View source for February 5, 2021 DIRC

== Meeting Information ==
GlueX DIRC Meeting<br>
Friday February 5, 2021<br>
10:00 am, ET<br>
'''Remote only'''

== Connection Using Bluejeans ==

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== Agenda ==

# Announcements
#* Collaboration Meeting: [https://halldweb.jlab.org/wiki/index.php/GlueX-Collaboration-Feb-2021 Feb 17-19].  DIRC update talk by Bill planned for Wed afternoon.
#* [https://tipp2021.triumf.ca/abstracts.html TIPP Conference:] abstracts due Feb 7 (Sunday) 
# [https://halldweb.jlab.org/wiki/index.php/Mirror_prototype_test_plan#Proposed_prototypes Mirror prototype test plan] (All)
#* Discussion of prototypes and ongoing tests (Bill, All)
#** Half-size prototype: test began on [https://logbooks.jlab.org/entry/3860795 Dec 22], inspections [https://logbooks.jlab.org/entry/3865870 Jan 19] and Feb 1 show air gap is maintained over 6 weeks
#** Full-size 3-segment mirror prototypes: test began on [https://logbooks.jlab.org/entry/3864139 Jan 22] with weekly inspections:  most recent [https://logbooks.jlab.org/entry/3865871 Feb 1] looks great
#** [https://logbooks.jlab.org/entry/3865872 Top/bottom mirror prototype:] plan to begin water test on Monday
#* North mirror box un-installed and inspected: (All)
#** [https://logbooks.jlab.org/entry/3865875 Inspection of mirrors with dye test]: one of 3-component mirrors remained air tight.
#** Removing all mirrors and plan to re-anodize strongback at local shop
#* Next steps in mirror process: (Justin)
#** Final modifications to mirror sizes (Justin), then order borofloat (several weeks lead time for previous order)
#** Production mirror assembly planned for clean hood and water tested in Hall D
#* Other thoughts or suggestions?
# Diffuser status (Bill)
# DIRC commissioning analyses and 2020 studies (All)
#* [https://halldweb.jlab.org/wiki-private/index.php/Spring_2020_Dataset_Summary#Full_REST_Production Spring 2020 data production status]: all 8 batches now in progress for REST reconstruction (Justin)
#** [https://halldweb.jlab.org/wiki-private/index.php/Spring_2020_Analysis_Launch Analysis launches] completed for batches 3, 4, 5, 8
#* Geometric reconstruction update
#** Update on shift of the time difference (Roman)
#** [https://halldweb.jlab.org/wiki/images/1/1a/CherenkovPDFs2.pdf Cherenkov PDF] (Ahmed) 
#* FastDIRC update (Yunjie)
# AOB