Patent ID: 8988176
Filing Date: 2015-03-24
Classification: G01R,H01F,Y10S

Abstract:
1. A superconducting electromagnet device comprising: a refrigerant circulation flowpath in which a refrigerant circulates; a refrigerator for cooling vapor of the refrigerant in the refrigerant circulation flowpath; a superconducting coil cooled by the circulating refrigerant; a protective resistor thermally contacting the superconducting coil and having an internal space; a high-boiling-point refrigerant supply section for supplying a high-boiling-point refrigerant to the internal space in the protective resistor, the high-boiling-point refrigerant having a higher boiling point than the refrigerant and being frozen by the refrigerant; and a vacuum insulating container for at least accommodating the refrigerant circulation flowpath, the superconducting coil, and the protective resistor.