E. Jerby et G. Bekefi, CYCLOTRON-MASER EXPERIMENTS IN A PERIODIC WAVE-GUIDE, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 48(6), 1993, pp. 4637-4641
A periodic-waveguide cyclotron maser is presented in this paper. In th
is device, a nonrelativistic electron beam undergoes a cyclotron inter
action with traveling waves in an inductive periodic waveguide. Result
s of amplifier and oscillator experiments are presented. These experim
ents are conducted in the microwave regime (similar to 10 GHz) with lo
w-energy (<10 keV), low-current (<1 A) electron beams. Considerable am
plification (>10 dB) and rf power (similar to 100) have been measured
in the amplifier and oscillator experiments, respectively.