Dec 2, 2010 Readout

Teleconference Time: 10:30 a.m. EST

• ESNET 8542553 and EVO session
• JLab Phone: in CC F326 is 757-269-6337 (usual room)
• JLab Phone in CC L207 is 757-269-7084
• Phone in the Regina Videoconference Suite is 306-585-4204
• Phone:
  • +1-800-377-8846 : US
  • +1-888-276-7715 : Canada
  • +1-302-709-8424 : International
  • then enter participant code: 77438230# (remember the "#"). Phone connection only upon request.

Items for followup from previous meeting

1. Collect this information of testing (including goals and setup) on the wiki for ease of presenting information. (USM)
2. Resolution including summing SiPMs (IU)
3. Elton to send timeline for project to Will for feedback. Note: Detailed schedule for testing still needed.
4. Will to send draft sow to Elton for feedback.
5. Elton to investigate the options for transfering laser to UofR for future tests

Tentative Agenda

1. Announcements
2. Review of Action Items
3. Update - USM
4. SiPM update
   • Preparations for testing
   • Regina preparations
5. Electronics/cooling (Fernando)
6. Geometry and light guides= Tentative Agenda =

Minutes

Attending: Elton, Beni, Chuck, Jim, John (JLab); Will (USM); Zisis, George, Andrei (UofR);

1. Announcements
2. Review of Action Items
3. Update - USM (Will)
   1. Received 2nd small milling machine. Larger one on order. Setback with personnel. Student/engineer responsible for light guides and dark box will concentrate on one project.
   2. Testing board for electronics awaiting parts that are likely in customs
   3. All materials for dark box are in hand, except for the copper cooling plate that needs machining.
   4. Reminder to JLab to ship SiPM array for testing.
   5. Alam is updating SiPM tester to be more modular
4. SiPM update
   1. Preparations for testing
      • Carl is preparing the test setup for First Article testing of SiPMs
      • Mechanical cooling system under design including concept for prototype
   2. Regina preparations
      • New masters student will work on SiPMs
      • Kathryn Janzen will come down to Regina from Saskatoon to help get tests up and running.
      • Elton Asked about the laser. It is a 375 nm UV diode laser with variable intensity and pulse rate between 2.5 and 42 MHz. Together with a calibrated photodiode to determine absolute photon flux at high intensity, the laser can be used at low intensity to measure PDE.
5. Electronics/cooling (Fernando)
   1. Fernando responsible for the pre-amp/summing electronics board
   2. Jack McKisson responsible for the bias/temperature compensation board
6. Geometry and light guides
   1. Envelop and geometry for electronic boards needs to be coordinated between Fernando and Chuck/Jim.
   2. Mechanical prototype