Difference between revisions of "Meeting 2022 01 19"

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===  Update on BB GEMs(Sean, Ezekiel, Holly, Anu) ===
 
===  Update on BB GEMs(Sean, Ezekiel, Holly, Anu) ===
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* gas filters identified, working on order to implement 1 per line from distribution to GEM in BB
+
* gas filters identified and ordered for BB
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* GEM HV linearity study at SBS-14 https://logbooks.jlab.org/entry/3973136
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* [https://hallaweb.jlab.org/wiki/images/3/38/BB_GEMs_1_19_22.pdf Overall GEM update]
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* 2 uA on LH2 flowing at 525 cc/min https://logbooks.jlab.org/entry/3970576
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* 1 uA on LD2 flowing at 375 cc/min https://logbooks.jlab.org/entry/3972332
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* 1 uA on LD2 flowing at 375 cc/min with +25 V on UV layer 1 and XY 1 https://logbooks.jlab.org/entry/3972299
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* Summary: Discussion on testing and understanding of negative signals and their source. Need plan and documentation.
  
 
=== Update on UVa GEM layers for GEn-RP (Anu, John, Thir) ===
 
=== Update on UVa GEM layers for GEn-RP (Anu, John, Thir) ===
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* Update on: Analyzer, SBS-offline, and SBS-replay installed on eel124gemdaq?
+
* SBS-replay/analysis: Need to finish up the database file and then move on to trying out the full SBS analysis/replay.
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* Update on: Need to finalize configuration of the database and CFG files?
+
* Simple table for showing which GEM sectors are known to be "dead".
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* Update on: Finalizing a comprehensive report on the status and remaining plans for the GEn-RP setup.  
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* ZIF-panasonic connectors at UVa: probably want to order about 100. Will also order more APV from CERN.
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* Update on: What are the dates for when this gets moved in?
+
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* Identified ZIF-panasonic connectors, need to determine quantity for order and implementation in design
+
  
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---- Requests made during the meeting
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---- Requests made during previous meeting:
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* DAQ inventory survey - [[Media:Screenshot_from_2022-01-18_19-44-01.png | Latest APV Inventory]]
  
−
*Is the MPD count in this spreadsheet (https://docs.google.com/presentation/d/1k9OGSgOSm9e2UNpA9n3k0W7nGgIyo0SK/edit#slide=id.p1) up to date? We have enough for GEn-RP?
+
---- HV Power Supply tests
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* Update on:: Re-do the inventory of APV cards. [[Media:Screenshot_from_2022-01-18_19-44-01.png || Remaining APVs in EEL for the assembly of last UVA -XY GEMs]]
+
* Currently have data for the pedestals for both Caen and Wiener power supplies.
 +
* Have cosmic data for the Wiener PS -- just ended run for Caen cosmic data.
  
 
=== Update on INFN GEM layers for GEn-RP (Ezekiel) ===
 
=== Update on INFN GEM layers for GEn-RP (Ezekiel) ===
 
* Update on: finish document with honest assessment of current readiness
 
* Update on: finish document with honest assessment of current readiness
−
* Update on: need a plan to change out the HV divider and test
+
* INFN working on the divider modification and will send some replacements when available.
  
 
=== Update on the Tracking efficiency / resolution (Andrew) ===
 
=== Update on the Tracking efficiency / resolution (Andrew) ===
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*  
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* No update
  
 
=== Update on the High rate DAQ development (Ben, Bryan, Alex, Holly) ===
 
=== Update on the High rate DAQ development (Ben, Bryan, Alex, Holly) ===
−
*
+
* No update

Latest revision as of 12:32, 19 January 2022

GMn GEM commissioning Meetings: WEDNESDAY 10:00am - 11:00am

Link to all previous meetings: GMn GEM Commissioning Meeting

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

Update on BB GEMs(Sean, Ezekiel, Holly, Anu)

Update on UVa GEM layers for GEn-RP (Anu, John, Thir)

  • SBS-replay/analysis: Need to finish up the database file and then move on to trying out the full SBS analysis/replay.
  • Simple table for showing which GEM sectors are known to be "dead".
  • ZIF-panasonic connectors at UVa: probably want to order about 100. Will also order more APV from CERN.
Requests made during previous meeting:
HV Power Supply tests
  • Currently have data for the pedestals for both Caen and Wiener power supplies.
  • Have cosmic data for the Wiener PS -- just ended run for Caen cosmic data.

Update on INFN GEM layers for GEn-RP (Ezekiel)

  • Update on: finish document with honest assessment of current readiness
  • INFN working on the divider modification and will send some replacements when available.

Update on the Tracking efficiency / resolution (Andrew)

  • No update

Update on the High rate DAQ development (Ben, Bryan, Alex, Holly)

  • No update
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