Difference between revisions of "JEF meeting, Nov 23, 2015"

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(Minutes)
(Minutes)
 
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Attendees:  J. Feng, L. Gan, D. Mack, A. Somov, S. Taylor
 
Attendees:  J. Feng, L. Gan, D. Mack, A. Somov, S. Taylor
 
*Plans for studying the effect of the fringe field from the solenoid magnet on PMT performance are on hold until a magnet has been identified
 
*Plans for studying the effect of the fringe field from the solenoid magnet on PMT performance are on hold until a magnet has been identified
** J. Feng presented a [[File:mfdatatable.pdf | draft of a plan]]draft of a plan that calls for varying the number of mu-metal layers up to 5 and testing the extent to which the mu-metal sticks out beyond the face of the PMT
+
** J. Feng presented a draft of a plan [[File:mfdatatable.pdf]] that calls for varying the number of mu-metal layers up to 5 and testing the extent to which the mu-metal sticks out beyond the face of the PMT
 
** According to Sascha all other parts (preformed mu-metal tubes, PMT, electronics,...) besides the magnet are in place.
 
** According to Sascha all other parts (preformed mu-metal tubes, PMT, electronics,...) besides the magnet are in place.
 
** After the meeting Dave M. located a Helmholtz coil in the Hall-B clean room.
 
** After the meeting Dave M. located a Helmholtz coil in the Hall-B clean room.

Latest revision as of 17:06, 23 November 2015

Meeting time and location= 13:30 EST (JLab time) CC F326-327

=Connection instructions=

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Agenda

Minutes

Attendees: J. Feng, L. Gan, D. Mack, A. Somov, S. Taylor

  • Plans for studying the effect of the fringe field from the solenoid magnet on PMT performance are on hold until a magnet has been identified
    • J. Feng presented a draft of a plan File:Mfdatatable.pdf that calls for varying the number of mu-metal layers up to 5 and testing the extent to which the mu-metal sticks out beyond the face of the PMT
    • According to Sascha all other parts (preformed mu-metal tubes, PMT, electronics,...) besides the magnet are in place.
    • After the meeting Dave M. located a Helmholtz coil in the Hall-B clean room.
  • Liping plans to submit a proposal to NSF to partially fund a 10x10 CompCal prototype using crystals from Shanghai Ceramic Institute.
    • Dimensions of crystals still need to be finalized -- for the purpose of the proposal, probably go with 2.05x2.05 cm^2 to get quote from Shanghai Ceramic Institute.
    • Need to discuss with Eugene how much $ will come from Hall-D/Physics and what will be paid for.
  • Progress on simulation has been slow -- S.T. is trying to track down the reason for the apparent low efficiency seen by many people for simulated events.