Difference between revisions of "Minutes-10-21-2010"
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- 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. | - 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 | + | - We discussed possible flux cleaning methods; we will need cleaning also after soldering the wires. Using flux-off is expensive (both materials and labor). Ultrasonic cleaner is also very expensive (Fernando) and even more difficult for large surfaces. Bill asked how much we can spend on ultrasonic cleaner. Glenn: up to ~$15K, otherwise manual cleaning is less expensive. The other problem Glenn pointed out is the power that we will need for large volumes. Bill will look for possible solutions. |
| − | - | + | - Good news about the cathode foil procurement: according Ross Small only Allflex responded to the ad at FedBiz, he has all the paperwork (after some delay) from Allflex and will go ahead with the contract. |
- Fernando submitted a PR for the mini HV cables | - Fernando submitted a PR for the mini HV cables | ||
Revision as of 19:18, 21 October 2010
October 21, 2010 FDC meeting
Tentative Agenda
- Production (David)
- 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
