Identification of zonal flows in a toroidal plasma

A. Fujisawa, K. Itoh, H. Iguchi, K. Matsuoka, S. Okamura, A. Shimizu, T. Minami, Y. Yoshimura, K. Nagaoka, C. Takahashi, M. Kojima, H. Nakano, S. Ohsima, S. Nishimura, M. Isobe, C. Suzuki, T. Akiyama, K. Ida, K. Toi, S. I. ItohP. H. Diamond

研究成果: Contribution to journalArticle

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An experimental confirmation of the presence of zonal flows in magnetically confined toroidal plasma using an advanced diagnostic system-dual heavy ion beam probes was presented. A fluctuation spectrum of electric field, a spatiotemporal structure of the zonal flows, their long-range correlation with toroidal symmetry, and the difference in the zonal flow amplitude with and without a transport barrier were provided by the simultaneous observation of an electric field at two distant toroidal locations in the high temperature plasma. The waveforms without any phase shift demonstrate the toroidal symmetry of electric field fluctuation. It was observed that the waveform indicate the fluctuation amplitude of ∼1V.

元の言語英語
記事番号165002
ページ(範囲)165002-1-165002-4
ジャーナルPhysical review letters
93
発行部数16
DOI
出版物ステータス出版済み - 10 15 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Fujisawa, A., Itoh, K., Iguchi, H., Matsuoka, K., Okamura, S., Shimizu, A., Minami, T., Yoshimura, Y., Nagaoka, K., Takahashi, C., Kojima, M., Nakano, H., Ohsima, S., Nishimura, S., Isobe, M., Suzuki, C., Akiyama, T., Ida, K., Toi, K., ... Diamond, P. H. (2004). Identification of zonal flows in a toroidal plasma. Physical review letters, 93(16), 165002-1-165002-4. [165002]. https://doi.org/10.1103/PhysRevLett.93.165002