PROBLEMS IN THE RELATIVISTIC THEORY OF MI CROWAVE PLASMA ELECTRONICS

A review is presented of the theoretical studies on Hide-band microwav e sources employing the stimulated Cherenkov radiation of relativistic electron beams in a plasma waveguide, The motivation for such studies lies in recent experiments on microwave plasma noise sources using in tense relativistic electron beams. Although only theoretical problems are discussed, all necessary estimates are obtained using parameter va lues taken from actual General Physics Institute experiments, in part already published. A very incomplete preliminary comparison of theoret ical and experimental results is given.