Coupling between long-range toroidal correlations and radial transport in the TJ-II boundary plasma

被引：7
|
作者：
Silva, C. [1 ]
Hidalgo, C. [2 ]
Pedrosa, M. A. [2 ]
Carralero, D. [2 ]
Tamura, N. [3 ]
Ida, K. [3 ]
机构：
[1] Inst Super Tecn, Assoc Euratom IST, Inst Plasmas & Fusao Nucl, P-1049001 Lisbon, Portugal
[2] Assoc Euratom Ciemat, Madrid 28040, Spain
[3] Natl Inst Fus Sci, Gifu, Japan
来源：
NUCLEAR FUSION | 2011年 / 51卷 / 06期
关键词：
GEODESIC ACOUSTIC MODE; ZONAL FLOWS; EDGE PLASMA; TOKAMAK; FLUCTUATION; TURBULENCE; FREQUENCY; COHERENT; JFT-2M;
D O I：
10.1088/0029-5515/51/6/063025
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：
TJ-II is equipped with two probe systems that allow the simultaneous measurement of the radial and toroidal characteristics of the boundary plasma fluctuations with high temporal resolution. The interplay between long-range toroidal correlations, local cross-field particle transport and radial structure of the edge fluctuations has been investigated. Experimental evidence is presented that both the radial correlation and the turbulent particle transport are reduced in the region dominated by zonal flows (ZFs). Experimental findings show the key role of ZFs in the edge plasma transport regulation.
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页数：6
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