| 摘要 |
PURPOSE:To leave an oxide superconducting layer of a spiral shape and to use it as a coil for a superconducting magnet by a method wherein the oxide superconducting layer is formed in a shape close to a final shape and the part other than the spiral shape is removed or made to lose its superconductive property. CONSTITUTION:A magnesium oxide layer 2 as an intermediate layer is formed on a cylindrical base material 1; an oxide superconducting layer 3 is formed on this magnesium oxide layer 2. A region 3b other than a spiral-shaped part refers to a hatched region that is sandwiched between two-dotted chain lines; the oxide superconducting layer in this part is removed; alternatively, superconductivity at an operating temperature of the oxide superconducting layer in this part is lost. That is to say, even when the oxide superconducting layer 3 is not removed at all, its superconductive property is lost. By this setup, a superconducting magnet that uses the oxide superconducting layer 3 as a coil can be formed. |
