GlueX TOF Meeting, August 30, 2012

GlueX TOF Meeting
Thursday, August 30, 2012
10:00 am EDT
JLab: CEBAF Center, F326

Agenda

1. Announcements
2. Review of last TOF bi-weekly meeting
3. Mechanical design
4. Prototype status
5. TDC Purchase
6. Contract Status
7. Calibration and Alignment
8. Technical Design Report contribution

Communication

Videoconference

1. ESNet: 8542553
2. EVO: EVO site
   • meeting link
   • Phone bridge ID: 13 7104

Slides

Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2012-3Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2012-3Q/ .

Minutes

Present:

• FSU: Paul Eugenio, Sasha Ostrovidov, Randall Smith, Ian Winger
• JLab: Fernando Barbosa, Mark Ito (chair), Tim Whitlatch, Beni Zihlmann

Re-cap of Last Meeting

Paul summarized items discussed at the last meeting, on August 16.

• There was a short discussion of items purchased
• FSU gave an update on mini-TOF construction
• There was discussion of changing materials due to length and weight.
• Sasha presented ideas on calibration.

Electronics

TDCs have been ordered signal distribution issues need to be planned, additional modules need to be built by us hall b has prototypes, sergey thinks they will need a new design

gaining experience with flash ADC's FSU has VME 64x crate, pin removed for serial connector must use internal clock or provide external clock fernando will look and see what is available production units will go to UMass in a month late oct, modules via umass should arrive

Mini-TOF Update

Randall

package of bent plates arrived, some may not work not stainless making light guides long versions made for first time pmt sleeves completed shield holders completed all light guides manufactured more material requested mark will order

paul and ian will meet on glueing fixture for 5 paddles at once box of plates delivered to old central receiving

Calibration and Alignment

A new version of the calibration document will be distributed shortly.