Development of an Annular Electron Beam HPM Amplifier

Abstract : Experiments and computer simulations of annular electron beam powered microwave devices have been conducted, This work included the generation of an annular electron beam using the IMP pulser, the modulation of this beam via a two-cavity klystron-like amplifier, and the extraction or radiation of the microwave power. Results of computer simulations from several codes used to design the experiments and results of experiments on propagating the electron beam, injecting a magnetron signal into the two-cavity klystron-like amplifier via a vacuum coaxial line, and initial work on modulating the electron beam are presented.