May 28, 2009 Calorimetry

Teleconference Time: 11:00 a.m. EST

• EVO session
• Phone:
  • +1-800-377-8846 : US
  • +1-888-276-7715 : Canada
  • +1-302-709-8424 : International
  • then enter participant code: 39527048# (remember the "#")

Items for followup from previous meeting(s)

1. Resolution studies (Blake)
   • Develop criteria for evaluating resolution studies
   • Study impact of inactive material at the end of BCAL on acceptance.
   • Check what configuration (thresholds, step sizes, stack? parameters for secondaries, etc) is being used for the Hall D simulations (Regina)
2. Review options for import/export to Chile (loans, donations, transfers, etc.)
3. Documentation on fiber first-article
4. Design goals for SiPM electronics
5. Preliminary specifications for Bcal electronics readout

Tentative Agenda

1. Announcements
2. Review of Action Items
3. Calibration
4. FCAL Update
5. Simulations
6. BCAL Fabrication
   • Contract (George)
   • Preparations for construction (Zisis)
   • Report on First-article fibers (Zisis)
     • March: Kuraray Fibre Tests - March 19, 2009
     • This week: Media:FiberAtten-20090528.pdf
7. BCAL Readout
   • Update from USM (Will)
   • Readout specifications using SiPMs (Fernando)
   • Rates in the BCAL [1] (Sasha) and Beni
   • Light guide efficiency for FM PMTs (GlueX-doc-1279 pp 12-19) (Elton)
   • Review of readout options (tentative July 14) discussion

Minutes

1. Announcements
   • Over the next month, candidates will start interviewing for Physics APM and Hall D group leader. First candidate interviews today.
2. Review of Action Items
   1. Import/export issues in Chile. Issues are being clarified, but work in this direction will continue.
      • Some detectors paid for by UN had tariffs waived
      • Taxes and tariffs are reduced or waived when the University pays for related research activities. However, many grants (such as Will's) do not go through the university accounting system.
      • Business and scientific personnel continue to investigate the nuisances.
      • Zisis: University is investigating how to ship the baby calorimeter to Chile. The 260 lbs 2 ft section arrived from Alberta this week. Investigating options for cutting it into smaller sections. Will suggested that the cost for shipping the entire segment be requested. It is possible that the shipping cost is not directly related to weight.
3. Calibration
   • Christina has sent a 20 p. report on calibration to Zisis for feedback and should be placed on the portal soon.
4. FCAL Update
5. Simulations
6. BCAL Fabrication
   • Contract (George)
   • Preparations for construction (Zisis)
   • Report on First-article fibers (Zisis)
     • March: Kuraray Fibre Tests - March 19, 2009
     • This week: Media:FiberAtten-20090528.pdf
7. BCAL Readout
   • Update from USM (Will)
   • Readout specifications using SiPMs (Fernando)
   • Rates in the BCAL [2] (Sasha) and Beni
   • Light guide efficiency for FM PMTs (GlueX-doc-1279 pp 12-19) (Elton)
   • Review of readout options (tentative July 14) discussion