Turbulence and transport characteristics of a barrier in a toroidal plasma

被引：29
作者：
Fujisawa, A.
Shimizu, A.
Nakano, H.
Ohsima, S.
Itoh, K.
Iguchi, H.
Yoshimura, Y.
Minami, T.
Nagaoka, K.
Takahashi, C.
Kojima, M.
Nishimura, S.
Isobe, M.
Suzuki, C.
Akiyama, T.
Nagashima, Y.
Ida, K.
Toi, K.
Ido, T.
Itoh, S. -I.
Matsuoka, K.
Okamura, S.
Diamond, P. H.
机构：
[1] Natl Inst Fus Sci, Toki 50952, Japan
[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
[3] Kyushu Univ, RIAM, Kasuga, Fukuoka 816, Japan
来源：
PLASMA PHYSICS AND CONTROLLED FUSION | 2006年 / 48卷 / 04期
关键词：
D O I：
10.1088/0741-3335/48/4/S15
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
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.
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页码：S205 / S212
页数：8
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