Difference between revisions of "GlueX TOF Meeting, October 25, 2012"

From GlueXWiki
Jump to: navigation, search
(copy of last time)
 
(adjusted)
Line 1: Line 1:
 
GlueX TOF Meeting<br>
 
GlueX TOF Meeting<br>
Thursday, September 27, 2012<br>
+
Thursday, October 25, 2012<br>
 
10:00 am EDT<br>
 
10:00 am EDT<br>
 
JLab: CEBAF Center, F326<br> <!-- room reservation good through 6/20/2013 -->
 
JLab: CEBAF Center, F326<br> <!-- room reservation good through 6/20/2013 -->
Line 7: Line 7:
  
 
# Announcements
 
# Announcements
# Review of [[GlueX TOF Meeting, September 13, 2012#Minutes|last TOF bi-weekly meeting]]
+
# Review of [[GlueX TOF Meeting, September 27, 2012#Minutes|last TOF bi-weekly meeting]]
 
# Mechanical design
 
# Mechanical design
# Contract status -> EVMS status
+
# Contract status
 
# Calibration and Alignment
 
# Calibration and Alignment
 
# Technical Design Report contribution
 
# Technical Design Report contribution
Line 24: Line 24:
 
==Slides==
 
==Slides==
  
Talks can be deposited in the directory <code>/group/halld/www/halldweb1/html/talks/2012-3Q</code> on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2012-3Q/ .
+
Talks can be deposited in the directory <code>/group/halld/www/halldweb1/html/talks/2012-4Q</code> on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2012-4Q/ .
 
+
=Minutes=
+
 
+
Present:
+
* '''FSU''': Paul Eugenio, Sasha Ostrovidov
+
* '''JLab''': Chuck Hutton, Mark Ito (chair), Elton Smith, Tim Whitlatch, Beni Zihlmann
+
 
+
==Mini-TOF Construction==
+
 
+
Paul reports that construction materials are coming in. There was a delay on a large steel channel, which we are getting from a company near the Lab. We had to buy a 20 foot piece though only 10 is needed.
+
 
+
==TOF Procurements==
+
 
+
* Materials are arriving for the gluing jig.
+
* Specifications for the scintillator were sent to Eljen and Saint Gobain. Paul has only heard back from Eljen.
+
* The AJ200 scintillator (new designation) is being produced at Eljen on revamped machines. We can get scintillator from them sooner than anticipated, within six weeks of order.
+
* Additional quotes were requested for UVT acrylic rods. Paul found a company that can provide the same material as the vendor we have been using, but with a better delivery schedule. 240 feet can be delivered in six weeks. Two rods have been purchased from the new company. They will be evaluated. Elton suggested using a laser and visually observing the amount of scattering to do a quick comparative/qualitative evaluation with respect to the material already in hand.
+
* Paul is trying again to get ESR daylighting film from 3M in long rolls rather than small sheets.
+
 
+
==TOF Construction==
+
 
+
* The gluing jig has been redesigned to allow gluing of nine modules at a time, with adequate spacing between modules.
+
* Ian Winger is working on a jig to help with smoothing the wrapping operation. A U-channel will hold the wrapping and scintillator.
+
* Paul has been doing tests with RTV for mounting attaching the PMT's to the light guides. He got two types, RTV 615 and RTV 655, from Momentum Products (a spin-off of GE silicon). RTV 615 has been used at other experiments. Initial tests look good; a twenty pound weight was suspended from the far end of the PMT and the joint held. The PMT was removed with a razor blade and the surfaced cleaned up nicely with Kimwipes and silicone solvent.
+
 
+
==Contract==
+
 
+
Mark and Paul will get together after the meeting by phone to discuss the Change Request for supporting EVMS accounting now that the contract is in place.
+

Revision as of 17:47, 24 October 2012

GlueX TOF Meeting
Thursday, October 25, 2012
10:00 am EDT
JLab: CEBAF Center, F326

Agenda

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

Communication

Videoconference

  1. ESNet: 8542553
  2. EVO: EVO site

Slides

Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2012-4Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2012-4Q/ .