PURPOSE: To obtain the compound superconducting magnet which is able to withstand a heat treatment by a method wherein the spacer and/or the bobbin to be arranged between windings are formed using a ceramic material, and the heat generated by the occurrence of an eddy current is prevented.
CONSTITUTION: The spool 1, the side plate 2 and the spacer 3, with which a bobbin is constituted, are formed using a ceramic material. Spacerfixing grooves 4, which are radially arranged on the inner side of the side plate 2, are provided on the side plate 2. The introduction hole 5 of a liquid He is bored on the inner surface of the side plate 2 which is pinched by the fixing grooves 4. A winding layer is formed by winding a wire material W on the upper part of the spacer 4. When a winding body is heat-treated at the temperature higher than 500°C, a compound superconducting magnet on which superconductive substance will be grown can be obtained. As a result, the heat generating by the occurrence of an eddy current can be prevented, and the compound superconducting magnet which is able to withstand a heat treatment can be obtained.
OGAWA RIKURO
MATSUMOTO KIYOSHI
