Geodesic Acoustic Mode Spectroscopy II
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概要
- 論文の詳細を見る
An extension of geodesic acoustic mode (GAM) spectroscopy [Plasma Phys. Control. Fusion 49, L7 (2007)] is proposed. The ratio between the lowest frequency of the co-existing ion acoustic mode (IAM) and the frequency of GAM enables us to identify the safety factor of toroidal plasmas. The lowest frequency can be detected by bispectrum analysis when both GAM and IAM are excited. The possibility of measuring the safety factor is discussed.
著者
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Fujisawa Akihide
National Institute For Fusion Science
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Inagaki Shigeru
Research Institute For Applied Mechanics Kyushu University
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Itoh Sanae-i.
Research Instittue For Applied Mechanics Kyushu University
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Itoh Kimitaka
National Inst. For Fusion Sci. Gifu
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NISHIMURA Seiya
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
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NAGASHIMA Yoshihiko
Graduate School of Frontier Science, The University of Tokyo, Kashiwa 277-8561, Japan
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