Difference between revisions of "Meeting 2022 01 19"
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* gas filters identified and ordered for BB | * gas filters identified and ordered for BB | ||
* GEM HV linearity study at SBS-14 https://logbooks.jlab.org/entry/3973136 | * GEM HV linearity study at SBS-14 https://logbooks.jlab.org/entry/3973136 | ||
| + | * [https://hallaweb.jlab.org/wiki/images/3/38/BB_GEMs_1_19_22.pdf 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 | ||
| + | * 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) === | ||
* SBS-replay/analysis: Need to finish up the database file and then move on to trying out the full SBS analysis/replay. | * 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 | + | * ZIF-panasonic connectors at UVa: probably want to order about 100. Will also order more APV from CERN. |
---- Requests made during previous meeting: | ---- Requests made during previous meeting: | ||
| − | * DAQ inventory survey | + | * DAQ inventory survey - [[Media:Screenshot_from_2022-01-18_19-44-01.png | Latest APV Inventory]] |
---- HV Power Supply tests | ---- HV Power Supply tests | ||
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=== 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 | ||
| − | * | + | * 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) === | ||
| − | * | + | * 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!
Contents
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
- 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)
- 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:
- DAQ inventory survey - Latest APV Inventory
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
