Revision as of 19:04, 21 October 2010

October 21, 2010 FDC meeting

Tentative Agenda

Production (David)
- Blue Crab status sketch
- Frame lamination
- other: changes to FastTrack
Electronics (Fernando, Chris, Roger)
- Update on PCBs
- Cathode foil and rigid-flex procurement [1]
Engineering (Bill, David)
- Wire stringing
- Gluing and soldering materials
Full-scale prototype tests (Lubomir)
- gas mixture studies FDC Log Book, page 526
Other

@@ Line 37: / Line 37: @@
 - Chris: Inspecting the first article (8, two of each) populated PCBs. Initially they could hold a maximum voltage of ~1500V.The problem: flux from the soldering under the capacitors. Chris cleaned 5 channels (using some flux-off spray) and they could hold 2500V without problems. Fernando decided to go ahead with the full production by requiring the company to improve the cleaning procedures.
-- We discussed possible flux cleaning methods; we will need it also after soldering the wires. Using flux-off is
+- We discussed possible flux cleaning methods; we will need it also after soldering the wires. Using flux-off is expensive (both materials and labor). Ultrasonic cleaner is also very expensive (Fernando).
 - No news from the procurement about companies (other than Allflex) interested in the cathode production. The deadline was Oct.13. As Fernando promised before, he will take care of the procurement (not a sole source!) of the rigid-flex. Fernando and Roger will contact Allflex for the details of the rigid-flex production.