Difference between revisions of "Meeting 2022 11 16"

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(Created page with "<span style="font-size:larger">'''GMn GEM commissioning Meetings: WEDNESDAY 10:30am - 11:30am'''</span> Link to all previous meetings: [https://hallaweb.jlab.org/wiki/index.p...")
 
(Update on BB GEMs)
 
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===  Update on BB GEMs ===
 
===  Update on BB GEMs ===
* Layer 0 current draw - keep live plot up when changing the voltages!
+
* Layer 2 giving lower efficiency than naively expected. Nothing obvious in all detector performance plots. Likely due to some software thresholds added during pass change.
* plan for short luminosity scan, check BB layer 0 tweak and iterate with beam [https://sbs.jlab.org/DocDB/0003/000324/003/GEn%20GEM%20Luminosity%20Studies.pdf]
+
** Will investigate further.
 +
* Still need luminosity scan, and BBL0 iteration check (with Nilanga)
  
 
=== Update on layers for GEn-RP ===
 
=== Update on layers for GEn-RP ===
 
* Stand alone DAQ:  
 
* Stand alone DAQ:  
** need to resolve INFN LV
+
** INFN LV?
 
** need to keep running and monitor crashes
 
** need to keep running and monitor crashes
** need radiation measurement
 
 
** hv scan in parallel daq?
 
** hv scan in parallel daq?
* Lots of premix at Hall A
+
* NDX probe installed in SBS electronics bunker
  
 
=== DAQ updates (Ben, Bryan, Alex) ===
 
=== DAQ updates (Ben, Bryan, Alex) ===

Latest revision as of 11:31, 16 November 2022

GMn GEM commissioning Meetings: WEDNESDAY 10:30am - 11:30am

Link to all previous meetings: GMn GEM Commissioning Meeting

Please use sbs_gems mailing list for plots/communications and HALOG entries relevant to GEMs!


Commissioning of the GEMs:

Update on BB GEMs

  • Layer 2 giving lower efficiency than naively expected. Nothing obvious in all detector performance plots. Likely due to some software thresholds added during pass change.
    • Will investigate further.
  • Still need luminosity scan, and BBL0 iteration check (with Nilanga)

Update on layers for GEn-RP

  • Stand alone DAQ:
    • INFN LV?
    • need to keep running and monitor crashes
    • hv scan in parallel daq?
  • NDX probe installed in SBS electronics bunker

DAQ updates (Ben, Bryan, Alex)