[Halld-pid] Start Counter Meeting Minutes, May 1, 2014

[Mark Ito]

Colleagues,

Please find the minutes below and at

https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_May_1,_2014#Minutes 
.

   -- Mark
_______________________________________________

GlueX Start Counter Meeting, May 1, 2014
Minutes

    Present:
      * FIU: Werner Boeglin, Eric Pooser
      * JLab: Chuck Hutton, Mark Ito (chair), Bruce Lenzer, Tim Whitlatch,
        Beni Zihlmann

Review Minutes from Previous Meeting

    We looked at the [21]minutes from the April 17 meeting.

    We reviewed Eric's report that the scintillators had arrived at McNeal
    in good shape and that they were preparing for machining.

Slide Show from Bruce's Visit to Eljen

    Bruce Lenzer showed some photos from his recent visit to Eljen. Find
    the photos [22]here and find a video recording his presentation
    [23]here, starting at the 11:30 mark.

Collaboration Meeting

    Werner will be at JLab for the meeting and will give the Start Counter
    update.

Detector Construction Status

    Eric gave the report.
      * The assembly jig is in the FIU machine shop. It is 95% complete.
        All related materials have arrived. The only thing remaining is to
        fit the shaft to the bearings.
      * A wrapping jig (for the aluminum foil) has been designed and
        submitted to the shop. It should be done next week.
      * It should take two to three weeks to test all 50 scintillators.

Support Structure

    Chuck and Tim gave the report.
      * Both the Rohacell and the aluminum ring are out for fabrication.
        The two hubs are both machined. All should come in next week.
      * The structure will likely take 2.5 weeks to arrive at FIU.
      * Eric asked about handling the pieces. Tim will re-check with the
        vendor to make sure that all pieces are kept as clean as possible,
        with handling kept to a minimum.
      * Helicoils will be used for the threaded holes for attaching the
        electronics as a precaution to prevent stripping threads.
      * The washers are in hand for the test fit of the electronics to the
        aluminum ring. They are in the range of 30 to 50 mils.

Schedule

    We set a tentative schedule:
      * June 3: Readiness Review
      * June 17: Nick Sandoval to FIU to set-up electronics.

References

   21. 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_April_17,_2014#Minutes
   22. https://halldweb1.jlab.org/talks/2014-2Q/Site%20Pictures/
   23. https://bluejeans.com/s/3HuA/

-- 
Mark M. Ito, Jefferson Lab, marki at jlab.org, (757)269-5295