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Author Cavenago, M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION ♦ PHYSICS ♦ ION SOURCES ♦ PLASMA ♦ MICROWAVE RADIATION ♦ WAVE PROPAGATION ♦ WAVEGUIDES ♦ POLARIZATION ♦ NUMERICAL SOLUTION
Abstract The propagation of the transverse microwave {ital E}{sub {ital x}} {ital E}{sub {ital y}} into electron cyclotron resonance (ECR) plasmas is studied (with simplified plasma dynamics), emphasizing that plasma dimensions and wavelength {lambda} are comparable, which is the case with most ion sources. The coupling to the {ital E}{sub {ital z}} field is included. A simple system of coupled equations is found and a closed fourth-order differential equation is obtained. Nonpropagating modes are easily solved. Numerical solutions are shown for propagating modes applied to the ECR Alice dimension (radius 3 cm, {lambda}{approx_equal}2 cm). A simplified formula for the cavity admittance is given, involving the matching of the guide to cavity, where each mode contribution is weighted; weights are computed for the circular waveguide case. {copyright} {ital 1996 American Institute of Physics.}
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-03-01
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 67
Issue Number 3
Technical Publication No. CONF-9509125-


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