Difference between revisions of "Minutes-11-4-2010"

From GlueXWiki
Jump to: navigation, search
Line 25: Line 25:
 
== Production ==
 
== Production ==
  
- The company will start bringing materials for the clean room on Nov 24. The AC for the whole area will be installed by Dec 7. Before that for the lamination we will use mostly the office (low humidity <40%) and the granite tables outside for vacuum  
+
- The company will start bringing materials for the clean room on Nov 24. The AC for the whole area will be installed by Dec 7. Before that for the lamination we will use mostly the office (low humidity <40%) and the granite tables outside for vacuum bagging if the humidity is low. That was not the case today.
  
- 17 wire frames laminated; 14 are at Vision machine for fly cut. In the office ( we keep the Rohacell material and one round table used for lamination. Outside in the bay 
+
- We got all the wire frames (32) and spacer rings (30). 17 wire frames laminated; 14 are back at Vision machine for fly cut.  
 
+
- We will try to do both the Rohacell ring gluing and the lamination to the wire frame at once with vacuum bagging. Bill is thinking about a box for storage flushed with nitrogen. 14 wire frames (almost half) are laminated.
+
  
 
== Electronics ==
 
== Electronics ==
  
- Chris was investigating different ways of cleaning the PCBs using Vigor flux-off. Bill asked if we can buy an ultrasonic cleaner 42"x18"x6" that will be used also to clean the wire frames after soldering the wires, for $5500. Glenn agreed.
+
- Chris: by Wednesday we will have all the PCBs populated. The company sent two pictures (link above) show delaminations on two of the boards.
  
 
- Fernando: the first article signal cables will arrive by mid November and Chris is working on a board to be used for testing. The solder material (japanese) recommended from UVA is no longer available. Chris ordered similar materialial from other company to exercise. Working on the sole source procurement of the ASICs. Fermilab is also intersted in the same ASICs and Fernando discussed if we can share with Fermilab the costs
 
- Fernando: the first article signal cables will arrive by mid November and Chris is working on a board to be used for testing. The solder material (japanese) recommended from UVA is no longer available. Chris ordered similar materialial from other company to exercise. Working on the sole source procurement of the ASICs. Fermilab is also intersted in the same ASICs and Fernando discussed if we can share with Fermilab the costs

Revision as of 15:58, 4 November 2010

November 4, 2010 FDC meeting

Tentative Agenda

  1. Production (David)
    • Blue Crab status
    • Frame lamination
  2. Electronics (Fernando, Chris, Roger)
    • Update on PCBs
    • Cathode foil and rigid-flex procurement
    • Cathode foil inspection plan
  3. Engineering (Bill, David)
    • Wire stringing status; position measurement system.
    • Other
  4. Full-scale prototype tests
    • status, timing with fADC125 (Beni)
    • wire offset studies (Lubomir)
  5. Other