Apr 2, 2009 Calorimetry

Teleconference Time: 4:45 p.m. EST

• 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

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. From stand-alone MC, or previous notes, collect the distribution of photons expected for numbers of photons for various showers (especially at low energies, e.g. 50 MeV - 200 MeV) and typicall positions (i.e angles) along the calorimeter. (Andrei).
4. JLab to have some informal discussions on various cooling concepts to be presented at the next meeting.[http://www.jlab.org/~huttonc/siPM_layout.ppt cooling}

Documents to Review

1. Fiber Summaries (JLab)
   • Kuraray measurements of light output
   • Kuraray measurements of attenuation length
2. Fiber Measurements
   • Kuraray Fibre Tests - Regina
3. Simulation BCAL Dark Hits GlueX-doc-1231

Tentative Agenda

1. Announcements
2. FCAL Update
3. Simulations
   1. BCAL Dark Hits (Matt)
      1. Media:Res_vs_dkrate.pdf
      2. Media:Dark_rate_pi0_compare.pdf
4. BCAL Update
   1. Preparations for construction
   2. Results of Fiber Tests
   3. Cooling of BCAL Readout
5. Review of Action Items