Plasma effects on the spontaneous emission of synchrotron radiation from weakly relativistic electrons
作者:
H. P. Freund,
C. S. Wu,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1977)
卷期:
Volume 20,
issue 6
页码: 963-973
ISSN:0031-9171
年代: 1977
DOI:10.1063/1.861984
出版商: AIP
数据来源: AIP
摘要:
A method for computing the spectral emissivity of spontaneous synchrotron radiation is discussed. The Klimontovich 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.
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