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发展高分辨率阴极射线管(CRT)是很重要的。这里要研究两个题目:(1)高性能电子成束区(beam-forming regions)光点尺寸对电极不对中的敏感性;(2)在动态聚焦和象散校正偏转散焦的电子枪中放置四极场的作用。我们用全三维专用电子光学计算机模拟程序来完成这一研究工作。这一程序能使工程师们容易、快速、准确而廉价地设计和计算通用的和新型的 CRT 电子枪和偏转线圈。这一程序模拟了从阴极发射,通过复杂的电子枪和偏转线圈,穿过荫罩打到屏上任何位置的稳态三维电子流。对热速度分散和磁场与静电场力,包括空间电荷在三维空间中作了严密和充分的处理。
It is important to develop high resolution cathode ray tubes (CRTs). There are two topics to be studied here: (1) the sensitivity of high-performance beam-forming regions to spot misalignment of the electrodes; (2) placement in electron guns for defocusing and defocusing with dynamic focusing and astigmatism correction The role of the quadrupole field. We use a full three-dimensional dedicated electronic optical computer simulation program to complete this research. This procedure enables engineers to design and calculate common and new CRT electron guns and deflection yokes easily, quickly, accurately and inexpensively. This procedure simulates steady three-dimensional electron flow from the cathode through the shadow mask to any location on the screen through a complex electron gun and deflection yoke. Dispersion of thermal velocities and magnetic and electrostatic forces, including space charge, have been rigorously and adequately addressed in three dimensions.