Mar 17, 2011 SiPM Electrical and Cooling

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References

Action Items from previous meetings

Tentative Agenda

  1. Announcements
  2. Action Items
  3. Schedule, reporting, and manpower (Elton)
  4. First article testing (Carl and Yi)
  5. Mechanical cooling (Jim)
    • Review status of drawings for prototype (Chuck)
  6. Temperature compensation (Jack)
  7. Preamp-summing (Fernando)
  8. Discussion

Minutes

Attending: Jim, Jack, Elton, Eugene, Carl, Yi, Fernando

  1. Announcements
  2. Action Items
  3. Schedule, reporting, and manpower (Elton)
    • Updated evms table
  4. First article testing (Carl and Yi)
    • Update_20110317
    • 27 units out of 80 have been tested.
    • Uniformity is very good. Dark rate is about 1 MHz/tile. A single tile has a high dark rate of 1MHz.
    • Need to prepare measurements in a magnetic field. Will coordinate with Tom Carstens for testing with coil 3 in test lab.
    • Carl mentioned that he thought the pins of the LED might be magnetic. This should be checked
  5. Mechanical cooling (Jim)
    • Review status of drawings for prototype (Chuck)
    • All but two drawings are signed, the remaining two should be completed tomorrow. Prototype will go out for construction early next week.
  6. Temperature compensation (Jack)
    • Jack is setting up a dark box for testing his prototype.
  7. Preamp-summing (Fernando)
    • Layout for a single sum section was completed. After duplicating for the rest of the board, the step file will be passed on to Jim to incorporate into the mechanical model.
  8. Discussion