prior 50 uA pedestals from Caryn
