Nov 1, 2011 Readout

Teleconference Time: 11:00 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
• Athens Phone: in Christina's office is 011-30-210-727-6947
• Phone:
  • +1-866-740-1260 : US and Canada
  • +1-303-248-0285 : International
  • then use participant code: 3421244# (the # is needed when using the phone)
  • OR from www.readytalk.com type access code 3421244 into "join a meeting" without the # (you need java plugin)

Tentative Agenda

1. Announcements
2. Review of Action Items
3. Monitoring Update (Athens)
   • Progress on BCAL monitoring, test a new type of LED
4. USM Update
   1. All cards and boards installed in 32-MPPC test setup
   2. Extensive troubleshooting of problems such as oscillations, was completed today
   3. Database for MPPC tests is now viewable on web at this link: http://atlasusr.fis.utfsm.cl:8000/
5. SiPM update
6. Electrical/cooling (Elton)
7. Geometry and light guides
8. Simulations
9. Other - poster photos?

Minutes

Attending: Elton, Yi, Tim, Beni (JLab); Zisis, Andrei (UofR); Will, Hayk, Ricardo, Alam (USM); Christina, George, Pavlos (Athens)

1. Announcements
2. Review of Action Items
3. Monitoring Update (Athens)
   1. Progress on BCAL monitoring, test a new type of LED
   2. Found new LED to be used for monitoring
      • Previous tests with Winston cones gave a ratio of Far/Near ~ 3.5
      • New tests with trapezoidal guides measured ratio F/N ~ 4.1 - 6.4
      • LEDs are non-focusing, so gluing or grease seems to increase collection.
      • Zisis: There seems to be sufficient light, so propose to place LED in hole without grease but secure the board to the light guide.
   3. Light guides from Chile have been processed though customs and checking with boards for space requirements. Will double check the space and position of the holes.
   4. Christina: request that we send them more SiPM for further detailed testing. They request 4-6. Elton said that sensors may not be the problem, but we need to check on availability of electronics.
4. USM Update
   1. Serguei and Alam have been working on installing all electronics (8 big boards, all daughter boards and connections) in the dark box.
      • Initial problems with readout and noise, but initial issues addressed.
      • Writing data to dB with dummy data.
   2. All cards and boards installed in 32-MPPC test setup
   3. Extensive troubleshooting of problems such as oscillations, was completed today
   4. Database for MPPC tests is now viewable on web at this link: http://atlasusr.fis.utfsm.cl:8000/
5. SiPM update
6. Electrical/cooling (Elton)
7. Geometry and light guides
8. Simulations
9. Other - poster photos?