朗谬尔探针法测量横流CO_2激光器的电子密度

Measurement of electron density in a transverse-flow Co_2 laser by Langmuir electrostatic probe

本文讨论了探针在流动等离子体中的鞘层变化,在厚鞘层情况下,用朗谬尔探针测量了在不同偏压和主放电电流下的离子电流,并计算出不同放电电流下的电子密度,给出了电子密度的顺流分布。

The change of the sheath in the flowing plasmas is discussed. The ion current is measured by using Langmuir electrostatic probe in various bias and D. C. current in the thick sheath, and the electron densities in various D. C. current by the relation of electron density versus ion current, are calculated and the electron density along the gas flow are presented.