PROBLEM TO BE SOLVED: To provide a superconducting magnet device 1 capable of easily transmitting heat generated inside to the outside and also capable of suppressing heat generation when electric current is increased.SOLUTION: A superconducting magnet device comprises a superconducting coil 5 constituted by winding a plurality of times a superconducting wire 13 of which external surface is made from a normal conductor, wherein normal conductors of which turns are opposed to each other in the winding order (direction) directly contact each other, and normal conductors of which turns have separated winding orders are provided with an insulation member 16 therebetween. Normal conductors of which turns are different in the number of winding orders by 3 or less may directly contact each other. The superconducting coil 5 has a ring 9 fitted along an outer periphery thereof. The linear expansion coefficient of the ring is greater than that of the superconducting wire 13.COPYRIGHT: (C)2014,JPO&INPIT【課題】内部で発生した熱を外部に伝え易く、電流を増加させる際の発熱を抑制できる超電導磁石装置1を提供する。【解決手段】外表面が常電導体になっている超電導線13が複数回巻回された超電導コイル5を有し、巻順が相前後するターンの常電導体同士は直接接し、巻順が離れているターンの常電導体の間には、絶縁部材16が設けられている。巻順の差が3以下のターン同士の常電導体は互いに直接接していてもよい。超電導コイル5の外周に沿って超電導コイル5に嵌められたリング9を有している。リングの線膨張係数は、超電導線13の線膨張係数よりも大きくなっている。【選択図】図1
