系统电磁脉冲边界层准稳态特性研究

Characteristics of steady-state SGEMP boundary layer

对黑体谱脉冲Ｘ射线入射到系统材料上发射的光电子的行为及其准稳态成立的条件进行讨论，研究了系统电磁脉冲（ＳＧＥＭＰ）边界层中光电子参数和电场的准稳态特性。给出的公式，可以方便地获得ＳＧＥＭＰ边界展的主要参数，如电子密度、电子分布、表面电场及其分布等。最后给出了一个计算实例。

The useful boundary layer properties are discussed when an X-ray pulse is incident on common materials. Two characteristic times are given to determine whether steady-state theory is applicable. With the expressions given in this paper, parameters of boundary layer, such as electron density, electric fields and their profile with distance, can be calculated expediently. An example is discussed to illustrate the sue of these expressions.