GlueX TOF Meeting, April 1, 2011

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Location, Time

Friday, April 1, 2011
2:00 pm EDT
JLab: CEBAF Center, Room F326


  1. Announcements
  2. Minutes from the last meeting
  3. Prototype Status
  4. Contract Status



  1. ESNet: 8542553
  2. EVO: EVO site


  1. dial:
  2. enter access code followed by the # sign: 3421244#


Talks can be deposited in the directory /group/halld/www/halldweb/html/talks/2011-2Q on the JLab CUE. This directory is accessible from the web at .



  • FSU: Sasha Ostrovidov
  • JLab: Mark Ito (chair), Simon Taylor

Prototype Work

  • The CAEN TDC arrived at FSU. It has a 25 ps least count. Sasha tested it with a pulser and got a resolution of 40 ps. A CAEN representative thinks that the TDC needs re-calibration. A procedure has been sent to Sasha; he will try it and see if performance improves.
  • The problem reported last time with hits from channels with no signals connected was due to a faulty connector on the flat cable.
  • The set-up (using the F1 TDC) is still infected with multiple-timing-peak disease.


  • The FSU Physics machine shop can make light guides on their computer controlled milling machine. It should take about two hours per piece.
  • The technique for bending has not been decided on. Some experiments have been done.


  • The Advanced Procurement Plan being circulated for signatures.