发明申请
US20080197850A1 MAGNETIC RESONANCE APPARATUS HAVING A SUPERCONDUCTING BASIC FIELD MAGNET WITH A STRUCTURALLY REINFORCED CRYOSHIELD 失效
具有结构强化CRYOSHIELD的超导基本磁场的磁共振装置

MAGNETIC RESONANCE APPARATUS HAVING A SUPERCONDUCTING BASIC FIELD MAGNET WITH A STRUCTURALLY REINFORCED CRYOSHIELD
摘要:
In an arrangement of a basic field magnet and a gradient coil of a magnetic resonance apparatus, the basic field magnet includes superconducting coils that are arranged in a reservoir with liquid helium for cooling. The helium reservoir is surrounded by a further reservoir, designated as an outer vacuum chamber. A vacuum exists between the outer vacuum chamber and the helium reservoir. A cryoshield is arranged between the outer vacuum chamber and the helium reservoir. The gradient coil is arranged in the inner chamber of the basic field magnet. The cryoshield has additional structure for reinforcement that counteract vibrations of the cryoshield.
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