Superconducting magnet device

Details Superconducting magnet device Superconducting magnet device

1989-07-27

1991-02-05

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335216, 505 1, 324318, H01F 700

Patent

active

049908782

ABSTRACT:
A superconducting magnet device includes a superconducting coil for generating a magnetostatic field, and a pulsating magentic field generating coil disposed on the inner diameter side of the superconducting coil. An inner cylinder of a thermal shielding tank located between the superconducting coil and the pulating magentic field generating coil is maintained at a temperature equal to or lower than the liquid nitrogen temperature. The inner cylinder is made of a superconductor which becomes superconductive at a temperature equal to or higher than the liquid nitrogen temperature. Further, a heating wire for heating the inner cylinder which is in a superconductive state to cause it to become normal conductive is provided on the inner cylinder of the thermal shielding tank in a direction in which it cuts across an induced current loop generated by the excitation of the static magnetic field.

REFERENCES:
patent: 4651117 (1987-03-01), Kawaguchi et al.
patent: 4797646 (1989-01-01), Saji et al.
patent: 4803452 (1989-02-01), Saji et al.
patent: 4833434 (1989-05-01), Takechi
patent: 4851799 (1989-07-01), Hilal
patent: 4868707 (1989-09-01), Takechi

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