A novel flux compression/dynamic transformer technique for high-voltage pulse generation

This paper presents the basic concepts that underlie a fundamental research activity initiated recently at Loughborough University, U.K. A novel technique is described that enables the so-termed shock-wave-driven flux compression process to be performed inside a laboratory, without the need for any high-explosive charge, and results from preliminary proof-of-principle experiments are analyzed. Details of the necessary ancillary equipment, such as fast (TA/s) generators, electric guns, high-voltage helical transformers, and special transducers are presented, together with a study of the dielectric/metallic phase transition in aluminum powder. The paper concludes by showing how the different concepts can be combined, leading to a high-voltage pulse generator with a fast-rising output.