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

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作者：
K.W.GENTLE
K.LIAO
K.LEE
W.L.ROWAN
机构：
[1] InstituteofFusionStudies,UniversityofTexasatAustin
来源：
Plasma Science and Technology | 2010年 / 04期
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摘要：
<正> 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.
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页码：391 / 396
页数：6
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