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由两个等密度、反向电子注与重背景离子互作用所产生的电子注-等离子体互作用已经在理论上和实验上进行了研究。与文献[1]和[2]不同,本文提出一个较少限制的模型来讨论此种互作用机理的特性.该模型简略地示于图1。应用扰动理论,将已有的非相对论性模型推广应用于相对论性电子注和相对论效应对电子注-等离子体互作用的影响。此外已有的模型是被限制于等速、反向电子注在重背景离子等离子体中的互作用。本文根据相对论效应把该模型推广应用于非等速、平行或不平行的两个电子注。这个广义的理论不仅明显地显示了相对论效应.而且便于与熟悉的器件和过程,诸如行波管、邦内曼(Buncman)不稳定性以及皮尔斯(Picrcc}不稳定性相比较。导出了相对论性色散方程,并从这一相对论性互作用出发提出了一种新型自由电子激光。
The electron-beam-plasma interaction resulting from the interaction of two isodense, reversed electron and heavy background ions has been studied both theoretically and experimentally. In contrast to [1] and [2], this paper presents a less restrictive model to discuss the nature of this interaction mechanism. The perturbation theory is applied to extend the existing nonrelativistic models to the effect of relativistic electron and relativistic effects on electron-beam-plasma interaction. In addition, the existing model is limited to the interaction of isokinetic and reverse electron injection in heavy background ion plasmas. According to the relativistic effect, this paper generalizes the application of the model to two electronic notes of non-constant velocity, parallel or non-parallel. This generalized theory not only clearly shows the relativistic effect but also facilitates comparison with familiar devices and processes such as traveling wave tube, Buncman instability and Picrcc instability. Dispersion equation, and from this relativistic interaction proposed a new type of free electron laser.