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US 6,816,051 B2Granted
Superconducting magnet and magnetic resonance imaging apparatus using the same
AssigneesHitachi, Ltd., Hitachi Medical Corporation
InventorsHiroyuki Watanabe, Tsutomu Yamamoto, Yoshihide Wadayama, Hirotaka Takeshima, Kenji Sakakibara, Takao Honmei
Life of this patent
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Abstract
Effect of vibration of a refrigerator on a superconducting coil is reduced to reduce disturbance in an image. A coolant tank for supplying a coolant to coil containers is provided separately from the coil containers, and the refrigerator is placed in the coolant tank, and a coolant circulation passage connects between the coolant tank and the coil containers.
Claims11
A superconducting magnet comprising:
- superconducting coils;
- coil containers, each of said coil containers containing a superconducting coil together with coolant;
- and
- said coil containers being arranged separately from and opposite to each other, and a magnetic field space being formed between opposite sets of coil containers,
- wherein a support member is provided for forming a magnetic circuit so as to arrange said coil containers separately from and opposite to each other;
- and
- a connecting passageway provided in said support member for circulation of said coolant.
4 more elements
A superconducting magnet comprising:
- superconducting coils;
- coil containers, each of said coil containers containing a superconducting coil together with coolant;
- and
- said coil containers being arranged separately from and opposite to each other, and a magnetic field space being formed between opposite sets of coil containers,
- wherein a support member is provided for forming a magnetic circuit so as to arrange said coil containers separately from and opposite to each other;
- and
- a connecting passageway provided in said support member through which lead wires connect said superconducting coils in said coil containers to each other.
4 more elements
Dependencies are inferred from the claim text.