Observation of Fast Ion Losses Induced by Various MHD Modes Driven by Fast Ions and Bulk Plasma Pressure in the Large Helical Device
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概要
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Results from a scintillator-based lost-fast ion probe newly installed at the horizontally elongated outboard side of the Large Helical Device are presented. Correlating with bursts of toroidal Alfvén eigenmodes (TAEs) and energetic-particle continuum modes (EPMs), recurrent increases in beam ion losses were observed during co-neutral beam injections. Beam ion loss rate was also enhanced, correlating with low-frequency interchange modes driven by the bulk plasma pressure gradient near the plasma edge.
著者
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ISOBE Mitsutaka
National Insitute for Fusion Science
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TOI Kazuo
National Insitute for Fusion Science
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TOI Kazuo
National Institute for Fusion science, 322-6 Oroshi-cho, Toki, Japan
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OGAWA Kunihiro
Department of Energy Science and Engineering, Nagoya University, Nagoya 464-8603, Japan
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ISOBE Mitsutaka
National Institute for Fusion science, 322-6 Oroshi-cho, Toki, Japan
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OGAWA Kunihiro
Department of Energy Science and Engineering, Nagoya University
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