NDLI: Interaction of electromagnetic waves with plasma torches

Content Provider	IEEE Xplore Digital Library
Author	Koretzky, E. Kuo, S.P.
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. Eng., Polytech. Univ., Farmingdale, NY, USA (Koretzky, E.)
Abstract	Summary form only given. Scattering of electromagnetic waves by plasma torches is studied experimentally and theoretically in a rectangular waveguide. Up to three plasma torches are placed below an X band waveguide so that the plasma streams through a set of 1/4" holes in the bottom of the guide and out another set of 1/4" holes in the top. The plasma columns of the torch cross the path of propagation of microwaves (-15 dBm, 10 GHz) in the waveguide and cause absorption and scattering losses of the microwaves. The signal received at the other end of the waveguide is monitored with an HP8569B spectrum analyzer. By changing the number of torches (from 0 to 3) appearing in the waveguide, the dependence of the power loss of the wave on the plasma volume, is determined. The theory of the wave scattered by a dielectric post in the rectangular waveguide is extended to a lossy dielectric. Using the plasma density and volume as variable parameters, the attenuation of the wave by the plasma torches (1 to 3) are evaluated. By matching the numerical results with the corresponding experimental results, the plasma density and volume can be determined.
File Size	113135
File Format	PDF
ISBN	0780347927
ISSN	07309244
DOI	10.1109/PLASMA.1998.677779
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electromagnetic scattering Plasma waves Electromagnetic waveguides Plasma density Dielectric losses Rectangular waveguides Waveguide theory Microwave propagation Electromagnetic wave absorption Propagation losses
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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