Difference between revisions of "WAC Notes December 15 2019"

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'''Daily Meeting [https://bluejeans.com/454783784 BlueJeans]'''
 
'''Daily Meeting [https://bluejeans.com/454783784 BlueJeans]'''
  
=== Production Run List - Slug 104 - pre-Production ===
+
=== Production Run List - Slug 102 - IHWP OUT - Flip RIGHT - Production ===
  
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5454_000 Run 5454] - Ca48 150uA - good elastic peak on maindet alignment now, 776 ppm combined asym width
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5455_000 Run 5455]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5456_000 Run 5456] - Definitely has a 0.3 mm BPM 12X shift that could be a problem for elastic peak separation - 400k onward cut due to excursions
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5457_000 Run 5457]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5458_000 Run 5458] - Definitely has a 1.0 mm BPM 12X drift that could be a problem for elastic peak separation and slope finding
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5459_000 Run 5459] - Definitely has a 1.0 mm BPM 12X drift that could be a problem for elastic peak separation and slope finding
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5460_000 Run 5460] - Added a BPM 4eX > 0.3mm cut to remove a small excursion
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5461_000 Run 5461]
 +
 +
=== Production Run List - Slug 103 - IHWP IN - Flip RIGHT - Production ===
 +
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5462_000 Run 5462]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5463_000 Run 5463] - still has large energy drifts
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5464_000 Run 5464] - Added a BPM 4eX > 0.3mm cut to remove a small excursion
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5465_000 Run 5465] - still has large energy drifts
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5466_000 Run 5466]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5467_000 Run 5467] - Large late BPM 12 Y shift, but not fatal on 4eY
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5468_000 Run 5468] - Cutting out 20k-120k due to unstable and trippy beam. Still has large energy drifts
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5469_000 Run 5469]
 +
 +
=== Production Run List - Slug 104 - IHWP OUT - Flip RIGHT - Production ===
 +
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5471_000 Run 5471] - still has large energy drifts
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5472_000 Run 5472] - Added a BPM 4eX > 0.3mm cut to remove a small excursion. cutting events 417000-421000, otherwise good
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5473_000 Run 5473] - still has large energy drifts
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5474_000 Run 5474] - Pedestal run, has a minirun of good data in it
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5475_000 Run 5475] - '''FFB finally turned on'''
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5476_000 Run 5476]
 
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5477_000 Run 5477] - Ca48 150uA - Cut out the first 45k events due to strong beam instability
 
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5477_000 Run 5477] - Ca48 150uA - Cut out the first 45k events due to strong beam instability
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5477_000 Run 5478] -
+
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5478_000 Run 5478]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5486_000 Run 5486] - Really large motion in BPMs for a restoration run... maybe needs a cut later
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5488_000 Run 5488]
 +
* Good - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5489_000 Run 5489] - super trippy
  
 
== Non-Production Runs and Bad Runs ==
 
== Non-Production Runs and Bad Runs ==
 
+
* Short junk - [https://prex.jlab.org/analysis/crex/index.php?run=summary/all/run5470_000 Run 5470] - Short, bad Aq, only BMOD data
  
 
== Pedestal/Calibrations Updates ==
 
== Pedestal/Calibrations Updates ==
Line 33: Line 64:
  
 
== Issues ==
 
== Issues ==
 +
 +
* Slug 102-104 have FFB issues that prevent BPM 12X from staying still - many energy drifts over this slug which will be hard to fix
  
 
* Slug 104 has FFB turn on mid way through the slug - this makes the optics/energy in the HRS more comfortable and stable
 
* Slug 104 has FFB turn on mid way through the slug - this makes the optics/energy in the HRS more comfortable and stable

Latest revision as of 11:11, 15 January 2020

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

WAC Notes December 14 2019 << >> WAC Notes January 8 2020

December 15 2019

Daily Meeting BlueJeans

Production Run List - Slug 102 - IHWP OUT - Flip RIGHT - Production

  • Good - Run 5454 - Ca48 150uA - good elastic peak on maindet alignment now, 776 ppm combined asym width
  • Good - Run 5455
  • Good - Run 5456 - Definitely has a 0.3 mm BPM 12X shift that could be a problem for elastic peak separation - 400k onward cut due to excursions
  • Good - Run 5457
  • Good - Run 5458 - Definitely has a 1.0 mm BPM 12X drift that could be a problem for elastic peak separation and slope finding
  • Good - Run 5459 - Definitely has a 1.0 mm BPM 12X drift that could be a problem for elastic peak separation and slope finding
  • Good - Run 5460 - Added a BPM 4eX > 0.3mm cut to remove a small excursion
  • Good - Run 5461

Production Run List - Slug 103 - IHWP IN - Flip RIGHT - Production

  • Good - Run 5462
  • Good - Run 5463 - still has large energy drifts
  • Good - Run 5464 - Added a BPM 4eX > 0.3mm cut to remove a small excursion
  • Good - Run 5465 - still has large energy drifts
  • Good - Run 5466
  • Good - Run 5467 - Large late BPM 12 Y shift, but not fatal on 4eY
  • Good - Run 5468 - Cutting out 20k-120k due to unstable and trippy beam. Still has large energy drifts
  • Good - Run 5469

Production Run List - Slug 104 - IHWP OUT - Flip RIGHT - Production

  • Good - Run 5471 - still has large energy drifts
  • Good - Run 5472 - Added a BPM 4eX > 0.3mm cut to remove a small excursion. cutting events 417000-421000, otherwise good
  • Good - Run 5473 - still has large energy drifts
  • Good - Run 5474 - Pedestal run, has a minirun of good data in it
  • Good - Run 5475 - FFB finally turned on
  • Good - Run 5476
  • Good - Run 5477 - Ca48 150uA - Cut out the first 45k events due to strong beam instability
  • Good - Run 5478
  • Good - Run 5486 - Really large motion in BPMs for a restoration run... maybe needs a cut later
  • Good - Run 5488
  • Good - Run 5489 - super trippy

Non-Production Runs and Bad Runs

  • Short junk - Run 5470 - Short, bad Aq, only BMOD data

Pedestal/Calibrations Updates

Issues

  • Slug 102-104 have FFB issues that prevent BPM 12X from staying still - many energy drifts over this slug which will be hard to fix
  • Slug 104 has FFB turn on mid way through the slug - this makes the optics/energy in the HRS more comfortable and stable
  • SAM 7 is updated and ATs are moved at the end of slug 103 and ATs are moved at the end of slug 104, so these are bifurcations
  • Fixed the prompt summary to report correct number of patterns: https://logbooks.jlab.org/entry/3753878
  • 12X energy shifting
    • Dispersion in the arc is measured as 0.4 MeV/mm
    • Dispersion in the HRS is 6.2 mm/MeV
    • Dithering does a 0.5 mm p2p fluctuation in 12 X -> 1.25 mm shift in the HRS Quartz
    • Normal running without FFB does 1 mm p2p fluctuations (over hour time scale) -> 2.5 mm shift in the HRS quartz
  • 5477.0 has a significant problem in JAPAN
  • Long vs. short bursts will require JAPAN rNd from Paul, etc.
  • The AT combos of interest are Ldd avg Rdd (for vertical transverse), Indd avg Outdd (most important for horizontal transverse), and dd's therein

BCMs

  • Run 5474 is a current ramp for calibrating BCM Cav 4CQ, AT Rs, and SAM 7

Pedestals and Calibrations (respin first 4 slugs)

History of calibrations spreadsheet

Committed: https://github.com/JeffersonLab/japan/commit/ddb956334b38acb124f67b1e841b5a02c761cc97

Other Status Updates