Stochastic heating of plasma at electron cyclotron resonance

Autor:	V. A. Buts, O. V. Manuilenko, K. N. Stepanov, Yu. A. Turkin, V. G. Svichenskii, A. N. Antonov, E.A. Kornilov, O. F. Kovpik
Rok vydání:	1999
Předmět:	Physics Physics and Astronomy (miscellaneous) Field (physics) law Cyclotron Cyclotron resonance Electron Photon energy Atomic physics Kinetic energy Ion cyclotron resonance Electron cyclotron resonance law.invention
Zdroj:	Scopus-Elsevier
ISSN:	1090-6487 0021-3640
Popis:	It is shown theoretically and experimentally that stochastic heating of plasma electrons is highly efficient. Calculations have shown that over the course of 100 periods of an external microwave field the kinetic energy of the particles reaches values of around 1.0 MeV and the average energy reaches values of the order of 0.3 MeV in the field of two oppositely propagating characteristic (eigen) waves of a cylindrical waveguide, with amplitudes 24 kV/cm in a 1 kG stationary magnetic field. Stochastic instability develops as a result of overlapping of non-linear cyclotron resonances. The experimental results agree with the theory: When these waves are excited by a 0.9 MW external source, above a threshold of 0.45 MW one obtains x rays with a photon energy corresponding to a maximum electron energy of the order of 1 MeV over about 800 periods of the external microwave field.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::737d68ba8cd28f2e9c50c6dbd5beda7f https://doi.org/10.1134/1.568101 Zobrazit plný text záznamu Plný text ve formátu PDF