Jul 10, 2012 Readout

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Revision as of 14:56, 10 July 2012 by Elton (Talk | contribs) (Minutes)

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Teleconference Time: 11:00 a.m. EST

  • ESNET (Number is 8542553) and EVO session (GlueX Calorimetry meeting room)
  • Phone connection only upon request.
    • +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)

Participant Direct Lines

  • 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

Items for followup from previous meeting

  1. SiPMs
    • Investigate the optimum overbias setting for the SiPMs (Serguei and Orlando)
  2. Monitoring
    • Check on payment for first article delivery (Elton) Payment has been made

Presentations from recent meetings

Tentative Agenda

  1. Announcements
  2. Review of Action Items
  3. Update from Athens: monitoring
  4. Update from USM
    1. SiPM Update (Javiera)
    2. Working Point Analysis (Orlando)
    3. Light guides (Iñaki)
  5. Status of testing at JLab
    1. Hall-D ELOG.
  6. BCAL Beam Tests 2012:
  7. Status of work at Regina
    1. Simulations
    2. BCAL Cosmics at Regina
  8. Other

Minutes

Attending:Elton, John, Zisis, Shaun, Tara, Eugene, Yi, Tim (Jlab); Will, Javiera, Orlando, Hayk (Jlab); Christina, Stratos, George (Athens).

  1. Announcements
  2. Review of Action Items
  3. Update from Athens: monitoring
    • Reordered components, expect 3 weeks ARO
    • Digi key small connectors are the pacing items, expect delivery Aug 20
    • Boards are in hand
    • Flexi-cable cleared today, expect delivery in about 10 days
    • First delivery of cards expected mid Sept.
  4. Update from USM
    1. SiPM Update (Javiera)
      • 1800 MPPCs stage 1, 1600 MPPCs stage 3, 1300 MPPCs stage 2. Have measured 80 extra units in stage 2.
      • 5th delivery from Hamamatsu delayed, expected next week.
    2. Working Point Analysis (Orlando)
      • Summary of pde, gain, pde*gain and amplitude rms/mean distributions shown for several temperatures and sensors as a function of operating voltage.
      • Mix of various temperatures will be separated out in to separate plots (Orlando).
      • Understanding of how these relate to the specifications needs to be understood.
    3. Light guides (Iñaki)
      • Waiting on spare parts for machine, expected this week
      • Once in hand, the part will be exchange and recalibrated
      • Pieces on hand show dispersion on the order of 80-100 microns for D type. Dispersion is less, about 20 microns for B type. The D type guides might still meet specifications.
      • Iñaki will send JLab list of deviations for all light guides this week.
  5. Status of testing at JLab
    1. Hall-D ELOG.
  6. BCAL Beam Tests 2012:
  7. Status of work at Regina
    1. Simulations
    2. BCAL Cosmics at Regina
  8. Other