量子ビームによる実用超電導線材および導体中の局所歪の非侵襲的測定の最近の進歩

抄録

Practical superconducting wires are designed with a composite structure to meet the desired engineering characteristics by expert selection of materials and design of the architecture. In practice, the local strain exerted on the superconducting component influences the electromagnetic properties. Here, recent progress in methods used to measure the local strain in practical superconducting wires and conductors using quantum beam techniques is introduced. Recent topics on the strain dependence of critical current are reviewed for three major practical wires: ITER-Nb₃Sn strand, DI-BSCCO wires and REBCO tapes.