Difference between revisions of "September 3, 2019 DIRC"

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Tuesday September 3, 2019<br>
 
Tuesday September 3, 2019<br>
 
1:00 pm, EDT<br>
 
1:00 pm, EDT<br>
−
Hall D Counting House <br>
+
CC F326 <br>
  
 
== Connection Using Bluejeans ==
 
== Connection Using Bluejeans ==
Line 17: Line 17:
  
 
# Announcements:
 
# Announcements:
 +
#* New meeting time?
 
# Installation work:
 
# Installation work:
−
#* South OB Mirror replacement update
+
#* South OB mirror replacement update
−
#*** Strongback modification and anodization (Stephanie, Mark)
+
#** Strongback modification and anodization (Stephanie, Mark)
−
#** Mirror studies and water tests (Bill, All)  [https://logbooks.jlab.org/entry/3709114 Surface voltage test] [https://logbooks.jlab.org/entry/3713852 losing coating] [https://logbooks.jlab.org/entry/3716403 latest update] [https://logbooks.jlab.org/entry/3716606 summary table]
+
 
#** "Sandwich" (rear surface) mirror option to protect reflective surface (current priority for testing)
 
#** "Sandwich" (rear surface) mirror option to protect reflective surface (current priority for testing)
−
#*** Reflectivity measurements and plans for further samples ([https://halldweb.jlab.org/DocDB/0035/003581/002/DIRC_meeting_20_Aug.pdf Bill], All)
+
#*** [https://halldweb.jlab.org/DocDB/0041/004160/001/reflectivity_9.3.19.pdf Reflectivity measurement results] (Bill, Andrew, Justin, 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 +/- 0.01 mrad for nominal and 8.06 +/- 0.01 mead for 1mm glass sandwich. [[File:Thetac zoom.png]]
+
−
#** [https://halldweb.jlab.org/wiki/images/5/53/Expected_lambda_distribution_082019.pdf More on expected wavelength distribution] (Yunjie)
+
 
#** Deadline for decision on mirror replacement is September 5.  Complete schedule from Tim after this date for installation before Fall run.
 
#** Deadline for decision on mirror replacement is September 5.  Complete schedule from Tim after this date for installation before Fall run.
−
#* North box installation progress (Tim, All)
+
#* North box installation progress (Mark, All)
−
#** Planning for extraction of mirror box in situ, for mirror replacement
+
 
#* Next steps (All)
 
#* Next steps (All)
 
# [[Spring 2019 DIRC Commissioning|Spring 2019 DIRC Commissioning Analysis]] (All)
 
# [[Spring 2019 DIRC Commissioning|Spring 2019 DIRC Commissioning Analysis]] (All)
 
#* Commissioning LUT analyses (All)
 
#* Commissioning LUT analyses (All)
 
#** Cherenkov ring fit (Roman)  
 
#** Cherenkov ring fit (Roman)  
−
#**[https://halldweb.jlab.org/wiki/images/e/e9/Commissioning_AA.pdf Systematics Survey vs Momentum Direction Rotation vs G4 Simulation] (Ahmed)  
+
#** [https://www.dropbox.com/s/zfvslbyc0mf0521/presentation_3sep_2019.pdf?dl=0 Commissioning Analyses Update] (Ahmed)  
−
#***[http://web-docs.gsi.de/~aali/ahmeddirc/pages/glx_corr_mom.html  Momentum Direction Rotation (Best SPR Method)]
+
−
#***[http://web-docs.gsi.de/~aali/v2.mp4 Visualization 1] [http://web-docs.gsi.de/~aali/v3.mp4 Visualization 2]
+
−
#**[https://halldweb.jlab.org/wiki/images/7/73/Separation_v1_Ahmed.pdf Pion/Kaon Separation Power 1st version]
+
 
#* Commissioning FastDIRC update (Yunjie)
 
#* Commissioning FastDIRC update (Yunjie)
 
# Software/simulations
 
# Software/simulations

Latest revision as of 12:59, 3 September 2019

Meeting Information

GlueX DIRC Meeting
Tuesday September 3, 2019
1:00 pm, EDT
CC F326

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:
    • New meeting time?
  2. Installation work:
    • South OB mirror replacement update
      • Strongback modification and anodization (Stephanie, Mark)
      • "Sandwich" (rear surface) mirror option to protect reflective surface (current priority for testing)
      • Deadline for decision on mirror replacement is September 5. Complete schedule from Tim after this date for installation before Fall run.
    • North box installation progress (Mark, All)
    • Next steps (All)
  3. Spring 2019 DIRC Commissioning Analysis (All)
  4. Software/simulations
    • FastDIRC geometry implementation and alignment work (Cris/Yunjie)
  5. Software overview and tasks (All)
  6. AOB
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