Difference between revisions of "Minutes-7-8-2010"
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#* cosmic test results (Beni) [http://www.jlab.org/Hall-D/detector/fdclog/ FDC Log Book, pages 504] | #* cosmic test results (Beni) [http://www.jlab.org/Hall-D/detector/fdclog/ FDC Log Book, pages 504] | ||
#* oxygen contamination measurements [http://www.jlab.org/Hall-D/software/wiki/index.php/Image:Halld_gas_systemB_v2.gif Beni's scheme] | #* oxygen contamination measurements [http://www.jlab.org/Hall-D/software/wiki/index.php/Image:Halld_gas_systemB_v2.gif Beni's scheme] | ||
| − | # Other | + | # Other |
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= Minutes = | = Minutes = | ||
| − | Participants: Bill, Roger, Mark | + | Participants: Fernando, Bill, Roger, Mark, Bob, and Lubomir |
| − | + | ||
| − | + | ||
== Production == | == Production == | ||
| − | - | + | - According to Tim, the PR for the clean room is awaiting Claus Rode's signature. |
| − | - Bill | + | - Long discussion about the production procedures. Bill included in the Fast Track also the wire frame production, the wire stringing, and the testing of the chamber layers. The file is linked above (as jpeg) and is open for discussions and improvements. Bill asked Mark to look at the file and give his comments. 8 technicians will be involed full day and will produce one layer for 6 days, but realisticly we assume 8 days. For 30 layers it will be 240 working days. Two scientists |
| + | - | ||
- Bill started working on the wire stringing fixtures. We agree that this work has highest priority right now. Bill discussed the way the wires will be pushed down locally, close to the soldering pads. His idea is to use a diffraction plate with grooves: 50 grooves/mm with about 10 microns depth. The grooves will keep the wires at the same spacing while pushing them down. | - Bill started working on the wire stringing fixtures. We agree that this work has highest priority right now. Bill discussed the way the wires will be pushed down locally, close to the soldering pads. His idea is to use a diffraction plate with grooves: 50 grooves/mm with about 10 microns depth. The grooves will keep the wires at the same spacing while pushing them down. | ||
Revision as of 16:56, 8 July 2010
July 8, 2010 FDC meeting
Tentative Agenda
- Production
- 727 B.C. status
- wire frame production planning
- wire stringing design
- rohacell ring production
- Electronics: update (Fernando)
- Cathode redesign: finalizing (Roger)
- Full-scale prototype tests
- cosmic test results (Beni) FDC Log Book, pages 504
- oxygen contamination measurements Beni's scheme
- Other
