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Energy absorption in cold inhomogeneous plasmas - The Herlofson paradox.Confirmation of Barston's (1964) conclusions regarding the underlying mechanism of the Herlofson paradox by examining in detail several analytically tractable cases of delta-function and sinusoidal excitation. The effects of collisions and nonzero electron temperature in determining the steady state fields and dissipation are considered. Energy absorption without dissipation in plasmas is shown to be analogous to that occurring after application of a signal to a network of lossless resonant circuits. This analogy is pursued and is extended to cover Landau damping in a warm homogeneous plasma in which the resonating elements are the electron streams making up the velocity distribution. Some of the practical consequences of resonant absorption are discussed, together with a number of paradoxical plasma phenomena which can also be elucidated by considering a superposition of normal modes rather than a single Fourier component.
Document ID
19730037474
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Crawford, F. W.
Harker, K. J.
(Stanford University Stanford, Calif., United States)
Date Acquired
August 7, 2013
Publication Date
December 1, 1972
Subject Category
Physics, Plasma
Accession Number
73A22276
Distribution Limits
Public
Copyright
Other

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