Experimental Observation of Anisotropic Magnetic Turbulence in a Reversed Field Pinch Plasma

被引：23
|
作者：
Ren, Y. [1 ]
Almagri, A. F. [1 ]
Fiksel, G. [1 ]
Prager, S. C. [1 ]
Sarff, J. S. [1 ]
Terry, P. W. [1 ]
机构：
[1] Univ Wisconsin, Dept Phys, Ctr Magnet Self Org Lab & Astrophys Plasmas, Madison, WI 53706 USA
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 19期
关键词：
MAGNETOHYDRODYNAMIC DYNAMO; ALFVEN WAVES; FLUCTUATIONS; TRANSPORT; DISCRETE;
D O I：
10.1103/PhysRevLett.107.195002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this Letter we report an experimental study of fully developed anisotropic magnetic turbulence in a laboratory plasma. The turbulence has broad (narrow) spectral power in the perpendicular (parallel) direction to the local mean magnetic field extending beyond the ion cyclotron frequency. Its k(perpendicular to) spectrum is asymmetric in the ion and electron diamagnetic directions. The wave number scaling for the short wavelength fluctuations shows exponential falloff indicative of dissipation. A standing wave structure is found for the turbulence in the minor radial direction of the toroidal plasma.
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页数：5
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