Excitation Tests of a Superconducting Split Solenoid Magnet

Abstract

A 14T superconducting split solenoid magnet was developed and tested in KEK. The magnet has a hybrid construction of Nb₃Sn and Nb-Ti. Excitation experiments were made using a computer data acquisition system. A new method to analyze quench data is discussed in this work. The quench propagation through coils was clarified from the data analysis. The magnet was operated upto almost 100% of I_c of the Nb₃Sn conductor on the load-line.