Use of magnetic compression based on amorphous alloys as a drive for induction linacs

In anticipation of current and future needs for the Particle Beam Program and other programs at the Lawrence Livermore National Laboratory, we are continuing efforts in the development of high-repetition-rate magnetic pulse compressors that use ferromagnetic metallic glasses, both in the linear and very high saturation rates. These devices are ideally suited as drivers for linear induction accelerators, where duty factor or average repetition rates (hundred of hertz) requirements exceed the parameters that can be achieved by pulse compression using spark gaps. The technique of magnetic pulse compression has been with use for several decades, but relatively recent developments in rapidly quenched magnetic metals of very thin cross sections, has led to the development of state-of-the-art magnetic pulse compressors with very high peak power, repetition rates, and reliability. This paper will describe results of recent experiments and the relevant electrical and mechanical properties of magnetic pulse compressors to achieve high efficiency and reliability