Difference between revisions of "WAC Notes July 22 2019"

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(Non-Production Runs and Bad Runs)
 
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[[Main_Page|<B>PREX Main</B>]] << [[Weekly Analysis Coordinator]] << [[WAC|Instructions]]
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[[Main_Page|<B>PREX Main</B>]] << [[Weekly Analysis Coordinator]] << [[WAC Notes]] << [[WAC|Instructions]]
 
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[[WAC Notes July 21 2019]] << >> [[WAC Notes July 23 2019]]
 
[[WAC Notes July 21 2019]] << >> [[WAC Notes July 23 2019]]
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* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3569_000/run3569_000_all.pdf 3569]
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3569_000/run3569_000_all.pdf 3569]
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3570_000/run3570_000_all.pdf 3570]: Aq ~ 0.5 ppm
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3570_000/run3570_000_all.pdf 3570]: Aq ~ 0.5 ppm
* Blinder failed, needs cuts - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3571_000/run3571_000_all.pdf 3571]: Needs cuts to recover
+
* Good - Blinder failed, needed cuts - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3571_000/run3571_000_all.pdf 3571]: Needs cuts to recover - got its cuts and its good
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3572_000/run3572_000_all.pdf 3572]
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3572_000/run3572_000_all.pdf 3572]
* Needs cuts - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3573_000/run3573_000_all.pdf 3573]: Charge feedback went off for some events - needs cuts
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* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3573_000/run3573_000_all.pdf 3573]: Charge feedback went off for some events - needs cuts - it got its cuts and is OK now
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-22/run3574_000/run3574_000_all.pdf 3574]: BPM 12 slips during FFB off times
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-22/run3574_000/run3574_000_all.pdf 3574]: BPM 12 slips during FFB off times
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-22/run3575_000/run3575_000_all.pdf 3575]
 
* Good - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-22/run3575_000/run3575_000_all.pdf 3575]
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* Dangerous Junk - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3564_000/run3564_000_all.pdf 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 - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3564_000/run3564_000_all.pdf 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 - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3565_000/run3565_000_all.pdf 3565]:  ""
 
* Dangerous Junk - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3565_000/run3565_000_all.pdf 3565]:  ""
* Blinder failed, needs cuts - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3571_000/run3571_000_all.pdf 3571]: Needs cuts to recover
+
* Good - Blinder failed, needed cuts - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3571_000/run3571_000_all.pdf 3571]: Needs cuts to recover - fixed
* Needs cuts - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3573_000/run3573_000_all.pdf 3573]: Charge feedback went off for some events - needs cuts
+
* Good - Needed cuts - [https://hallaweb.jlab.org/parity/prex/onlinePlots/summary/2019-07-21/run3573_000/run3573_000_all.pdf 3573]: Charge feedback went off for some events - needs cuts - fixed
  
 
== Pedestal/Calibrations Updates ==
 
== Pedestal/Calibrations 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
 +
** [https://logbooks.jlab.org/entry/3708315 Panguin as a test, 20x longer on adaq1, ps says its in nfs_wait mode]
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** [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)
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** https://logbooks.jlab.org/entry/3708226, https://logbooks.jlab.org/entry/3708217, https://logbooks.jlab.org/entry/3708222
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* Caryn is working on pedestal studies
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** [https://logbooks.jlab.org/entry/3708263 3708263]
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* Caryn is also working on investigating Aq double peaking in the injector
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** [https://logbooks.jlab.org/entry/3708239 3708239]
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** [https://logbooks.jlab.org/entry/3708254 3708254]
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* No beam all day due to LCW leak in west arc: [https://logbooks.jlab.org/entry/3708161 HALOG]
  
== Other Status Updates ==
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== New Cuts ==
* [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
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Applying detector Volts/uA cut to remove HV trips (LHRS 3564-3565) globally, and Quad mistunes and non-normalization (Slug 8->) locally
 +
* [https://logbooks.jlab.org/entry/3708414 HALOG]
 +
Looking at the effect of global, generous position yield cuts
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* [https://logbooks.jlab.org/entry/3708427 HALOG]
  
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== 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'''
 +
* 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]
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* [https://logbooks.jlab.org/entry/3708373 LHRS Counting Mode analyzer has major slowness]
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** [https://logbooks.jlab.org/entry/3708382 It seems to be spending too much time in tracking]
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** [https://logbooks.jlab.org/entry/3708393 Maybe a bad line in a db file?]
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** [https://logbooks.jlab.org/entry/3708396 Actually it looks like the data itself is somehow difficult to parse / bad electronics], or [https://logbooks.jlab.org/entry/3708406 some kind of power supply noise?]
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** [https://logbooks.jlab.org/entry/3708437 Bob checks the electronics and it doesn't seem to be that... software/aonl?]
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** Its in [https://logbooks.jlab.org/entry/3708444 PODD]/[https://logbooks.jlab.org/entry/3708557 the VDCs] both!!
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* Catherine has gone through permutations of BPM regression sets and has found that 11X is superior to 12X: [https://logbooks.jlab.org/entry/3708381 HALOG], [http://ace.phys.virginia.edu/HAPPEX/3845 HAPLOG]
 +
* [https://logbooks.jlab.org/entry/3708400 The RQ2 has some issues, largely to do with accumulated condensed/depositted/melted water around the quench detection circuit]
  
  
 
[[Category:WAC]]
 
[[Category:WAC]]

Latest revision as of 20:37, 30 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
  • Good - Blinder failed, needed cuts - 3571: Needs cuts to recover - got its cuts and its good
  • Good - 3572
  • Good - 3573: Charge feedback went off for some events - needs cuts - it got its cuts and is OK now
  • 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: ""
  • Good - Blinder failed, needed cuts - 3571: Needs cuts to recover - fixed
  • Good - Needed cuts - 3573: Charge feedback went off for some events - needs cuts - fixed

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