Difference between revisions of "WAC Notes July 22 2019"

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(Other Status Updates)
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== Issues ==
 
== Issues ==
 
* There is slowness in the computer system - Ole thinks it has to do with a combination of heavy ethernet load, heavy Cache usage, and a poorly calibrated Scheduler
 
* There is slowness in the computer system - Ole thinks it has to do with a combination of heavy ethernet load, heavy Cache usage, and a poorly calibrated Scheduler
 +
** [https://logbooks.jlab.org/entry/3708315 Panguin as a test, 20x longer on adaq1, ps says its in nfs_wait mode]
 +
** [https://logbooks.jlab.org/entry/3708324 logging all users out seems to fix it] - (Cameron's theory is that ctrl+Z's processes were laying around everywhere and were occupying nfs file system attention that shouldn't have been)
 
** https://logbooks.jlab.org/entry/3708226, https://logbooks.jlab.org/entry/3708217, https://logbooks.jlab.org/entry/3708222
 
** https://logbooks.jlab.org/entry/3708226, https://logbooks.jlab.org/entry/3708217, https://logbooks.jlab.org/entry/3708222
 
* Caryn is working on pedestal studies
 
* Caryn is working on pedestal studies
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** [https://logbooks.jlab.org/entry/3708239 3708239]
 
** [https://logbooks.jlab.org/entry/3708239 3708239]
 
** [https://logbooks.jlab.org/entry/3708254 3708254]
 
** [https://logbooks.jlab.org/entry/3708254 3708254]
 +
* No beam all day due to LCW leak in west arc: [https://logbooks.jlab.org/entry/3708161 HALOG]
  
 
== New Cuts ==
 
== New Cuts ==
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== Other Status Updates ==
 
== Other Status Updates ==
* [https://hallaweb.jlab.org/parity/prex/onlinePlots/slug/slug_list/Charge_Monitor-2019-07-22.pdf Accumulated charge] = 11.33 Coulombs, 1.03 x PREX 1 statistical error bar
+
* '''[https://hallaweb.jlab.org/parity/prex/onlinePlots/slug/slug_list/Charge_Monitor-2019-07-22.pdf Accumulated charge] = 11.33 Coulombs, 1.03 x PREX 1 statistical error bar'''
 
* Slug 11 is the final with the old PREX 1 quartz - from here on we are using different quartz: [https://logbooks.jlab.org/entry/3708281 HALOG]
 
* Slug 11 is the final with the old PREX 1 quartz - from here on we are using different quartz: [https://logbooks.jlab.org/entry/3708281 HALOG]
* Major slowness in adaq1 investigation
 
** [https://logbooks.jlab.org/entry/3708315 Panguin as a test, 20x longer on adaq1, ps says its in nfs_wait mode]
 
** [https://logbooks.jlab.org/entry/3708324 logging all users out seems to fix it] - (Cameron's theory is that ctrl+Z's processes were laying around everywhere and were occupying nfs file system attention that shouldn't have been)
 
 
* [https://logbooks.jlab.org/entry/3708373 LHRS Counting Mode analyzer has major slowness]
 
* [https://logbooks.jlab.org/entry/3708373 LHRS Counting Mode analyzer has major slowness]
 
** [https://logbooks.jlab.org/entry/3708382 It seems to be spending too much time in tracking]
 
** [https://logbooks.jlab.org/entry/3708382 It seems to be spending too much time in tracking]

Revision as of 23:12, 22 July 2019

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PREX Main << Weekly Analysis Coordinator << WAC Notes << Instructions

WAC Notes July 21 2019 << >> WAC Notes July 23 2019

July 22 2019

Production Run List Swing 2019/07/21 - 2019/07/22 Owl

Start Slug 11, IHWP Out, FFB on always, no RHRS on 3564, junk until 3566

  • Dangerous Junk - 3564: HVs off on left arm - don't analyze, as it will confuse and reveal blinder due to bad pedestals/null signal/blinding confusion
  • Dangerous Junk - 3565: ""
  • Good - 3566: Begin production on slug 11, bcm width is quite large - 200 ppm, and minirun 4 has 185 USL ppm width, which is inexplicable as far as I can tell
  • Good - 3567: large beam trip at end, BCM width got better this run
  • Good - 3568
  • Good - 3569
  • Good - 3570: Aq ~ 0.5 ppm
  • Blinder failed, needs cuts - 3571: Needs cuts to recover
  • Good - 3572
  • Needs cuts - 3573: Charge feedback went off for some events - needs cuts
  • Good - 3574: BPM 12 slips during FFB off times
  • Good - 3575
  • Good - 3576

Non-Production Runs and Bad Runs

  • Dangerous Junk - 3564: HVs off on left arm - don't analyze, as it will confuse and reveal blinder due to bad pedestals/null signal/blinding confusion
  • Dangerous Junk - 3565: ""
  • Blinder failed, needs cuts - 3571: Needs cuts to recover
  • Needs cuts - 3573: Charge feedback went off for some events - needs cuts

Pedestal/Calibrations Updates

Issues

New Cuts

Applying detector Volts/uA cut to remove HV trips (LHRS 3564-3565) globally, and Quad mistunes and non-normalization (Slug 8->) locally

Looking at the effect of global, generous position yield cuts

Other Status Updates