Test and evaluation of conductors for superconducting magnetic energy storage

We have constructed pancake coils of a monolithic conductor and several different types of braid and cable, using a variety of insulating tapes and bonding resins. The coils were tested to quench in self-field at currents up to 2700 amperes. Results are presented for the training behavior of the various coils as compared to short-sample tests. A conductor composed of several braids or cables in parallel, which will be suitable for the in situ fabrication of large magnets is described.