Jun 5, 2012 Calorimetry

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+Canada
  • +1-303-248-0285 : International
  • then enter participant code: 3421244# (remember the "#").
  • or www.readytalk.com (and code without the #)

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(s)

1. Cables
   • Establish cabling for Bcal and Fcal into racks
2. Mechanical
   • Check features in Fcal support structure for cable passages and plexiglas support, and space between window frames on glass and plexiglass (Elton, Tim)
3. Monitoring
   • Check status of monitoring control boards at JLab (David).

Tentative Agenda

1. Announcements
2. Review of Action Items
3. Monitoring
   1. LED system on Mini BCAL
      • JLab bench testing (Tara)
4. Cable Labels
5. FCAL
   1. Construction Status
   2. 2011 Hall B FCAL Beam Test (John)
6. BCAL
   1. Cosmics at Regina
   2. BCAL Beam Tests 2012
7. USM update
   1. SiPM Update (Javiera)
   2. Working Point Selection (Orlando)
8. TDR update
   1. Instructions for the TDR (You must be logged into the wiki to access this page).
   2. We need to start revising Chapter 4 Detector, Section 4.3 Calorimetry.
   3. Calibration of Calorimeters
9. Simulations/Reconstruction
10. Any other business

Minutes

Attendees: David, Beni, Tara (JLab), Giorgos, Stratos (Athens), Will, Javiera, Orlando, Serguei (Chile), Andrei, Zisis (Regina)

1. Announcements: none.
2. Review of Action Items
   1. Cabling input from both FCAL has been sent in; BCAL will be done by tomorrow.
   2. Nothing new on the FCAL support structure.
   3. See discussion below on the LED monitoring boards.
3. Monitoring
   1. David and Tara showed results (see above link) from their tests. Breakthrough: the far:near signal ratio on the scope was 3:1 as expected, potentially signaling the green light for Athens to place the orders. The manual bias allowed only +1V intervals, so the SiPM gains may not be exactly the same, but we feel we are in the ball park. Some optical cross talk was seen as well, and will be investigated further. David, Andrei and Zisis will hammer out a run plan.
4. FCAL
   1. Construction Status
   2. FCAL Beam Test: nothing to report.