Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Reexamination Certificate
2006-03-28
2008-05-20
Arana, Louis M. (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
C324S320000, C335S299000
Reexamination Certificate
active
07375528
ABSTRACT:
Magnetic resonance systems are provided which employ a shielded, asymmetric magnet to produce an offset dsv. The magnets include at least a first coil C1, which carries current in a first direction, and two coils C2and C3, which are located at least in part within the internal envelope EC1defined by the first coil and which carry current in an opposite direction to the first coil. The magnets are shielded by a shielding coil C4, 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 C5at the magnet's distal end. The magnets can be used in, for example, orthopedic imaging.
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Crozier Stuart
Liu Feng
Arana Louis M.
Klee Maurice M.
Magnetica Limited
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