Revision as of 14:39, 29 September 2011

Thursday, September 29, 2011
10:00 am EDT
JLab: CEBAF Center, Room F326

Agenda

1. Announcements
2. Minutes from the last meeting
3. Mechanical design: Tim, Chuck
4. PMT base design, rates, currents, amplification Beni
5. Prototype status: Paul, Sascha
6. Contract Status: Mark
   • Schedule

Communication

Videoconference

1. ESNet: 8542553
2. 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/2011-3Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-3Q/ .

Minutes

Present:

• FSU: Paul Eugenio, Sasha Ostrovidov
• JLab: Chuck Hutton, Mark Ito (chair), Beni Zihlmann

Mechanical design

We had another design meeting last Thursday, September ??? where Chuck showed [??? slides] of his work thus far in modifying the design to fit in the FCAL/TOF support structure. We reviewed some of those ideas. They appear to give us the needed clearance.

Chuck has been working on the mechanical support for the TOF. He showed [??? some slides] sketching ideas thus far, especially for holding the vertically-oriented plane.

new progress CAEN TDC stops triggering sergey b has not seen it one of the six pmt, signal 15 % strange pulse shape, very broad 110 ps mean time per plane

ian and chuck will talk this afternoon

paper on xp2020

need photoelectons per mev can be measured with mips if tube gain is known