轴对称空间电荷透镜中的电子云

ELECTRON CLOUDS IN AXIAL SYMMETRIC SPACE-CHARGE LENSES

空间电荷透镜的聚焦特性决定于其电子云的大小、形状和密度分布.本文利用数值与解析方法讨论了这些参量.

The focusing properties of a space-charge lens depend on the size, shape and density distribution of its electron cloud. In this paper these parameters are discussed by both numerical and analytical methods.