| 摘要 |
Magnetic resonance systems are provided which employ a shielded, asymmetric magnet to produce an offset dsv. The magnets include at least a first coil C<SUB>1</SUB>, which carries current in a first direction, and two coils C<SUB>2 </SUB>and C<SUB>3</SUB>, which are located at least in part within the internal envelope E<SUB>C1 </SUB>defined by the first coil and which carry current in an opposite direction to the first coil. The magnets are shielded by a shielding coil C<SUB>4</SUB>, which carries current in a direction opposite to that of the first coil, and/or a ferromagnetic structure (FS). The magnets can include additional coils, such as a fifth coil C<SUB>5 </SUB>at the magnet's distal end. The magnets can be used in, for example, orthopedic imaging. |
