Nov 13,2012 Readout

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Revision as of 13:21, 13 November 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 757-269-6460 (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 (USM)
    • Provide histograms of all measured units for each specification at T=20 deg C and V=1.2 V above breakdown.
    • Show distribution of light guide measurements (Alam, Francisco, Iñaki)

Presentations from recent meetings

Tentative Agenda

  1. Announcements
  2. Review of Action Items
  3. Monitoring
  4. Update from USM
    1. Link to the dump of the modified data base in three formats [1]
    2. Link to the content of Stage 3 [2]
  5. Status of testing at JLab
  6. Status of testing at Regina
  7. Simulations
  8. Beam Tests, Cosmics
    1. Mini BCAL timing analysis File:Meet121113.pdf
  9. Other

Minutes

Attending: Elton, David, Ivan , Beni, Yi, Eugene (JLab); Will, Alam, Orlando, Ricardo, Hayk (USM); Shawn, Zisis (UofR); Christina, George (Athens)

  1. Announcements
  2. Review of Action Items
  3. Monitoring (Christina, George was on EVO but we were not able to hear him)
    1. Fcal first article boards have arrived in Geneva
      • Will start populating them as soon as they arrive in Athens
    2. Setup for measurements of Fcal source using full size plexiglass (two sides instrumented with 5 LEDs)
      • Measurements conducted over the past 3 days to check uniformity
      • Scanning the surface oer 10x10cm2 areas
      • Measurements are hampered because they do not have a sufficiently large enclosure for the measurements. They are keeping the room as dark as possible and covering the plexiglass with black cloth.
      • So far they have not succeeded in finding uniform solution.
      • Measurements are ongoing.
      • Christina asked about the size of an LG block (4x4cm2)
    3. Bcal LEDs are being sorted according to intensity. The plan is to have 8 patch panels (one per quadrant x 2). Binning the LED intensity into 8 groups of closest matching would be useful to minimize scanning through a large range of biases during monitoring runs.
  4. Update from USM
    1. Link to the dump of the modified data base in three formats [3]
    2. Link to the content of Stage 3 [4]
      • Hayk indicated that modifications to the data base were conducted based on feedback that Elton provided to the description of items on the wiki.
  5. Status of testing at JLab
    • Ivan has completed the measurements of the SiPMs that were on the mini-Bcal in the beamtest to determine the changes due to irradiation.
    • In particular the dark rates before and after the beam test are being compared
    • Studies in progress and will be reported at a subsequent meeting.
  6. Status of testing at Regina
  7. Simulations
  8. Beam Tests, Cosmics
    1. Mini BCAL timing analysis File:Meet121113.pdf
  9. Other