Turbulence and transport characteristics of a barrier in a toroidal plasma

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

研究成果: Contribution to journalArticle査読

33 被引用数 (Scopus)

抄録

Turbulence and zonal flow at a transport barrier are studied with twin heavy ion beam probes in a toroidal helical plasma. A wavelet analysis is used to extract turbulence properties, e.g. spectra of both density and potential fluctuations, the coherence and the phase between them and the dispersion relation. Particle transport estimated from the fundamental characteristics is found to clearly rise with their intermittent activities after the barrier is broken down. Time-dependent analysis reveals that the intermittency of turbulence is correlated with the evolution of the stationary zonal flow.

本文言語英語
ページ(範囲)S205-S212
ジャーナルPlasma Physics and Controlled Fusion
48
4
DOI
出版ステータス出版済み - 4 1 2006

All Science Journal Classification (ASJC) codes

  • 原子力エネルギーおよび原子力工学
  • 凝縮系物理学

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