[Halld-pid] start counter notes, June 16, 2011

Mark M. Ito marki at jlab.org
Thu Jun 16 15:46:29 EDT 2011


Some notes from my conversation with Werner:

Prototype Tests

    FIU has received five scintillators from Plastic Craft. These are cut
    and bent to a functional shape for the start counter. They have not
    been tested yet.

    Initially they will be tested with the 6 mm x 10 mm x 1.4 m light guide
    that Werner used in previous tests. A fine-mesh tube will be used. Lei
    is also working on making a light guide from the fibers received from
    Saint Gobain.

    The large dark box to enclose the prototype is almost done.

SiPM's

    We have not succeeded in getting newer configurations of SiPM's for
    Werner to test. We need to meet with Fernando to discuss options.

MOU

    A draft with changes from Glenn was sent to Allison on Tuesday. She
    returned a marked up draft soon after. Mark will incorporate her
    changes and answer questions. If that version looks OK, then it is off
    the the Concurrence Chain.

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