Revision as of 22:48, 22 July 2010

July 22, 2010 FDC meeting

Tentative Agenda

Announcements
Production
- 727 B.C. status
- production planing: 5 techs production schedule
Electronics: update (Fernando)
Engineering
- Cathode foil: update (Roger)
- Wire stringing design (Bill)
- Cathode frame prototyping
Full-scale prototype tests
- cosmic test results (Beni) FDC Log Book, pages 505
- oxygen contamination measurements Beni's scheme
Other

Participants: Eugene, Bill, Fernando, Glenn, Roger, Casey, Beni, Simon, and Lubomir.

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 - The strongbacks are being shipped from IUCF, will have them in a week or two. Bill wanted to have sketches or pictures of the position and tension measuring systems. Lubomir will contact UVA.
 - The two Liping's students are busy with PRIMEX. We should start cutting the rohacells when we have people available.
 == Electronics ==
-- Fernando: we expect the first PCBs next week. It turned out that the HV capacitors (rated for 4kV) are not available in the moment, and there's a lead time of 12 weeks if we want to order them. Instead there are 3kV capacitors available. Fernando asked if this is acceptable. Eugene mentioned the problems with the FCAL capacitors and asked if we can wait for the original capacitors that were used already in the prototype. Fernando: we will need the capacitors in August to proceed with the stuffing of the PCBs; 3kV and 4kV capacitors are really the same type (different from the FCAL ones) just rated for different HV. We don't expect to put HV more than 3kV for sure. Eugene suggested to do extensive tests of the 3kV capacitors at the working HV.
+- Fernando: we don't have yet the first article PCBs. Recently space was freed in F117 for the PCB testing. They are interviewing people for a tech position, to work on the testing.
+- fADC: Gerard has now a version of the firmware that works at high rates. There's also no need to download the firmware from a computer, it loads from the EPROM on the module.
 == Engineering ==