Difference between revisions of "Minutes-11-11-2010"
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- By next Wednesday expect to have all the wire frames laminated. 18 frames came back from Vision machine after fly cut. They started there also the cathode frame production. | - By next Wednesday expect to have all the wire frames laminated. 18 frames came back from Vision machine after fly cut. They started there also the cathode frame production. | ||
| − | - Dave made the next version of the production plan. We start production in March 2011, the first package will be ready by September 2011 and then every ~4 months we plan to have a new package. According to the plan we will produce chamber by chamber serially, so that we can test them at the same time. | + | - Dave made the next version of the production plan. We start production in March 2011, the first package will be ready by September 2011 and then every ~4 months we plan to have a new package. According to the plan we will produce chamber by chamber serially, so that we can test them at the same time. Fernando discussed the issue with the company and we will ship all the PCBs back for cleaning. In addition Chris found some other problems that are not crucial (Fernando). Find many pictures from the PCB inspection at M:\halld-electronics\Documents\FDC\Populated FDC First Articles on Windows, or at the /group/halld-electronics/Documents/FDC/Populated FDC First Articles on linux. |
== Electronics == | == Electronics == | ||
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| − | - Chris | + | |
| − | the | + | - Chris received all the populated PCBs. The inspection showed that the packaging was not done correctly (as for the first article) and as a result 8 PCBs (3+3+2 of different types) had broken tips up to 1.5". Bill thinks that this is not crucial and one should be able to glue the PCBs together. The main problem is that the PCBs have much more flux than the first article PCBs; the latter also were not acceptable. |
- Ultrasonic cleaning: according to Chris 6.6gal Vigon costs $285; we need 14gal. Not clear how often we have to change it. | - Ultrasonic cleaning: according to Chris 6.6gal Vigon costs $285; we need 14gal. Not clear how often we have to change it. | ||
Revision as of 18:32, 11 November 2010
November 11, 2010 FDC meeting
Tentative Agenda
- Production (David)
- Blue Crab status sketch
- Frame lamination
- Production plan
- Electronics (Fernando, Chris, Roger)
- Update on PCB inspection
- Other
- Cathode foil production
- Rigid-flex procurement
- Engineering (Bill, David, Beni)
- Wire stringing status model ; stepper motor controller.
- Other
- Full-scale prototype tests
- timing with fADC125 (Beni)
- cathode resolution studies (Simon and Lubomir) FDC Log Book, pages 537-538
- Other
Minutes
Participants: Eugene, Fernando, Bill, Casey, Mark, Chris, Roger, Simon, Beni, and Lubomir.
Production
- They are going to install phones and work on the Internet today at Blue Crab. We can now use heaters at low temperatures; must be above 60degF for gluing.
- By next Wednesday expect to have all the wire frames laminated. 18 frames came back from Vision machine after fly cut. They started there also the cathode frame production.
- Dave made the next version of the production plan. We start production in March 2011, the first package will be ready by September 2011 and then every ~4 months we plan to have a new package. According to the plan we will produce chamber by chamber serially, so that we can test them at the same time. Fernando discussed the issue with the company and we will ship all the PCBs back for cleaning. In addition Chris found some other problems that are not crucial (Fernando). Find many pictures from the PCB inspection at M:\halld-electronics\Documents\FDC\Populated FDC First Articles on Windows, or at the /group/halld-electronics/Documents/FDC/Populated FDC First Articles on linux.
