Oct 13, 2011 SiPM Electrical and Cooling revised

Action Items from previous meetings

1. Carl to check instability of LED (as a possible contributor to sensor output changes) (Carl) Jack confirmed the instability was related to low photoelectron yields
2. Chris to check HV specs on coax cable. (Needs to hold at least 80 V). Greater than 200 V rms, breakdown voltage of 640 V.

Tentative Agenda

1. Announcements
2. Action Items
3. Schedule, reporting, and manpower (Elton)
   • Progress, EVMS updates next week
4. SiPM testing (everyone)
   1. Light source / optics
   2. Electronic boards
   3. Cabling
   4. Cooling plate
   5. Other?
5. Mechanical (Jim)
   • Drawings proceeding, Chuck will get back to this next week
   • Items to be finalized: standoff locations need to be confirmed by Fernando. Chris as entered them onto the layout and they seem ok.
6. Mechanical drawings (Chuck)
7. Geometry (Elton)
8. Temperature compensation (Jack)
9. Preamp-summing (Fernando)
10. Granularity (Elton)

Minutes

Attending: