November 5, 2018 DIRC

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Meeting Information

GlueX DIRC Meeting
Monday November 5, 2018
1:00 pm, 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.
  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.

Agenda

  1. Announcements
    • Updated schedule from JLab management, full energy running through 11/26 and CompCal commissioning for all of December
    • All components need to be at JLab and tested by end of December, in preparation for January install
    • General Particle ID Working Group announcement, discuss integration of DIRC to physics analysis. Please respond to Doodle poll.
  2. Optical box
    • Fabrication status update (Ernie and Jason)
      • Box window flange modification at Lesker (Ernie/Tim)
        • After work by another vendor, lower (beam right) box has reached to flatness of +/-0.5 mm (+/- 0.022"). Reminder: started with +/- 1 mm measured by JLab survey
        • Latest: plan to setup for machining down a skim cut down to +/- 0.25 mm?
        • Upper (beam left) box packaged Friday and sent to Lesker today
      • LED source, fiber feedthroughs and diffuser (All)
      • Dark box enclosure: fabrication and testing (Jason)
      • Quartz window (with modified flange) (Ernie)
    • Testing in EEL 226
  3. PMT fit results (Andrew)
  4. Software/simulations
  5. Addressing ERR review recommendations
    • Recommendations pertaining to DIRC commissioning should be addressed before installation.
  6. AOB