Parametric Instability of a Lower Hybrid Wave in Two Ion SpeciesPlasma

Research & Reviews: Journal of Pure and Applied Physics

article

Nafis A¹  Moiz A² 

[1] Department of Physics, College of Science, UAE University;Department of Physics, Integral University

关键词: Parametric Instabilities;    Two-ion species plasma;    Lower hybrid wave;    Tokamak;    Radio frequency heating;   

来源: Research & Reviews

【 摘 要 】

Three wave parametric instability of a large amplitude lower hybrid wave in two-ion species plasma is studied analytically. The pump decays into a low frequency mode or quasi mode in the ion cyclotron range of frequency and a lower hybrid wave sideband. The dominant channel of decay is the one for which the low frequency mode is an ion cyclotron wave with frequency close to the ion cyclotron frequency of either ion species. For typical D-T plasma of a tokamak, the growth rate for ω close to deuterium cyclotron frequency, increases with the wave number of the ion cyclotron wave and decreases as the ratio of deuterium to tritium density increases.

【 授权许可】

Unknown