论文主要为对像增强管空间电场分布的计算和一系列的分析，通过有限差分法计算相应电极周围的电位。（小学期论文，自主设计）-Paper for the electric field on the distribution of image intensifier tubes and a series of analysis of the calculation, the corresponding finite difference method around the electrode potential. (Elementary school on paper, self-design)