August 31, 2011 Tracking CDC/FDC

Meeting Time and Place

Wednesday August 31, 2011 at 11:00am At Jefferson Lab, the meeting will be held in F326

Connections

To connect from the outside, please use ESNET

1. ) ESNET: 8542553
   
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• You can look up toll-free number at http://www.readytalk.com/intl
• US and Canada: (866)740-1260 (toll free)
  
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• enter access code followed by the # sign: 3421244#
  

Agenda

1. Announcements
2. FDC Update logbook
3. CDC Update

Minutes

Participants: Curtis, Naomi, Beni, Eugene, Elton, Simon, Lubomir, Dave, Mark, Tim

CDC Update

1. minutes still under edit - below are old minutes from a previous mtg
2. Straw installation - the last stereo row (24) is nearly complete.
3. Tension tests - 6 broken wires were found in the 6 strung layers (and will be replaced during the next stringing session). All the wires did pass continuity testing soon after stringing; the tension measurements were made several weeks afterwards. The wires all broke in or near to the crimp pin. We plan to remeasure the tension in the other wires.
4. A few of the CDC photos taken by CMU's photographer are on line.[CDC photos]
5. The wire hookup prototype is finished and is being used for wiring practice. [PCB hookup prototype]
6. Naomi made a slight improvement to the prototype CDC resolution by improving the timing by sending the logic signals from scintillator discriminators and coincidence into the fADC.
7. Tim has sent out the cheeseplate spec to some vendors for comment prior to bidding. Labelling every hole will be cost-prohibitive so this might be reduced to 10% of the holes. We will have to accept stock material (polycarbonate), Tim will double-check that clear polycarbonate was specified.