Difference between revisions of "Meeting 2022 01 19"

Revision as of 11:14, 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)

• gas filters identified and ordered for BB
• GEM HV linearity study at SBS-14 https://logbooks.jlab.org/entry/3973136
• Overall GEM update
• 2 uA on LH2 flowing at 525 cc/min https://logbooks.jlab.org/entry/3970576
• 1 uA on LD2 flowing at 375 cc/min https://logbooks.jlab.org/entry/3972332
• 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

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???

• DAQ inventory survey - Latest APV Inventory

• 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
• Update on: need a plan to change out the HV divider and test

Update on the Tracking efficiency / resolution (Andrew)

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