Difference between revisions of "Minutes-1-20-2011"

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#* Latest tests [http://www.jlab.org/Hall-D/detector/fdclog/ FDC Log Book, page 550] (Lubomir)
 
#* Latest tests [http://www.jlab.org/Hall-D/detector/fdclog/ FDC Log Book, page 550] (Lubomir)
 
# Other
 
# Other
 
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= Minutes =
 
= Minutes =
  
Participants: Bill, Fernando, Eugene, Dave, Roger, Simon, and Lubomir.
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Participants: Dave, Chris, Simon, Beni, Fernando, Glenn, and Lubomir.
  
 
== Production ==
 
== Production ==
  
- According to Tim, Dominion Power will have the power ready by next week. There were weather related delays. Dave: the electrical wiring inside the clean room is done, but data cables remain to be installed. Dave is is also busy with paperwork related to the production: quality plan, conduct of operation, clean room procedure, etc.
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- Dave: there was a walk trough the clean room yesterday with the vendor. The emergency exit door must be sealed better. Glass on the dark room door must be covered. The move in date is postponed to Jan 31. Dave has prepared conduct of operation documents for the clean room.
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- New ETC schedule: the full package testing is postponed and squeezed. Fernando: even with the new schedule we may not have the electronics needed for the tests, so we need to have  alternative testing procedure.
  
 
== Electronics ==
 
== Electronics ==
  
- Roger: answer from Allflex regarding our foil inspection report. The packing we suggested can be done. The most difficult is to avoid the stains. They will respond to all the questions in our report later this week.
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- Chris sent the first article signal cables back to the company to fix the cable problem.
  
- Roger expects e-mails from Fernando and Bill regarding the acceptance of the first article rigid-flex assemblies. Bill checked for matching to the cathode foil and frame, but he will check it also in the drawings. Chris will do some more measurements before the Fernando's approval. After the meeting Roger mentioned (based on Casey's information) that the contacts of the new rigid-flexes are not tinned, but they were tinned on the flexes for the full-scale prototype. We will correct this so that they are tinned in the mass production. Lubomir was concerned of the ground strip on the cathode foil touching the flex: due to the strong coupling it may attenuate the signals; this can be estimated.
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- We discussed two issues with the rigid-flex assemblies:  
  
- Fernando; the first article signal cables had a problem: one of the connectors had opposite polarity. He is contacting the company. Other than that the quality is very good.
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- fADC125: according to Fernando there are some modifications that have to be done for the next fADC125 version by March 2011. Gerard will be able to work on this starting February.
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== Engineering ==
 
== Engineering ==

Revision as of 17:35, 20 January 2011

January 20, 2011 FDC meeting

Tentative Agenda

  1. Production (David)
  2. Electronics (Fernando, Chris, Roger)
    • Rigid-flex assemblies
    • Foil production status
    • Other
  3. Engineering (Bill, David, Lubomir)
  4. Full-scale prototype studies
  5. Other

Minutes

Participants: Dave, Chris, Simon, Beni, Fernando, Glenn, and Lubomir.

Production

- Dave: there was a walk trough the clean room yesterday with the vendor. The emergency exit door must be sealed better. Glass on the dark room door must be covered. The move in date is postponed to Jan 31. Dave has prepared conduct of operation documents for the clean room.

- New ETC schedule: the full package testing is postponed and squeezed. Fernando: even with the new schedule we may not have the electronics needed for the tests, so we need to have alternative testing procedure.

Electronics

- Chris sent the first article signal cables back to the company to fix the cable problem.

- We discussed two issues with the rigid-flex assemblies: