February 12, 2024 KLONG CPS Design Meeting

Meeting Time and Place

Monday, February 12, 2024, 1pm Hall D Counting House

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

Review minutes from last meeting https://halldweb.jlab.org/wiki/index.php/January_16,_2024_KLONG_CPS_Design_Meeting
Review new basic 3D model and compare to Pavel's model (Pavel, Keith)
- 3D model cross section with dimensions media:Dimensioned CPS cross section.png
- Possible cross section media:Baseline cross section.jpeg
De-gaussing of Tagger magnet (all)
- Tagger magnet degaussing requirements (Hovanes)
Magnet update (Josh) media:CPS Magnet Design.pdf
Discuss path forward (Tim/all)

Reviewed minutes from last meeting
Looked over Keith's 3D model with dimensions
- Pavel to take a closer look to ensure they correspond to his conceptual design
- Need to get accurate dimensions for the 20% Cu/80% W pieces
- Looked at installation in tagger building and discussed space issues
- Need to bring in magnet and girder into the 3D model
- Borated Poly layer is not needed below the CPU
- Outer lead layer may not be needed below the CPU - it may still be needed to prevent concrete activation
- the support stand for the final decommissioning portion (< 10 tons) may be heavy concrete
Discussed deGauss of tagger magnet, need plan to present to Patrizia by Mar 1
Josh presented the Magnet spec and design
- Need to verify low power ops (35V) of power supply will be stable enough - Josh to check with Onish
- Start modelling the magnet in NX and making drawings