Meeting 2022 07 20
From Hall A Wiki
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!
Near term work plan
- See installation plan for SBS here: plan
- [photos from the hall https://hallaweb.jlab.org/wiki/index.php/File:Installation_Update_22June2022.pdf]
- Installation of HV dividers on BB: work plan
- Thoughts on special run requests during GEn:
- Luminosity studies (Nilanga)
- Full readout studies for negative pulse studies and etc (Sean)
Update on INFN GEM layers for GEn-RP
- Ran up a new divider on the front layer GEM of the inline stack. Verified temperature and V/I consistent with divider run-up with no GEM.
- Currently in Hall. Plan to install new dividers on upstream-most layer while we can easily access. Will need sliding platform to remove the layer to install the new dividers on the second layer.
Update on UVa GEM layers for GEn-RP
- UVA GEM HDMI, HV and LV cables are all connected both from the detector side and crate sides.
- The order of gas sut-off valves arrived and we have connected them and start flushing the GEMs with Nitrogen since Monday.
- Plan to do a HV test on UVA GEM sometime early next week.
Update on BB GEMs
- Cosmic data taken last week and alignment in progress
- Need to get the new HV on the main HV GUI and added in EPICS
DAQ updates (Ben, Bryan, Alex)
- schematic of setup?
- FIR filter?