Zonal flow driven by energetic particle during magneto-hydro-dynamic burst in a toroidal plasma

S. Ohshima, A. Fujisawa, A. Shimizu, H. Nakano, H. Iguchi, Y. Yoshimura, K. Nagaoka, T. Minami, M. Isobe, S. Nishimura, C. Suzuki, T. Akiyama, C. Takahashi, M. Takeuchi, T. Ito, T. Watari, R. Kumazawa, S. I. Itoh, K. Itoh, K. MatsuokaS. Okamura

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Abstract

The internal structural measurements of electric field and density using twin heavy ion beam probes have been performed to elucidate the nonlinear evolution of the magneto-hydro-dynamic (MHD) bursty phenomenon driven by the interaction with high-energy particles in a toroidal plasma. The results have given the finest observation of the internal structure of plasma quantities, such as electric field, density and magnetic field distortion, which nonlinearly develop during the MHD phenomenon. In particular, the finding of a new kind of oscillating zonal flow driven by interaction between energetic particles and MHD modes should be emphasized for burning state plasmas.

Original languageEnglish
Pages (from-to)1945-1952
Number of pages8
JournalPlasma Physics and Controlled Fusion
Volume49
Issue number11
DOIs
Publication statusPublished - Nov 1 2007

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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    Ohshima, S., Fujisawa, A., Shimizu, A., Nakano, H., Iguchi, H., Yoshimura, Y., Nagaoka, K., Minami, T., Isobe, M., Nishimura, S., Suzuki, C., Akiyama, T., Takahashi, C., Takeuchi, M., Ito, T., Watari, T., Kumazawa, R., Itoh, S. I., Itoh, K., ... Okamura, S. (2007). Zonal flow driven by energetic particle during magneto-hydro-dynamic burst in a toroidal plasma. Plasma Physics and Controlled Fusion, 49(11), 1945-1952. https://doi.org/10.1088/0741-3335/49/11/013