Parametric scattering in electron‐cyclotron resonance heating

Autor:	J. A. Heikkinen, S. J. Karttunen
Jazyk:	angličtina
Rok vydání:	1985
Předmět:	Physics Scattering Physics::Plasma Physics Dispersion relation Dielectric heating Physics::Space Physics General Engineering Electron temperature Resonance Electron Atomic physics Electromagnetic radiation Electron cyclotron resonance
Zdroj:	Heikkinen, J & Karttunen, S 1985, ' Parametric scattering in electron-cyclotron resonance heating ', The Physics of Fluids, vol. 29, no. 4, pp. 1120-1126 . https://doi.org/10.1063/1.865910
ISSN:	1089-7666 1070-6631
DOI:	10.1063/1.865910
Popis:	The problem of parametric scattering of the extraordinary and ordinary waves near electron‐cyclotron frequency off ion‐cyclotron waves is investigated. Convective thresholds for an inhomogeneous plasma are obtained analytically in the case when the scattered ordinary or extraordinary waves and the ion‐cyclotron wave are weakly damped. There are no restrictions on the angles the waves make with the ambient magnetic field. The dependence of the thresholds on the plasma density, electron and ion temperatures, and propagation angles is described. It is found that in present‐day electron‐cyclotron resonance heating experiments (I≲1 kW/cm2) the thresholds are evidently too high for parametric scattering, but in high‐intensity (I≳10 kW/cm2) experiments the possibility for scattering exists.
Databáze:	OpenAIRE
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