HEL pre-design

Diego Perini 31.10.2014

Superconducting solenoid• Operation temperature: 4.2 K, current:about 250A, magnetic field: 5 Tesla • Cooled by liquid helium• Three vessels: for liquid helium, thermal screen and vacuum• The helium vessel is supported by the permaglass bars in vertical and

horizontal directions and in axial direction with plastic piece• The main coils and the correction coils are inside the helium vessel

Coils

The main coils and the correction coils

The power connection between the main coils

Aegis coils

Thermal screen

Thermal screen

The circulation of the helium gas pipes

Vessels’s supports

Fix point for axial direction

Suspension forvertical and horizontal directions

Power and helium supply

The current leadsThe connectors

Supply for liquid and gas helium

Toroid section

The gun side vacuum chamber and the toroid coils The collector side vacuum chamber and the toroid coils (section)

Support frame

The support frame of the hollow electron lens.

The rail and positioning system