Abstract: A spool has a cylindrical outer shape extending in an axial direction intersecting an upward/downward direction, the spool having an outer circumferential surface in which a plurality of annular groove portions extending in a circumferential direction are formed with a space being interposed between the plurality of annular groove portions in the axial direction, a superconducting coil being wound and accommodated inside each of the plurality of annular groove portions. A cover portion is attached to the spool so as to cover each of the plurality of annular groove portions, the cover portion and the plurality of annular groove portions forming a plurality of annular flow paths for refrigerant to cool the superconducting coil. One or more communication paths extend in parallel with the axial direction to communicate adjacent annular flow paths of the plurality of annular flow paths with each other.

Abstract: A superconducting coil comprises a superconducting wire, an insulating sheet, and an adhesive resin. The insulating sheet includes a plurality of resin sheets and two semi-cured resin fiber sheets. The plurality of resin sheets have electrical insulation and are disposed in at least two layers. The two semi-cured resin fiber sheets are disposed in layers with the plurality of resin sheets disposed therebetween. The plurality of resin sheets and the two semi-cured resin fiber sheets have mutually adjacent resin and semi-cured resin fiber sheets bonded together.

Abstract: A superconducting magnet apparatus includes a first superconducting coil centered around an axis extending in a direction intersecting with a vertical direction and a refrigerant circulation circuit through which refrigerant circulates. The refrigerant circulation circuit includes a first cooling pipe path in thermal contact with the first superconducting coil, an upper pipe path arranged above the first cooling pipe path, a lower pipe path arranged below the first cooling pipe path, and a connection pipe path that connects the upper pipe path and the lower pipe path to each other. The first cooling pipe path includes a first storage portion where refrigerant is stored.

Abstract: A superconducting magnet includes a wound superconducting wire material. The superconducting wire material includes a configuration part in which, based on a difference in magnitude of a magnetic flux density which varies depending on at which the superconducting wire material is wound, a sectional area of a part having a relatively low magnetic flux density is smaller than a sectional area of a part having a relatively high magnetic flux density.

Abstract: A superconducting magnet apparatus includes a first superconducting coil centered around an axis extending in a direction intersecting with a vertical direction and a refrigerant circulation circuit through which refrigerant circulates. The refrigerant circulation circuit includes a first cooling pipe path in thermal contact with the first superconducting coil, an upper pipe path arranged above the first cooling pipe path, a lower pipe path arranged below the first cooling pipe path, and a connection pipe path that connects the upper pipe path and the lower pipe path to each other. The first cooling pipe path includes a first storage portion where refrigerant is stored.