Difference between revisions of "Minutes-10-21-2010"

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-  We should change the FastTrack for the FDC production to reflect the fact that we will have the wire frames ready before the full production starts.
 
-  We should change the FastTrack for the FDC production to reflect the fact that we will have the wire frames ready before the full production starts.
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David will take care of this, but it's not first priority.
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- Five wire frames were laminated with Rohacell rings and sent back to the company for flat cut. Last two laminated at Blue Crab. Five new frames will come soon. Two new Rohacell rings are ready.
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== Electronics ==
 
== Electronics ==
  
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- The first article populated PCBs will be at JLab next week. They will be checked, channel by channel, and will be ready by the end of October. Then the first PCB ring will be glued, most likely in 126. By the end of November we will have all the PCBs ready. They will be stored in F117.  
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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.  
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- We discussed possible flux cleaning methods; we will need it also after soldering the wires. Using flux-off is   
  
 
- 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.  
 
- 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.  
  
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- Fernando submitted a PR for the mini HV cables.
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- Fernando submitted a PR for the mini HV cables
  
 
== Engineering ==
 
== Engineering ==

Revision as of 18:59, 21 October 2010

October 21, 2010 FDC meeting

Tentative Agenda

  1. Production (David)
  2. Electronics (Fernando, Chris, Roger)
    • Update on PCBs
    • Cathode foil and rigid-flex procurement [1]
  3. Engineering (Bill, David)
    • Wire stringing
    • Gluing and soldering materials
  4. Full-scale prototype tests (Lubomir)
  5. Other


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