Meeting 2019 04 04

GMn GEM commissioning Meetings: Thursday 9:00am - 10:00pm

Link to all previous meetings: GMn GEM Commissioning Meeting

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Kondo, ... 

Update on UVa GEM commissioning (Kondo)

• Short update

- HV test on N2 of the 4 modules of layer#2 done OK see link: https://hallaweb.jlab.org/dvcslog/SBS/266
- Request for 34 UVa long cables for layer#2 + MONO cables for one module done with Mark 
- Modification of the GEM frames for layer#3 completed by machine shop. We will test these holes during the assembly of the 3rd layer
- We will have a setup for standalone test of backplane+APVs before mounting on the chambers (see Siyu's slides)
- Drawing of the backplanes support on the Alu frames almost completed. 
- Identify with Bogdan some counters that we will use to trigger our cosmics - Need someone for the test of the divider and PMT for these modules with the help from Bogdan
- We will be busy with the PREX GEMs in the next 3 weeks => delay the UVa GEM layer assembly. 
- We need more active participation of all the people involved in the activity => things are going at a too slow pace ...