アルミニウム安定化Nb-Ti超伝導ストランドケーブルの試作とその安定性

抄録

Aluminium stabilized superconducting cables were prepared in order to investigate their cryostatic stability. The sample are seven-strands cabled conducters composed of copper-clad, single core Nb-Ti wires and copper-sheathed, high purity aluminium wires and dipped in Pb-Sn solder. From the measurements of the voltage versus current characteristics, the cold end recovery current has been determined as a function of an external field. A considerable increase of the recovery current has been obtained as compared with the copper stabilized cable. Simple fabrication method proposed as well as the improved recovery current may prove the possibility of light-weight, compact superconducting magnets.