Minutes-7-21-2011

July 21, 2011 FDC meeting

Agenda

1. Production Construction Tracking (Dave)
   • Status
   • HV tests: results, testing procedures (Lubomir)
   • Other: wire deadening, iron source
2. Engineering update (Bill)
3. Electronics update (Chris)
4. Chamber testing at EEL126
   • Tests with external tracking (Beni)
5. Other

Minutes

Participants: Eugene, Bill, Dave, Chris, Beni, Simon, and Lubomir.

Production

- Dave (see the construction tracking): Continued with stringing wire frame#4. Wire frame#3 is waiting for soldering second phase component (Chris will do it together with Tina). Cell#5: one cathode ready, working on the second (type 2) cathode. Cell#6: working on the first cathode.

- Waiting for the chemicals for the wire deadening; probably will start testing the procedure beginning of next week. Bill: what is the wire diameter needed to deaden the wire? Lubomir: according to Garfield if we make sense wires 40um signal drops by factor of 40, for 60um - factor of 400, and for 80um -factor of 2,700. After some discussions, Bill will look what is the sagging effect of thickening the wires and Lubomir will estimate the suppression factor that we need.

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