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US 8,134,433 B2Granted
Superconducting magnet apparatus
AssigneeHitachi, Ltd.
InventorsMitsushi Abe, Takeshi Nakayama, Masanori Takahashi
Life of this patent
Estimating the term…
Abstract
Main coils, counteracting coils and correction coils, each forming superconducting coil, are enclosed in two cooling medium chamber facing to each other and an imaging region is formed between the two cooling medium chamber positioned in each vacuum chamber, the main coils being divided into two pieces to reduce the current density and the maximum experience magnetic filed and compression stress.
Claims7
A superconducting magnet apparatus comprising:
- a pair of cooling medium chambers each enclosing a plurality of annular superconducting coils together with cooling medium;
- a pair of vacuum chambers each enclosing each of said cooling medium chambers;
- and
- at least one connecting member for connecting said vacuum chambers connected such that the vacuum chambers are opposed to each other to form a magnetic field space therebetween having an imaging region intersecting the central axis of the magnetic field,
- wherein the plurality of superconducting coils includes a superconducting main coil in each of said cooling medium chambers, each of the main coils are respectively divided into a plurality of pieces along the central axial direction of the coils and each of the pieces of each of the main coils has the same direction of current flow, and
- wherein the divided pieces of each of the main coils are respectively supported by a single supporting member inserted between the divided pieces and each of the divided pieces is supported in contact with a face of the single supporting member.
3 more elements
Dependencies are inferred from the claim text.