Superconducting, in particular an open the magnet and the process for the creation of a compact superconducting magnets with a homogeneous magnetic resonance image generating space

摘要

The superconducting magnet (10), with:a longitudinally extending axis (12) and a first unit (14), with:a superconducting main coil (16), which is located around the axis (12) and, r is a first electrical main flow in a first direction leads;a magnetic pole piece (18), which is coaxial to the axis (12) is aligned, from the main coil (16) of the first subassembly (14) is spaced apart and a surface portion (22), a large part of the pole piece (18) of the first subassembly (14) radially inwardly of the main coil (16) in the direction of the axis (12) of the first subassembly (14) is arranged;a dewar vessel (20) for cryogenic fluid (64) which the main coil (16) of the first subassembly (14) and surrounds an inner surface (24) has, the partially by the surface portion (22) of the pole shoe (18) of the first subassembly (14) is defined;and a cryogenic fluid (64) the dewar vessel (20), and in thermal contact with the main coil (16) and in..