Cyclotron autoresonance maser (CARM) amplifiers are under investigation as a possible source of high-power (>100 MW), high-frequency (>10 GHz) microwaves for powering the next generation of linear colliders. A design for a high-power, short pulse, 17.136 GHz CARM amplifier, utilizing a 500 kV linear induction accelerator, is presented.
W. L. Menninger,
"Short-pulse high-power 17 GHz CARM amplifier", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15765S (1 October 1991); doi: 10.1117/12.2297921; https://doi.org/10.1117/12.2297921