Comparison of Velocity Shear with Turbulence Reduction Driven by Biasing in a Simple Cylindrical Slab Plasma

被引：0
|
作者：
K.W.GENTLE [1 ]
K.LIAO [1 ]
K.LEE [1 ]
W.L.ROWAN [1 ]
机构：
[1] Institute of Fusion Studies, University of Texas at Austin
来源：
Plasma Science and Technology | 2010年 / 12卷 / 04期
关键词：
turbulence suppression; shear stabilization; velocity shear; bias;
D O I：
暂无
中图分类号：
TL612 [];
学科分类号：
摘要：
In an experimental realization of the sheared cylindrical slab, the level of plasmaturbulence is strongly reduced by application of a sufficient bias potential difference in the radialdirection. Density fluctuation levels Δnrms/n decrease by more than a factor of five. The ionflow velocity profile is measured spectroscopically from the Doppler shift of an argon ion line.Comparison of the shearing rates with the turbulent amplitudes as a function of bias show norelation between the shearing rate and turbulence reduction, contrary to expectations.
引用
收藏
页码：391 / 396
页数：6
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