Imaging for Physicists

Example Specifications

Shielding

Passive and active 0.2 (40 cm DSV)

Homogeneity (ppm) Field stability (ppm/hr)

<0.1

Cooling

Liquid helium only

Magnet specifications for Siemens Avanto 1.5 T

Boil-off (l/hr) Helium refill Shim plates Active shim

0

10 years 16 x 15

3 linear terms (20 coils) 5 2 nd order (32 coils)

Mass (tonnes)

5.5 2.5 4.0

Radial (x,y) 5 Gauss Axial (z) 5 Gauss Minimum area (m 2 )

<30