本文将从以下五个方面,简单介绍微波电子枪:1 意义、用途 微波电子枪及由其组成的注入系统是近年发展的一种可提供低发射度、皮秒级、强流、相对论性电子束团的装置。它可以直接做成简易的小型电子加速器,供辐照加工或术后放疗使用,也可经过α磁铁压缩脉冲宽度,选择能量后作为高性能要求的电子直线加速器的注入器或化学辐射分解研究应用。此外,短脉冲强流束团在加速器物理与技术领域有广泛的应用,如产生相干的红外—远红外光辐射、作为导致束流不稳定性的尾场的研究手段。在远距离能量传输中,它也可能发展成为一种把微波场能量转化为电子动能的能量转换器。 This article will be from the following five aspects, a brief introduction of microwave electron guns: 1 meaning, use of microwave electron guns and its injection system is developed in recent years to provide a low emissivity, picosecond, strong current, relativistic electron bunch s installation. It can be directly used as a simple miniature electron accelerator for irradiation or postoperative radiotherapy. It can also be used to compress pulse widths of alpha magnets. After selecting energy, it can be used as a high-performance electron linear accelerator injector or chemical radiation decomposition research application . In addition, the short pulse intense stream cluster has a wide range of applications in the field of accelerator physics and technology, such as the generation of coherent infrared - far infrared light radiation, as the research method leading to the wake of the beam instability. In long-range energy transmission, it may also develop into an energy converter that converts microwave field energy into electron kinetic energy.