[Halld-pid] Minutes, GlueX TOF Meeting, Mar. 4 '11

[Mark M. Ito]

Find the minutes at 
http://www.jlab.org/Hall-D/software/wiki/index.php/GlueX_TOF_Meeting%2C_March_4%2C_2011#Minutes 
and below as text.

   ==

GlueX TOF Meeting, March 4, 2011
Minutes

    Present:
      * FSU: Sasha Ostrovidov
      * JLab: Mark Ito (chair), Elton Smith, Simon Taylor, Tim Whitlatch,
        Beni Zihlmann


Review of minutes from the last meeting

    We reviewed the minutes of the [30]February 18th meeting.
      * Sasha asked Beni what he did to get the 41 ps intrinsic resolution
        with the F1 TDC. Beni did his test putting two versions of the same
        signal into different channels of the TDC. Sasha will try this.
      * Sasha is waiting for a 25 ps least count TDC from CAEN to arrive.
      * Geometry. We had a rather meandering discussion of how best to
        arrange the TOF counters. Options on the table include:
          1. Widening the counters from 6 cm to 8 cm to allow PMT's to be
             in a collinear arrangement.
          2. Shifting alternate counters (in z) enough to allow straight
             light guides.
          3. Collinear counters with curved light guides to avoid
             interference between PMT's from neighboring counters.


Prototype Status

    Sasha showed several [32]plots of time differences from the prototype,
    both from the counter under test and trigger counters. Some of them
    exhibit strange multiple peaks. We will ship another TDC to FSU in
    parallel with continued efforts to understand what is going on.

Support/Installation Concept

    We looked at [34]a slide, from nearly two years ago, of the concept of
    supporting the TOF. This is still the "current" concept.

Contract Status

    Mark has started on an Advanced Procurement Plan (APP), a schedule for
    putting the construction contract into place. Elton's Fastrack schedule
    will provide input.

    Retrieved from 
"http://www.jlab.org/Hall-D/software/wiki/index.php/GlueX_TOF_Meeting%2C_March_4%2C_2011"

References

   30. 
http://www.jlab.org/Hall-D/software/wiki/index.php/GlueX_TOF_Meeting%2C_February_18%2C_2011#Minutes
   32. https://halldweb1.jlab.org/talks/2011-1Q/tof_20110304/
   34. 
http://www.jlab.org/Hall-D/software/wiki/images/f/fd/TOF_install_concept.png