High peak power ka-band gyrotron oscillator experiment

Abstract : A Ka-band gyrotron oscillator powered by 600 kV pulseline accelerator has produced approximately 100 kW at 35 GHz in a circular TE62 mode. It has also demonstrated frequency tuning over the range 28 to 49 GHz by operating in a family of TEm2 modes, with the azimuthal index m ranging from 4 to 10, by variation of the guide magnetic field. Operation is in general agreement with the predictions of theory.(Author)