Difference between revisions of "WAC Notes July 18 2019"

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(Pedestal/Calibrations Updates)
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* Change the lower limit current cut to be nominal-15 uA (35 for 50 uA, 55 for 70 uA)
 
* 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)
 
* 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
+
** 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
 
** 70 uA: prexCH_beamline_eventcuts.2948-.map -> prexCH_beamline_eventcuts.[3424,3429,3430].map
 +
** [https://logbooks.jlab.org/entry/3706461 Follow up - cut on current at nominal - 15 uA -> applied to current ramp runs]
 +
*** 3424: Cuts out half the prior data... marginal improvements
 +
*** 3429: No effect on anything (since the beam was always at 60-70 anyway)
 +
*** 3430: Cuts out 2/3rds of the prior passing data - fixes regression!
  
 
== Issues ==
 
== Issues ==

Revision as of 18:18, 18 July 2019

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PREX Main << Weekly Analysis Coordinator << Instructions

WAC Notes July 17 2019 << >> WAC Notes July 19 2019

July 18 2019 Owl Shift

70 uA production

  • Good, Current Ramp (add cut on BCM): 3424
  • 3425
  • 3426
  • 3427
  • 3427
  • Good, Current Ramp (add cut on BCM): 3428
  • Good, Current Ramp (add cut on BCM): 3429

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)

Run list:

  • 3434
  • 3435
  • 3436
  • 3437
  • 3438
  • 3439
  • 3440
  • 3441
  • 3442
  • 3443
  • 3444
  • 3445

Production Run List (status at Midnight, end of 7/18/2019)

Non-Production Runs and Bad Runs

  • Died (blinder needs fixing): 3433

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
      • 3424: Cuts out half the prior data... marginal improvements
      • 3429: No effect on anything (since the beam was always at 60-70 anyway)
      • 3430: Cuts out 2/3rds of the prior passing data - fixes regression!

Issues

Other Status Updates