Particle Simulation on the Propagation and Plasma Heating of the Lower Hybrid Wave in the Nonuniform System
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概要
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A particle simulation model which treats the wave excitation and propagation in the nonuniform density by the external source is developed and applied for study of the lower hybrid heating in a fusion device. As the linear theory predicts, the cold lower hybrid wave is observed to increase its perpendicular wave number as it propagates to the higher density region and to damp away near the turning point. When the wave amplitude is large or the wave energy is about a half of the initial kinetic energy at a surface of plasma, the following features are observed for the increase of the ion and electron kinetic energies. Ion perpendicular energy distributions are observed to be approximated by the two Maxwell distributions or to have the components of the high energy tail, whose parallel velocities satisfy the resonance condition : ν_<∥>=(ω-ıΩ_i)/k_<∥>, where ω and k_<∥> the frequency and the parallel wave number of the external source, ı is an integer, and Ω_i is the ion cyclotron frequency. An strong increase of the parallel kinetic energy of the electron is observed near the plasma surface. These are mainly due to the trapped electrons and the collisional heating.
- 核融合科学研究所の論文
著者
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Abe Hirotada
Research Information Center Institute Of Plasma Physics Nagoya University:(present Address) Departme
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Abe Hirotada
Research Information Center Institute Of Plasma Physics Nagoya University:department Of Electronics
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Itatani Ryohei
Research Information Center Institute Of Plasma Physics Nagoya University
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Itatani Ryohei
Research Information Center Institute Of Plasma Physics Nagoya University:department Of Electronics
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Kajitani Hiroyuki
Research Information Center, Institute of Plasma Physics, Nagoya University
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Kajitani Hiroyuki
Research Information Center Institute Of Plasma Physics Nagoya University:department Of Electronics
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