Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak
Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak
复制标题
东托卡马克边界等离子体中斑点和空洞的观测
DOI:
10.1088/1009-0630/13/4/05
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发表时间:
2011-08
期刊:
影响因子:
--
通讯作者:
Jiang Min
中科院分区:
文献类型:
--
作者:
Rasmussen, J. Juul;Xu Guosheng;Zhang Wei;Chang Jiafeng;Wang Liang;Liu Shaocheng;Liu Peng;Wang Huiqian;Jiang Min
Intermittent convective transport at the edge and in the scrape-off layer (SOL) of EAST was investigated by using fast reciprocating Langmuir probe. Holes, as part of plasma structures, were detected for the first time inside the shear layer. The amplitude probability distribution function of the turbulence is strongly skewed, with positive skewed events ("blobs") prevailing in the SOL region and negative skewed events ("holes") dominant inside the shear layer. The statistical properties coincide with previous observations from JET. The generation mechanism of blobs and holes is also discussed. In addition burst structure and dynamics character of them are also presented.
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