Patent ID: 6879852

Claim:
A magnetic resonance imaging (MRI) system, comprising: a magnet assembly including a superconducting magnet; a plurality of sub-systems, at least a portion of at least one said sub-system having enhanced performance when operating at a temperature below ambient; at least one refrigerated chamber containing and maintaining said superconducting magnet and said portion of said at least one of a plurality of sub-systems at a cryogenic temperature below ambient for enhanced performance; and a refrigerating system/performance enhancer for maintaining at said cryogenic temperature said magnet and said at least one sub-system in said at least one refrigerated chamber, wherein said plurality of sub-systems includes magnet current control circuits, gradient power supplies, gradient amplifiers, RF power supply, RF power amplifiers, laser diode power supply, cryo-laser diodes, RF coils, and gradient coils.