On the theory of electron beam-wave interactions in a magnetized plasma waveguides

Abstract

Summary form only given, as follows. In a magnetized plasma waveguide, the TE mode and the TM mode are always coupled each other. This makes the electron beam-wave interactions much more complicated. Even though, theoretical and experimental studies have been carried on very actively during the past years. Paper [1-2] presented a Basic Theoretical Formulations on the electron beam-wave interactions by means of the Applied field approximation, paper [3] gave a linear theory based on the dielectric tensor for both the electron beam and the plasma, while in paper [4], based on the Lorentz transformation and the Constitutive transformation in the Minkowski space, a novel approach of the theory was worked out. An experimental study on a plasma filled Cherenkov radiation device has been carried out in [5]. A report of detailed comparison of the theories [1-4] and the experiment [4] is presented in this paper. The comparison shows that the novel theoretical approach [4] gives correct and more accurate agreement with the results of the experiment [5].