General Meeting Summary 4/16/20

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PARTICIPANTS: V. Berdnikov, A. Camsonne, C. Munoz-Camacho, R. Ent, M. Fowler, T. Horn, C. Hyde, S. Lassiter, P. Medeiros, H. Mkrtchyan, J. Murphy, J. Roche, V. Tadevosyan, B. Wojtsekhowski

MAGNET AND DESIGN (Charles, Paulo, Steven, Mike)

  • Analysis of magnet fringe field data and comparison to calculation is ongoing
  • The Hall A/C engineering/design team is working on NPS cable layout
  • Two main routing options, one more direct but also makes cables longer - seems fine from NPS point of view, but need to check with Hall C
  • Also need to take into account CPS in overall cable layout
  • Action items:
  • Send updated DVCS kinematics table with settings moved to Hall C from Hall A to Steven L.
  • Check with Brad S. on cable routing, patch panel, etc.
  • Include CPS in overall cable layout


FRAME (Carlos)

  • Construction started, but on hold until end of lockdown - currently expect re-opening after May 11
  • Crystals and LED connectors arrived in Orsay
  • Cabling of LED connectors is ongoing
  • Action item: check on cable making effort at JLab


CRYSTALS (Vladimir, Tanja)

  • Had email communication with Crytur. Vendor is working on a proposal for crystal delivery for rest of FY20 and FY21 - expect update after 4/17
  • A few boxes of Crytur crystals that arrived last month await to be inspected. Furthermore, the expected SICCAS crystal arrived (60 of those to NPS) and await inspection
  • SICCAS crystals were preselected in Shanghai by a FCAL collaborator from Wuhan U. - 13% of all inspected crystals were rejected based on simple visual inspection
  • Action items:
  • check on options for Crytur to send ~70-100 crystals to JLab on 30 August. These would arrive in multiple boxes with different invoices due to issues with the carrier on vendor's side.
  • check on options for both vendors to keep producing and sending crystals - options for storage at JLab


HV DIVIDERS (Vladimir, Tanja)