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
- 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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Agenda
- 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.
- 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)
- Stephanie's drawings: projected angles 1" diffuser
- Dark box enclosure: fabrication and testing (Jason)
- Quartz window (with modified flange) (Ernie)
- Box window flange modification at Lesker (Ernie/Tim)
- Testing in EEL 226
- Darkbox cabling from Jason
- Cabling tests and plans for dark box tests (Bill/Andrew)
- Chris will make 8' long LV and HV cables to complete
- Fabrication status update (Ernie and Jason)
- PMT fit results (Andrew)
- Software/simulations
- Finalizing DIRC "as-built" geometry: support frames, bar box internals, etc. (Yunjie)
- LED generator (Yunjie)
- Time-based studies and adding # photons to LUT likelihood (Maria)
- Alignment updates (Cris)
- Software overview and tasks (All)
- Addressing ERR review recommendations
- Recommendations pertaining to DIRC commissioning should be addressed before installation.
- AOB