Difference between revisions of "Minutes-11-18-2010"
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# Other | # Other | ||
| − | |||
= Minutes = | = Minutes = | ||
| − | Participants: | + | Participants: Bill, Fernando, Glenn, Eugene, Dave, Al, Chris, Roger, Simon, and Lubomir. |
== Production == | == Production == | ||
| − | - | + | - Blue Crab status: the granite tables and other stuff was moved to make space for the clean room construction. We decided to keep 2 or 3 tables inside the office to be used for gluing the PCB rings and their lamination. Dave found office furniture that we can storage in Blue Crab as long as the accelerator people do not complain. |
| − | - | + | - All wire frames laminated with Rohacell. Most of them are fly cut and stored in our machine shop; we decided to move them to 126 to make sure they are not exposed to high humidity. Four cathode frames are ready, but Vision Machine had problems with the milling machine and the production will be delayed (this will not affect the production at all). The next step is to glue and laminate the PCBs. |
| − | - | + | - As requested by Eugene we have updated the FDC production budget linked above; it is needed urgently for the change request. Everybody is encouraged to look at it and make corrections if needed asap. |
== Electronics == | == Electronics == | ||
| + | |||
| + | <!-- | ||
- 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. 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. | - 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. 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. | ||
Revision as of 18:38, 18 November 2010
November 18, 2010 FDC meeting
Tentative Agenda
- Production (David)
- Electronics (Fernando, Chris, Roger)
- PCB status
- Other
- Cathode foil and rigid-flex production
- Engineering (Bill, David, Beni)
- Wire stringing status model.
- Other
- Full-scale prototype tests
- timing with fADC125 (Beni)
- cathode resolution studies (Simon and Lubomir) FDC Log Book, pages 539
- Other
Minutes
Participants: Bill, Fernando, Glenn, Eugene, Dave, Al, Chris, Roger, Simon, and Lubomir.
Production
- Blue Crab status: the granite tables and other stuff was moved to make space for the clean room construction. We decided to keep 2 or 3 tables inside the office to be used for gluing the PCB rings and their lamination. Dave found office furniture that we can storage in Blue Crab as long as the accelerator people do not complain.
- All wire frames laminated with Rohacell. Most of them are fly cut and stored in our machine shop; we decided to move them to 126 to make sure they are not exposed to high humidity. Four cathode frames are ready, but Vision Machine had problems with the milling machine and the production will be delayed (this will not affect the production at all). The next step is to glue and laminate the PCBs.
- As requested by Eugene we have updated the FDC production budget linked above; it is needed urgently for the change request. Everybody is encouraged to look at it and make corrections if needed asap.
