New Microwave Diagnostic Theory for Measurement of Electron Density in Atmospheric Plasmas
ZHANG Shu, HU Xi-Wei
College of Electric and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074
New Microwave Diagnostic Theory for Measurement of Electron Density in Atmospheric Plasmas
ZHANG Shu;HU Xi-Wei
College of Electric and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074
关键词 ：
52.70.Gw ,
52.35.Hr ,
52.20.Fs ,
52.25.Ya
Abstract ： We present the phase shift of an electromagnetic wave passing through an atmospheric plasma layer. In this kind of plasma, the phase shift depends not only on the line average electron density and layer width, but also on the electron-neutral collision frequency. Since the collision frequency is close to or even larger than the incident microwave frequency, a one-dimensional code for the numerical solution of the wave equation with full time and space variables is established to give the phase shift. When the width and the pressure (hence the electron-neutral collision frequency) are known, the measurement of phase shift will uniquely determine the line average electrons density in an atmospheric plasma.
Key words ：
52.70.Gw
52.35.Hr
52.20.Fs
52.25.Ya
出版日期: 2005-01-01
:
52.70.Gw
(Radio-frequency and microwave measurements)
52.35.Hr
(Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid))
52.20.Fs
(Electron collisions)
52.25.Ya
(Neutrals in plasmas)
引用本文:
ZHANG Shu;HU Xi-Wei. New Microwave Diagnostic Theory for Measurement of Electron Density in Atmospheric Plasmas[J]. 中国物理快报, 2005, 22(1): 168-170.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I1/168
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