Difference between revisions of "GlueX TOF Meeting, October 27, 2011"
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+ | * '''FSU''': Sasha Ostrovidov | ||
+ | * '''JLab''': Eugene Chudakov, Chuck Hutton, Mark Ito (chair), Simon Taylor, Tim Whitlatch, Beni Zihlmann | ||
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chuck will send chuck a new model | chuck will send chuck a new model |
Revision as of 12:55, 27 October 2011
Thursday, October 27, 2011
10:30 am EDT
JLab: CEBAF Center, Room F326
Agenda
- Announcements
- Minutes from the last meeting
- Mechanical design: Tim, Chuck
- PMT base design, rates, currents, amplification Beni
- Prototype status: Paul, Sasha
- Contract Status: Mark
Communication
Videoconference
- ESNet: 8542553
- EVO: EVO site
- direct meeting link
- Phone Bridge ID: 10 4388
Slides
Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2011-4Q
on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-4Q/ .
Minutes
Present:
- FSU: Sasha Ostrovidov
- JLab: Eugene Chudakov, Chuck Hutton, Mark Ito (chair), Simon Taylor, Tim Whitlatch, Beni Zihlmann
chuck will send chuck a new model standard light guide stays the same, half width needs to be redone,
beni,
operating at 0.02 mA no distinction between 10 and 8 stage tube 5 times less than max recommended current after 5000 hours gain down by factor of 2
checked ADC gain
have not looked at 8 stage tube yet
work on support of lightguides, phototubes
clamshell arrangement
pushing forward on holding steel still have not decided on attachment of pmt on light guide?
ask about Hall C experiment ask Bogdan about big byte
can it be arranged to have horizontal surfaces for replacement glueing
need to choose a glue to facilitate changing the phototube
need to have a design that allows replacement of tubes
now have splitters, doing measurements with all six splitters the same, takes about two weeks to do a single measurement, working with 50/50 now ill change wto 20/80
contract, can be done without complete specs