skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Determination of the parameters of a fluctuating plasma from modulation of a microwave signal

Abstract

The modulation of an electromagnetic wave by fluctuations of the electron density is described. Analytical relations are obtained under the assumption that the fluctuation frequency and the effective collision frequency are small compared with the frequency of the electromagnetic wave. Using the modulation factor it is possible to find the mean statistical value and the mean- square fluctuations of the electron density in a given interval of time. Experimental investigations have been performed on the decaying plasma of a pulsed reflex discharge in a metal chamber at 4, 8, and 13 mm. Measurements with a double electric probe to determine the fluctuations of the electric field in the plasma simultaneously with the microwave measurements are used to investigate the relation between the modulation of the transmitted wave and the electric field in the plasma. (auth)

Authors:
; ;
Publication Date:
Research Org.:
Physicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Khar'kov
OSTI Identifier:
4352252
NSA Number:
NSA-29-025721
Resource Type:
Journal Article
Journal Name:
Sov. Phys.-Tech. Phys. (Engl. Transl.), v. 18, no. 2, pp. 207-210
Additional Journal Information:
Other Information: Orig. Receipt Date: 30-JUN-74
Country of Publication:
United States
Language:
English
Subject:
N70200* -Physics-Controlled Thermonuclear Research- Diagnostics; *MICROWAVE RADIATION- PLASMA DIAGNOSTICS; *PLASMA DIAGNOSTICS- MICROWAVE RADIATION; ELECTRIC PROBES; ELECTROMAGNETIC RADIATION; ELECTRON DENSITY; FREQUENCY DEPENDENCE; PLASMA DENSITY; VARIATIONS

Citation Formats

Dushin, L A, Skibenko, A I, and Fromin, I P. Determination of the parameters of a fluctuating plasma from modulation of a microwave signal. United States: N. p., 1973. Web.
Dushin, L A, Skibenko, A I, & Fromin, I P. Determination of the parameters of a fluctuating plasma from modulation of a microwave signal. United States.
Dushin, L A, Skibenko, A I, and Fromin, I P. 1973. "Determination of the parameters of a fluctuating plasma from modulation of a microwave signal". United States.
@article{osti_4352252,
title = {Determination of the parameters of a fluctuating plasma from modulation of a microwave signal},
author = {Dushin, L A and Skibenko, A I and Fromin, I P},
abstractNote = {The modulation of an electromagnetic wave by fluctuations of the electron density is described. Analytical relations are obtained under the assumption that the fluctuation frequency and the effective collision frequency are small compared with the frequency of the electromagnetic wave. Using the modulation factor it is possible to find the mean statistical value and the mean- square fluctuations of the electron density in a given interval of time. Experimental investigations have been performed on the decaying plasma of a pulsed reflex discharge in a metal chamber at 4, 8, and 13 mm. Measurements with a double electric probe to determine the fluctuations of the electric field in the plasma simultaneously with the microwave measurements are used to investigate the relation between the modulation of the transmitted wave and the electric field in the plasma. (auth)},
doi = {},
url = {https://www.osti.gov/biblio/4352252}, journal = {Sov. Phys.-Tech. Phys. (Engl. Transl.), v. 18, no. 2, pp. 207-210},
number = ,
volume = ,
place = {United States},
year = {Wed Aug 01 00:00:00 EDT 1973},
month = {Wed Aug 01 00:00:00 EDT 1973}
}