August 4, 2010 Tracking CDC/FDC

Meeting Time and Place

Wednesday August 4, 2010 at 11:00am At Jefferson Lab, the meeting will be held in room F326-327

Connections

To connect from the outside, please use ESNET
1.) ESNET: 8542553
2.) Phone:
+1-800-377-8846 : US
+1-888-276-7715 : Canada
+1-302-709-8424 : International
then enter participant code: 77438230# (remember the "#")

Agenda

1. Announcements
2. FDC Update logbook
3. CDC Update
   1. Update on the new straws (Pictures).
      1. The scratches are gone.
      2. Acceptance rate has been 104 out of 108 straws. After cutting open the four rejects, we concluded that three also would have been acceptable. The one failure is a glueball on the straw (we are writing the paper now).
      3. The straws are much cleaner than anything we have seen before - just a few white spots - so we are looking modifying our cleaning procedure.
      4. Lamina told us the straws are manufactured in a clean room and any dust we see can only be mylar dust ( and we do not see very much at all).
      5. Lamina is going to do production with an interior carton so we can clear all the packing material away before opening the inner case.
   2. Our pneumatic glue injection supplier also supplies epoxies (Elsworth Adhesives). We have gotten a better price for our conducting epoxy from them. The glue is also sold in a better dispenser system -- basically a dual cartridge syringe with a very short mixing chamber. They also have a shorter (10 day) lead time than McMaster Carr. Cheaper price, less waste, quicker mixing.
   3. We have 50/50 AR-CO₂ premix.Premixed_50/50
   4. Update on noise studies with the new preamplifier ([ http://halld.org/CDC/faraday/index.html | Caged prototype]). Noise_studies
4. AOT