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Plasma effects on the spontaneous emission of synchrotron radiation from weakly relativistic electronsA method for computing the spectral emissivity of spontaneous synchrotron radiation is discussed. The Klimontovich (1967) formalism in plasma kinetic theory is adopted in which an ensemble average of the microscopically emitted power is considered. The present method clarifies the meaning of the random phase approximation which is imposed in several existing theories of synchrotron radiation. Both the effects of dielectric polarization and two-particle correlations are included in the present discussion. The theory is applied to the case of a plasma in thermal equilibrium, for which it is shown that the effect of pair correlations on the emissivity vanishes. On the other hand, the effect of dielectric polarization is studied numerically for a wide range of parameters.
Document ID
19770061507
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Freund, H. P.
(Maryland Univ. College Park, MD, United States)
Wu, C. S.
(Maryland, University College Park, Md., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1977
Publication Information
Publication: Physics of Fluids
Volume: 20
Subject Category
Plasma Physics
Accession Number
77A44359
Funding Number(s)
CONTRACT_GRANT: NGL-21-002-005
Distribution Limits
Public
Copyright
Other

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