Difference between revisions of "Minutes-4-19-2012"
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== New results from the oxygen studies == | == New results from the oxygen studies == | ||
| − | - Latest results | + | - Latest results linked above, starting from configuration #19: applying vacuum grease (Apiezon (L)) on two EPDM O-rings in the testing chamber resulted in a record low oxygen of 50ppm. Without Apiezon with the same configuration we had 405ppm. It means that we had significant oxygen contribution from the bottom cathode surface against the top O-ring on the spacer, that was eliminated with the grease. It turned out, however, the grease reacted with the EPDM |
== Production == | == Production == | ||
Revision as of 16:18, 19 April 2012
April 19, 2012 FDC meeting
Agenda
- New results from the oxygen studies (Lubomir)
- Production Construction Tracking (Dave)
- New procedures for package refurbishment
- First production cell with Apiezon and Viton O-rings
- Production status
- Engineering update (Bill)
- Electronics update (Chris)
- Tests with first package at 126 (Beni)
- Grounding
- Other
![[1]](http://www.jlab.org/Hall-D/detector/fdc/design/Picture0010.png){kind=link}
![[2]](http://www.jlab.org/Hall-D/detector/fdc/design/Picture0002.png){kind=link}
![[3]](http://www.jlab.org/Hall-D/detector/fdc/design/Picture0003.png){kind=link}
![[4]](http://www.jlab.org/Hall-D/detector/fdc/design/Picture0004.png){kind=link}
![[5]](http://www.jlab.org/Hall-D/detector/fdc/design/Picture0005.png){kind=link}