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Cross-Field Ion Transport and Heating Due to Parametric Decay of Lower Hybrid Waves

Published Web Location

https://doi.org/10.1103/physrevlett.50.836
Creative Commons 'BY' version 4.0 license
Abstract

Parametric decay of lower hybrid pump waves into daughter lower hybrid waves and electrostatic ion-cyclotron waves was observed above instability threshold power levels in a fully ionized plasma. The ion velocity distribution function was measured in time and space by the nonperturbing techniques of laser-induced fluorescence and ion optical tagging. Significant ion heating, Ti up to 6Ti0, and cross-field transport were observed in the regime ω0≳12ωpi.

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