General Meeting Summary 6/8/17

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MAGNET UPDATE

  • Expect corrector coil to arrive later this month
  • Main coil work is ongoing, anticipate arrival at Jlab in August
  • Yoke work ongoing, some confusion about extra steel that has been resolved, expect the yoke to arrive in August
  • Action Item: have space for big items available in late July/early August


CRYSTAL ACTIVITIES

  • First batch of 2017 SICCAS crystals expected to arrive late June
  • shelves should be able to hold 40-50 crystals each - should be sufficient for all NPS crystals
  • shelves are (or will be) covered with a protective foam material
  • CRYTUR 5th production cycle crystal
  • transmittance and radiation hardness look good, transmittance on the low side
  • next, discuss pricing options with company
  • SICCAS crystal characterization at IPN-Orsay
  • 10 crystals have arrived after some delay in customs
  • Transmittance studies completed, light yield studies with Co-60 source ongoing


FRAME

  • Draft design should be ready by end of the year - first finalize curing system
  • Still need to finalize one aspect of overall design - remove an interference on beam side, make design symmetric. Time frame for this is July.


PMT HIGH VOLTAGE DIVIDERS

  • Still need final drawings to start construction of bases - Hamlet will check with Fernando
  • one aspect to quantify is cabling off the divider


PAC45 PROPOSALS

  • WACS proposal was submitted successfully, a version was circulated to the NPS collaboration
  • No comments yet from reviews - expect the first in late June. PAC45 meets in the week of 10 July.
  • There will be a dedicated presentation on the photon source at the PAC45 meeting


NEXT MEETING: THUR 6 JULY AT 9:00 AM (EDT) - NOTE THAT THIS MEETING MAY RUN A LITTLE LONG SINCE WILL INCLUDE PAC45 DRY RUNS