Difference between revisions of "Meeting 2023 10 25"
From Hall A Wiki
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=== Update on BB GEMs === | === Update on BB GEMs === | ||
* GEM experts on-call [https://docs.google.com/spreadsheets/d/18-5DuFuVJUpiEitA2ncjH6Ch-l8YZDNiCLETkdXqegk/edit?usp=sharing] | * GEM experts on-call [https://docs.google.com/spreadsheets/d/18-5DuFuVJUpiEitA2ncjH6Ch-l8YZDNiCLETkdXqegk/edit?usp=sharing] | ||
| − | * BB HV was tripping a lot this weekend due to beam issues. We continued to raise the trip limits to reduce the trips of the detectors[https://logbooks.jlab.org/entry/4204275] | + | * BB HV was tripping a lot this weekend due to beam issues. We continued to raise the trip limits to reduce the trips of the detectors [https://logbooks.jlab.org/entry/4204275] |
* BB GEM 5th layer, top most module (XY) likely shorted [https://logbooks.jlab.org/entry/4204147], [https://logbooks.jlab.org/entry/4204154], [https://logbooks.jlab.org/entry/4206196] | * BB GEM 5th layer, top most module (XY) likely shorted [https://logbooks.jlab.org/entry/4204147], [https://logbooks.jlab.org/entry/4204154], [https://logbooks.jlab.org/entry/4206196] | ||
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* Some problem in SBS layer 2 [https://logbooks.jlab.org/files/2023/10/4200832/summaryPlots_5732_sbs_gem.pdf] | * Some problem in SBS layer 2 [https://logbooks.jlab.org/files/2023/10/4200832/summaryPlots_5732_sbs_gem.pdf] | ||
* Mass flow controller problem is still unresolved [https://logbooks.jlab.org/entry/4202370] | * Mass flow controller problem is still unresolved [https://logbooks.jlab.org/entry/4202370] | ||
| + | * Chandan, Lars, and Ellen temporarily solved the problem with Ar bottle changeover by setting it to happen at 300psi. | ||
=== DAQ updates (Ben, Bryan, Alex) === | === DAQ updates (Ben, Bryan, Alex) === | ||
* | * | ||
Revision as of 10:59, 24 October 2023
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!
Contents
GEM inventory for GEn-RP and GEp:
Update on BB GEMs
- GEM experts on-call [3]
- BB HV was tripping a lot this weekend due to beam issues. We continued to raise the trip limits to reduce the trips of the detectors [4]
- BB GEM 5th layer, top most module (XY) likely shorted [5], [6], [7]
Update on layers for GEn-RP
- LV probably died in SBS and will be repaired on Wednesday when beam is away [8]
- HV problem in SBS layer 6 since turning on beam [9]
- Some problem in SBS layer 2 [10]
- Mass flow controller problem is still unresolved [11]
- Chandan, Lars, and Ellen temporarily solved the problem with Ar bottle changeover by setting it to happen at 300psi.
