| 摘要 |
PURPOSE:To facilitate the fabrication of a superconductive coil as well as to improve its property by a method wherein in order to provide the cooling surface of a pancake coil with mutually-intersecting fine grooves, either one of the grooves is worked after the superconductive wire is wound to a pancake coil style. CONSTITUTION:During fabrication of a superconductive wire, a first fine groove 71 having a V-shaped section is provided along the wire. This superconductive wire is wound with insulators 5 inserted between turns to form a pancake coil, and then a second fine groove 72 is provided so as to intersect the first fine groove 71 provided along the wire during fabrication of the superconductive wire, and interlayer spacers 4 are fixed at certain positions. |
