Draft

Participants: William, Lauren, Gunn, Mark, Wilfried

Mechanical:

Compact solution using existing HV feedthrough + short cable + sealed 90° bending box* mounted on BGI tank
Box*: RF tight, removable back panel, internal G10 insulation
Minimum bending radius of HV cable respected using rigid support (William)
Simple stainless steel test flange (rectangular, no knife edge) for HV tests can be provided
Lauren to create 3D model, check space between tank and magnet aperture, iterate with XEI

Electrical:

No commercial solution meets compact + 50 Ω + non-magnetic requirements
Short non-50 Ω section (~10 cm max), then transition via 3Y LEMO to 50 Ω cable
HV insulation: ~2 mm/kV guideline (~60 mm for 30 kV), use insulated cable + HV putty tape
RF validation via stretched wire method on final instrument
Front-end cooling HV box: active or passive cooling options

Actions:

Wilfred: retrieve HV cable samples (Stephane storage), check LEMO compatibility - DONE, 3Y Series not compatible with new HV cable
Lauren: 3D model and space validation
Mark: back-end box design (50 Ω termination + cooling)
Gunn: HV simulations (fields, triple points, breakdown)