Difference between revisions of "August 20, 2019 DIRC"
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#** "Sandwich" (rear surface) mirror option to protect reflective surface | #** "Sandwich" (rear surface) mirror option to protect reflective surface | ||
#*** Reflectivity measurements and plans (Bill, All) | #*** Reflectivity measurements and plans (Bill, All) | ||
− | #*** Simulation of nominal first surface mirror (black) and sandwich mirror with 1mm glass on top of reflective surface (blue). Single photon resolution not degraded by adding thin glass on top of reflective surface. | + | #*** Simulation of nominal first surface mirror (black) and sandwich mirror with 1mm glass on top of reflective surface (blue). Single photon resolution not degraded by adding thin glass on top of reflective surface: 8.16 mrad for nominal and 8.06 mead for 1mm glass sandwich. |
[[File:Thetac zoom.png]] | [[File:Thetac zoom.png]] | ||
#* Bar box gas fitting issue resolved (Mark and Tim) | #* Bar box gas fitting issue resolved (Mark and Tim) |
Revision as of 11:41, 20 August 2019
Meeting Information
GlueX DIRC Meeting
Thursday August 20, 2019
1:00 pm, EDT
Hall D Counting House
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.
- To join via a Web Browser, go to the page [1] https://bluejeans.com/846453895 .
- 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
- More information on connecting to bluejeans is available.
Agenda
- Announcements:
- Fall 2019 run delayed: expected to start DIRC commissioning November 25
- Installation work:
- South OB Mirror replacement update
- Mirror removal and strongback anodizing (Bill, Mark, All)
- Mirror studies and water tests (Bill, All) Surface voltage test losing coating latest update summary table
- "Sandwich" (rear surface) mirror option to protect reflective surface
- Reflectivity measurements and plans (Bill, All)
- Simulation of nominal first surface mirror (black) and sandwich mirror with 1mm glass on top of reflective surface (blue). Single photon resolution not degraded by adding thin glass on top of reflective surface: 8.16 mrad for nominal and 8.06 mead for 1mm glass sandwich.
- South OB Mirror replacement update
- Spring 2019 DIRC Commissioning Analysis (All)
- Commissioning LUT analyses (All)
- Cherenkov ring fit (Roman)
- Systematics [Survey vs Momentum Direction Rotation vs G4 Simulation ] (Ahmed)
- Commissioning FastDIRC update (Yunjie)
- Commissioning LUT analyses (All)
- Software/simulations
- FastDIRC geometry implementation and alignment work (Cris/Yunjie)
- Software overview and tasks (All)
- AOB