Patent ID: 9564262
Date: 2017-02-07
CPC Classifications: G01R,H01F

Claim:
1. A superconducting magnetic field generating device comprising: a superconductor which includes an outer superconductor which is formed with a high temperature superconducting material in a cylindrical shape and generates a trapped magnetic field by trapping an applied magnetic field in a state of being cooled to a temperature equal to or lower than a superconducting transition temperature, and an inner superconductor which is formed with a high temperature superconducting material in a cylindrical shape and is coaxially disposed with the outer superconductor on the inner circumferential side of the outer superconductor; and a cooling device which cools the outer superconductor and the inner superconductor to a temperature equal to or lower than the superconducting transition temperature, wherein the inner superconductor is formed so that a ratio (Jcθ