Experimental observation of anisotropic magnetic turbulence in a reversed field pinch plasma

Y. Ren; A. F. Almagri; G. Fiksel; S. C. Prager; J. S. Sarff; P. W. Terry

doi:10.1103/PhysRevLett.107.195002

Experimental observation of anisotropic magnetic turbulence in a reversed field pinch plasma

Y. Ren, A. F. Almagri, G. Fiksel, S. C. Prager, J. S. Sarff, P. W. Terry

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21 Scopus citations

Abstract

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 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.

Original language	English (US)
Article number	195002
Journal	Physical review letters
Volume	107
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.107.195002
State	Published - Oct 31 2011

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.107.195002

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AU - Ren, Y.

AU - Almagri, A. F.

AU - Fiksel, G.

AU - Prager, S. C.

AU - Sarff, J. S.

AU - Terry, P. W.

PY - 2011/10/31

Y1 - 2011/10/31

N2 - 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 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.

AB - 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 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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Experimental observation of anisotropic magnetic turbulence in a reversed field pinch plasma

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