中高能电子的散射全截面测量装置

摘要

以电子束流光学系统为重点，介绍一台500～4 250 eV电子的绝对散射全截面测量装置，给出了电子枪和五圆筒透镜的电子光学设计，提供实验对电子光学系统的检验，提出对装置的改进设想。%This paper presents a device designed for the absolute measurement of total electron-atom and electron-molecule cross section in the 500～4 250 eV energy range putting particular emphasis on its system of electron current optics, present the projects of its electron gun and five cylinder lens, provide the experimental tests for the system of electron current optics and puts forward the ideal about improving the device.