Optimal design of high current superconducting switches and the feasibility of their testing

We have designed a superconducting switch for optimum heat transfer from a high current carrying superconducting thin film to the substrate. This design is based upon the acoustical matching of the different layers of the compound substrate. The switch-recovery time is considered to be of the order of 1 μsec. The design of a magnetic triggering circuit that generate high current field (of approximately 1500 A/cm) pulses of 1 μsec duration has also been demonstrated. A simple LC circuit is employed to generate high current oscillations of 0.25 MHZ frequency. The optimum parameters of this circuit have been computed.