Identification of zonal flows in a toroidal plasma

akihide 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, Sanae ItohP. H. Diamond

Research output: Contribution to journalArticle

274 Citations (Scopus)

Abstract

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.

Original languageEnglish
JournalPhysical Review Letters
Volume93
Issue number16
DOIs
Publication statusPublished - Oct 15 2004

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toroidal plasmas
electric fields
waveforms
symmetry
high temperature plasmas
heavy ions
phase shift
ion beams
probes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

fujisawa, A., Itoh, K., Iguchi, H., Matsuoka, K., Okamura, S., Shimizu, A., ... Diamond, P. H. (2004). Identification of zonal flows in a toroidal plasma. Physical Review Letters, 93(16). https://doi.org/10.1103/PhysRevLett.93.165002

Identification of zonal flows in a toroidal plasma. / fujisawa, akihide; 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.; Itoh, Sanae; Diamond, P. H.

In: Physical Review Letters, Vol. 93, No. 16, 15.10.2004.

Research output: Contribution to journalArticle

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, Itoh, S & Diamond, PH 2004, 'Identification of zonal flows in a toroidal plasma', Physical Review Letters, vol. 93, no. 16. https://doi.org/10.1103/PhysRevLett.93.165002
fujisawa, akihide ; 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. ; Itoh, Sanae ; Diamond, P. H. / Identification of zonal flows in a toroidal plasma. In: Physical Review Letters. 2004 ; Vol. 93, No. 16.
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AU - Itoh, K.

AU - Iguchi, H.

AU - Matsuoka, K.

AU - Okamura, S.

AU - Shimizu, A.

AU - Minami, T.

AU - Yoshimura, Y.

AU - Nagaoka, K.

AU - Takahashi, C.

AU - Kojima, M.

AU - Nakano, H.

AU - Ohsima, S.

AU - Nishimura, S.

AU - Isobe, M.

AU - Suzuki, C.

AU - Akiyama, T.

AU - Ida, K.

AU - Toi, K.

AU - Itoh, Sanae

AU - Diamond, P. H.

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