October 8, 2018 DIRC

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Meeting Information

GlueX DIRC Meeting
Monday October 8, 2018
1:00 pm, EDT
JLab room A110

Connection Using Bluejeans

  1. To join via Polycom room system go to the IP Address: (bjn.vc) and enter the meeting ID: 846453895.
  2. To join via a Web Browser, go to the page [1] https://bluejeans.com/846453895 .
  3. To join via phone, use one of the following numbers and the Conference ID: 846453895
    • US or Canada: +1 408 740 7256 or
    • US or Canada: +1 888 240 2560
  4. More information on connecting to bluejeans is available.


  1. Announcements
    • JLab management still deciding how to make up lost time this Fall
    • Preliminary plan from Hall D at CM: CompCal is priority for Fall, but continue with DIRC installation in parallel
  2. Optical box
    • Fabrication status update (Ernie and Jason)
      • Mirror boxes delivered to JLab! (Ernie)
      • Warping of window flange and plan to address at Lesker (Ernie/Tim)
      • Dark box enclosure (Jason)
      • Quartz window (with modified flange) (Ernie)
    • Testing in ESB
      • Mirror box laser alignment (Bill)
    • Installation schedule: [2]
  3. DAQ integration
  4. Slow controls
  5. Software/simulations
    • Finalizing DIRC "as-built" geometry: support frames, bar box internals, etc. (Yunjie)
    • LED generator (Yunjie)
    • Time-based studies (Maria)
    • Software overview and tasks (All)
  6. Addressing ERR review recommendations
    • Recommendations pertaining to Fall 2018 DIRC commissioning should be addressed before October installation (required for new beam time request)
  7. AOB