Geodesic Acoustic Modes in Multi-Ion System
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概要
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Geodesic acoustic modes (GAMs) in the multi-ion system are investigated. It was found that the high-frequency branch decreases with increase in effective ion mass. The low-frequency branch (ion sound wave, ISW) of the damping rate also becomes small. The ratio between the damping rate of GAM and ISW is found to become order of unity in the region of q < 4 (q is safety factor).
著者
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Takase Yuichi
Graduate School Of Frontier Sciences The Univ. Of Tokyo
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Ejiri Akira
Graduate School Of Frontier Science University Of Tokyo
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Itoh Kimitaka
National Inst. For Fusion Sci. Gifu
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Sasaki Makoto
Graduate School Of Environmental Earth Science Hokkaido University
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TAKASE Yuichi
Graduate School of Frontier Science, University Tokyo, Kashiwa 277-8561, Japan
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