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Abstract

Selective electron-cyclotron processes are investigated using the phase-space spectra of emission and absorption for arbitrary momentum distribution functions. It is shown that in general, for a system of electrons, a sharp resonant velocity does not exist because of the finite half-width of the radiation spectra. However, the maximum of power absorption (emission) determines the velocity range of the predominant electrons and can represent the counterpart of the one-particle relativistic resonance velocity. It is also shown that, in contrast with the Maxwellian distribution, the emission and absorption spectra are not proportional for a non-thermal plasma and, therefore, emission and absorption depend on electrons in different regions of the accessible phase space.

Additional information

Authors: FIDONE I, CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR);GIRUZZI G, CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR);CHIOZZI G, Università di Ferrara, Dipartimento di Fisica, Ferrara (IT);KRIVENSKI V, CIEMAT, Madrid (ES)
Bibliographic Reference: Paper presented: Technical Committee Meeting on electron-cyclotron emission and electron-cyclotron resonance heating, Anhui (CN), May 8-11, 1991
Availability: Available from (1) as Paper EN 34662 ORA
Record Number: 199110392 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en