Nov 13,2012 Readout
From GlueXWiki
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)
Contents
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
- 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
- Announcements
- Review of Action Items
- Monitoring
- Update from USM
- Status of testing at JLab
- Status of testing at Regina
- Simulations
- Beam Tests, Cosmics
- Mini BCAL timing analysis File:Meet121113.pdf
- Other
Minutes
Attending: Elton, David, Ivan , Beni, Yi, Eugene (JLab); Will, Alam, Orlando, Ricardo, Hayk (USM); Shawn, Zisis (UofR); Christina, George (Athens)
- Announcements
- Review of Action Items
- Monitoring (Christina, George was on EVO but we were not able to hear him)
- Fcal first article boards have arrived in Geneva
- Will start populating them as soon as they arrive in Athens
- 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)
- 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.
- Fcal first article boards have arrived in Geneva
- Update from USM
- 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.
- Status of testing at Regina
- Simulations
- Beam Tests, Cosmics
- Mini BCAL timing analysis File:Meet121113.pdf
- Other