Jul 14, 2011 SiPM Electrical and Cooling

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Action Items from previous meetings

  1. Check impact of material at low end of readout, both in the tubes for cooling fluid but also in the Cu cooling plate. Need to check effect on particle trajectories. Ongoing study by Beni
  2. Check the possibility of enlarging the 4-40 screws to hold the cooling plate (Jim)

Tentative Agenda

  1. Announcements
  2. Action Items
  3. Schedule, reporting, and manpower (Elton)
  4. SiPM testing (Carl and Yi)
  5. Mechanical (Jim)
  6. Mechanical drawings (Chuck)
  7. Geometry (Elton)
  8. Temperature compensation (Jack)
  9. Preamp-summing (Fernando)

Minutes

Attending: meeting cancelled. Notes from Elton on ongoing activities:

  • We have to a plan to use Vitali's setup to measure the relative time resolution for the production pream/sum circuit compared to the previous summed circuit attached directly to the SiPM. Fernando will modify the old preamp to have a socket. Carl will provide a new SiPM from the batch of first article samples.
  • Beni has helped round up QDCs and a v430 crate, which can be used in the production setup.
  • Monitoring features on the light guides have been defined and should be added to the final drawings
  • Any updates on the bias/feedback studies?