March 26, 2024 KLONG CPS Design Meeting

Meeting Time and Place

Tuesday, March 26, 2024, 1pm Hall D Counting House

• Invited - Hovanes Egiyan, Stephanie Worthington, Keith Harding, Pavel Degtiarenko, Tim Whitlatch, Eugene Chudakov, Josh Ballard

Agenda

• Review minutes from last meeting https://halldweb.jlab.org/wiki/index.php/February_27,_2024_KLONG_CPS_Design_Meeting
• Review new basic 3D model and compare to Pavel's model (Pavel, Keith)
  • Copper Absorber updated media:Copper absorber.pdf
  • Tagger Hall Layout (Stephanie/Keith)
• De-gaussing of Tagger magnet (all)
  • Run test with an existing dipole magnet at magnet measurement (Tim, Joe Meyers)
• Magnet update (Josh/Stephanie) media:CPS Magnet Design.pdf

Minutes

• Reviewed minutes from last meeting
• Discussed progress on 3D model
  • Discussed possibility of removing borated poly layer from the back side when moving CPS out of beamline
    • Pavel will check radiation levels
    • It will make more clearance for GlueX reinstall
  • Ok to have a gap upstream of copper absorber for water lines - total shielding thickness still needed
  • On downstream end, keep center Cu/W inner block up against the absorber (inside of the water lines) OK for gap outside this
  • Currently the copper absorber model is 1.67 cm below beam center, we will move to 2 cm below
• Need to set the center of the magnet poles 2cm below beamline
• Magnet pole gap is clear of all materials, Cu/W can fill in coil regions