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SUPERCONDUCTING MAGNETIC FIELD GENERATION DEVICE, SUPERCONDUCTING MAGNETIC FIELD GENERATION METHOD AND NUCLEAR MAGNETIC RESONANCE DEVICE
SUPERCONDUCTING MAGNETIC FIELD GENERATION DEVICE, SUPERCONDUCTING MAGNETIC FIELD GENERATION METHOD AND NUCLEAR MAGNETIC RESONANCE DEVICE
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机译:超导磁场产生装置,超导磁场产生方法和核磁共振装置
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摘要
PROBLEM TO BE SOLVED: To provide a superconducting magnetic field generation device capable of more improving uniformity of a magnetic field strength within an internal space (bore) of a cylindrical superconductor.SOLUTION: A superconducting magnetic field generation device 100 includes an outer superconductor 2 and an inner superconductor 3 which are disposed coaxially and formed cylindrical. The inner superconductor 3 is formed in such a manner that a ratio (Jc&thetas;1/Jcz1) of a critical current density (Jc&thetas;1) in a circumferential direction with respect to a critical current density (Jcz1) in an axial direction of the inner superconductor 3 is close to 1 rather than a ratio (Jc&thetas;2/Jcz2) of a critical current density (Jc&thetas;2) in a circumferential direction with respect to a critical current density (Jcz2) in an axial direction of the outer superconductor 2.
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