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扩展Pierce理论的应用范围,通过解析求解泊松方程和拉氏方程,在固定发射面的情况下,得到了在给定束流强度密度下带状平行束外空间电位分布的一般方法,可为引出系统的设计提供一定的参考.
Extending the application range of Pierce theory, the general method of spatial potential distribution outside the banded parallel beam at a given beam current intensity is obtained by solving the Poisson’s equation and the Lagrangian equation with fixed emission surface. Draw the design of the system to provide some reference.