DEVELOPMENT OF ALUMINUM-STABILIZED SUPERCONDUCTING COIL

Aluminum-stabilized NbTi superconducting wires have been developed for the purpose of increasing the stability margin of a close-packed supe rconducting coll with high current density. The effects of high purity aluminum stabilizer on the stability margin and the normal propagatio n velocity were investigated in the coil operation. It was verified th at the coll stability margin is significantly improved by using the al uminum-stabilized superconducting wire. The experimental data of the c oll stability margin are in good agreement with the calculated results by one-dimensional transient computer simulation analysis.