July 26, 2018 DIRC

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Meeting Information

GlueX DIRC Analysis Meeting
Thursday July 26, 2018
10:00 am, EDT
JLab room A110

Connection Using Bluejeans

  1. To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 846453895.
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  4. More information on connecting to bluejeans is available.

Agenda

  1. Announcements
  2. Optical box
    • Fabrication status update (Ernie and Jason)
      • Component QA and assembly status at Bates
      • Window procurement: delivery date to JLab?
      • Assembly sequence and testing plans at Bates
    • Dark box design: Air flow considerations and plan:
      • The power dissipated by each module is ~4 Watts, so the total in one optical box enclosure would be ~144 W.
      • Maintain temperature < 50 C inside the box to keep local FPGA temperatures < 80 C
      • Uniform flow over electronics boards (Jason)
    • PMT test fixture and cookies (Maria)
  3. Installation schedule discussion:
    • Requirements for mechanical install of optical box: Aug 10 installation schedule
      • Delivery of outer optical box (mirror box not required), window, flange, and gasket by August 10
      • Goals (reduce risk for final installation):
        • Test water tightness of optical box and interface with bar boxes
        • Flow water through full system and establish controls, N2 purge, etc.
  4. Mirror box laser alignment
  5. Cabling and DAQ integration
    • Cabling progress (Tim, Fernando)
    • Installation of VXS crate and SSP modules complete, initial integration into DAQ underway by Sasha and Sergei.
  6. Simulation studies (Maria and Roman)
    • Finalizing DIRC "as-build" geometry: support frames, etc. (Yunjie, Maria)
    • Documentation of LUT algorithm by Maria
    • Implementation of reconstruction in PID library underway (Justin)
  7. MAPMT testing (Bill and Andrew)
  8. Commissioning plans
  9. Reminder: Addressing ERR review recommendations
    • Recommendations pertaining to Fall 2018 DIRC commissioning should be addressed by August 20 (close of Hall D for beam)
  10. AOB