GlueX TOF Meeting, October 27, 2011
Thursday, October 27, 2011
10:30 am EDT
JLab: CEBAF Center, Room F326
Contents
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
Review of Minutes from the Last Meeting
We went over the minutes of the October 13th meeting.
- Chuck has been in contact with Ian Winger. Ian will send a new model of the half-width light guide.
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