90kG Superconducting Magnet

Abstract

A 90-kG superconducuing magnet was constructed to test coil performances of Z (Nb-62.5 Ti-2.5 Zr) alloy and S (Nb-59 Ti-1 Si) alloy wires developed for high-field superconducting alloys. The magnet was composed of the outer pancake coil (block III) wound with HISUPER-10X strips for 10X (Nb-40 Zr-10 Ti) alloy wires to be embedded in high pure copper, the intermediate solenoid coil (block II) wound with HISUPER-16 ZMB for the 16 Z wires to bond metallurgically with high pure copper, and theinner solenoid coil (block I) wound with the Cu-clad S alloy wires. The central magnetic field was of 79kG for a combined block II and III coil, and of 92kG for a combined block I, II and III coil. From these results the Z and S alloys were confirmed to be applicable to winding materials for highfield magnets.