Difference between revisions of "GlueX TOF Meeting, April 12, 2012"

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Mark finally got the proposal materials from Procurement. He will be sending it out to the Technical Review committee soon.
 
Mark finally got the proposal materials from Procurement. He will be sending it out to the Technical Review committee soon.
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==PMT Purchase==
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Procurement received a bid from a vendor. Evaluation is underway.
  
 
==Calibration and Alignment==
 
==Calibration and Alignment==

Revision as of 12:27, 12 April 2012

Thursday, April 12, 2012
10:00 am EDT
JLab: CEBAF Center, F326/327

Agenda

  1. Announcements
  2. Review of last TOF bi-weekly meeting
  3. Mechanical design: Tim, Chuck
  4. Prototype status: Paul, Sasha
  5. TDC choice: all
  6. Contract Status: Mark, Paul
  7. Calibration and Alignment
  8. 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/2012-2Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2012-2Q/ .

Chairman's Cell Phone

(757)504-0664

Minutes

Present:

  • FSU: Paul Eugenio, Sasha Ostrovidov, Randall Smith, Ian Winger
  • JLab: Eugene Chudakov, Chuck Hutton, Mark Ito (chair), Tim Whitlatch, Beni Zihlmann

Contract

Mark finally got the proposal materials from Procurement. He will be sending it out to the Technical Review committee soon.

PMT Purchase

Procurement received a bid from a vendor. Evaluation is underway.

Calibration and Alignment

Sasha agreed to write something up about how we plan to calibrate the TOF. Mark suggested with a wiki page outlining the ideas; essentially a conceptual design of the calibration process. We will need something like this before the Software Review in early June. A full GlueX note should follow when plans are more detailed.

Technical Design Report Contribution

Paul agreed to look over what exists now and update the appropriate section.

Mechanical Design

Tim and Chuck presented a [?? new idea for the mechanical support]. The new design was motivated by two requirements, (a) that we support the light guides at some point close to the PMT's and (b) that we not put pressure on the scintillator surfaces. This lead to a scheme where the light guides are supported at two points, one near the joint with the scintillator as in the previous design, but also with a collar just on the in-board side of the steel magnetic shield.

Chuck will draw up another iteration of the concept and send it to the FSU design team for their review and comments.

Once a design is agreed on, we will build a full-scale mock-up of the center section of the array to test the ideas. The counter line-up will be:

  1. full
  2. half-width
  3. half-length
  4. half-length
  5. half-width
  6. full