Difference between revisions of "Mar 20, 2018"
From Hall A Wiki
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Roberto gives a detailed update on the setup of the cosmic stand for the INFN GEM layers | Roberto gives a detailed update on the setup of the cosmic stand for the INFN GEM layers | ||
| − | * 3 chambers fully instrumented on the cosmic stand (Jo, J1 and J2), all 12 modules are holding HV very well, (nominal 4 kV with Ar-CO2 75/25) | + | * 3 chambers fully instrumented on the cosmic stand (Jo, J1 and J2), all 12 modules are holding HV very well, (nominal 4 kV with Ar-CO2 75/25). One of J2 module that previously had issues (See Evaristo's talk at SBS Coll Meeting Feb. 2018) with HV was also fixed (basically the modules had to be cured over time to burn dusts etc ...) |
| − | + | ||
| + | * Mostly all APV25 cards and back planes on the 3 layers (12 modules) have been tested and are | ||
=== Status of the UVa GEM Cosmic Stand === | === Status of the UVa GEM Cosmic Stand === | ||
Revision as of 11:51, 20 March 2018
Link to all previous meetings: Weekly GMn GEM Commissioning Meeting
Bogdan, Evaristo, Kondo, Leo, Nilanga, Roberto, Siyu
Status of the INFN GEM Cosmic Stand
Roberto gives a detailed update on the setup of the cosmic stand for the INFN GEM layers
- 3 chambers fully instrumented on the cosmic stand (Jo, J1 and J2), all 12 modules are holding HV very well, (nominal 4 kV with Ar-CO2 75/25). One of J2 module that previously had issues (See Evaristo's talk at SBS Coll Meeting Feb. 2018) with HV was also fixed (basically the modules had to be cured over time to burn dusts etc ...)
- Mostly all APV25 cards and back planes on the 3 layers (12 modules) have been tested and are
Status of the UVa GEM Cosmic Stand
- They receive the new longer screws, will prepare them (cleaning etc ...) for assembly.
- Will put the mock chamber together once more this week to check if gas leak issue is fixed with the longer screws
