Title:
VARIABLE STRENGTH AND UNIFORM PARALLEL MAGNETIC FIELD GENERATION DEVICE
Document Type and Number:
Japanese Patent JP3184678
Kind Code:
B2
Abstract:
PURPOSE: To provide a variable strength and uniform magnetic field generation device capable of generating easily uniform magnetic field having specified strength to a required space.
CONSTITUTION: This invention relates to a variable strength and uniform magnetic field generation device which are provided with a magnetic field generation source, such as a coil or a permanent magnet and a cylinder 24 comprising a superconductor with a slit 31 in parallel with the longitudinal direction and assembled in such a fashion that the axis of the magnetic field generation source may parallel to the axis of the cylinder 24 made of a superconductor. The superconductor is a second class superconductor, and what is more, it is a variable strength and uniform parallel magnetic field generation device which is characteristic in that it has a critical current density where the superconductor is not 0 at the magnetic field which exceeds its lower part critical magnetic field. The cylinder 24 is a superconductor-made plate formed in the shape of spiral or Swiss-roll. It is also acceptable to adopt a cylinder comprising a plurality of plated pasted together.
Inventors:
Tsutomu Sasaki
Ikuo Ito
Ikuo Ito
Application Number:
JP24851393A
Publication Date:
July 09, 2001
Filing Date:
September 10, 1993
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
A61B5/055; H01F6/00; H01L39/00; (IPC1-7): H01F6/00; A61B5/055; H01L39/00
Attorney, Agent or Firm:
Yasuhiro Hagiwara
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