摘要
本文应用差分迭代的数值方法和热电子发射的统计理论,编写了一个用于设计计算电子枪、静电透镜和各类像管的通用软件包,并能用CAD绘出各种图表。文中给出一些实例,其计算结果均与实测或资料给出的相符。文中还提出了最佳统计像曲的概念,以及等位线的追迹和电子束管中有关离子轨迹的追迹方法等。
Based on the finite difference method and the statistical theory of thermal electron emission, a set of computing and plotting programs using to computer aided design of electron beam device for electron guns and image tubes has been written in FARTRAN77 running on MV/8000 digital computer, and a good agreement between calculated result and that measured or given in ref has been obtained, This paper presents some numerical methods, such as optimization of Lagrange's interpolation function, determination of the optimum image plane using the statistical radius of the Airy disk, the tracing methods of equipotential lines and ion trajectories and so on. and some examples of the practical application, such as calculation and design for guns and image tubes, and analysis of the ion feedback in image tubes has been given.
出处
《计算物理》
CSCD
北大核心
1991年第2期216-224,共9页
Chinese Journal of Computational Physics
关键词
电子光学
电子枪
像管
CAD
electron optics, electron gun, image tube, computer aided design.