Riken Corporation

Japan Superconductor Technology Inc.

Yu Suetomi

Yoshinori Yanagisawa

Mamoru Hamada

Xinzhe Jin

Renzhong Piao

Provided is a connection body of high-temperature superconducting wire materials including a first oxide high-temperature superconducting wire material and a second oxide high-temperature superconducting wire material, characterized in that a first superconducting layer of the first oxide high-temperature superconducting wire material and a second superconducting layer of the second oxide high-temperature superconducting wire material are bonded together via a junction including M-Cu&#x2014;O (wherein M is a single metal element or a plurality of metal elements included in the first superconducting layer or the second superconducting layer). The connection body may be, for example, a connection body of Bi2223 wire materials, and the junction may include CaCuO.

Connection body of high-temperature superconducting wire materials and connecting method

To provide a superconducting magnet apparatus with a structure which can prevent an increase in apparatus size even when a number of connection portions serving to connect superconducting wires is great. The superconducting magnet apparatus includes a first wiring-holding portion (tubular body ()) extending from a bobbin () in an axial direction of a superconducting coil () and a second wiring-holding portion (joint plate ()) which is provided on a same side in the axial direction as the tubular body (), extends in a direction intersecting with the axial direction, and has a greater diameter than that of the bobbin () and the tubular body (). Superconducting wires (to) which extend from the superconducting coil () and connect to one another are spirally wound on the tubular body () and fastened to a groove () formed on the joint plate ().

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Wako, Japan

Yu Suetomi