Cover Imaging for Physicists

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Example Specifications
Shielding Passive and active
Homogeneity (ppm) 0.2 (40 cm DSV)
Field stability (ppm/hr) <0.1
Cooling Liquid helium only
Boil-off (l/hr) 0
Helium refill 10 years
Shim plates 16 x 15
Active shim 3 linear terms (20 coils)
5 2nd order (32 coils)
Mass (tonnes) 5.5
Radial (x,y) 5 Gauss 2.5
Axial (z) 5 Gauss 4.0
Minimum area (m2 ) <30
Magnet
specifications
for Siemens
Avanto 1.5 T