Alfven wave dispersion behavior in single- and multicomponent plasmas

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3322852· OSTI ID:21347152

Rahbarnia, K; Grulke, O; Klinger, T ^[1]; Ullrich, S ^[1]; Sauer, K ^[2]

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1. MPI for Plasma Physics, EURATOM Association, 17491 Greifswald (Germany)
2. University of Alberta-Edmonton, Alberta, T6G 2H1 (Canada)

Dispersion relations of driven Alfven waves (AWs) are measured in single- and multicomponent plasmas consisting of mixtures of argon, helium, and oxygen in a magnetized linear cylindrical plasma device VINETA [C. Franck, O. Grulke, and T. Klinger, Phys. Plasmas 9, 3254 (2002)]. The decomposition of the measured three-dimensional magnetic field fluctuations and the corresponding parallel current pattern reveals that the wave field is a superposition of L- and R-wave components. The dispersion relation measurements agree well with calculations based on a multifluid Hall-magnetohydrodynamic model if the plasma resistivity is correctly taken into account.

• OSTI ID: 21347152
• Journal Information: Physics of Plasmas, Vol. 17, Issue 3; Other Information: DOI: 10.1063/1.3322852; (c) 2010 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
ARGON
DISPERSION RELATIONS
FLUCTUATIONS
HELIUM
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
MIXTURES
OXYGEN
PLASMA
THREE-DIMENSIONAL CALCULATIONS
DISPERSIONS
ELEMENTS
FLUID MECHANICS
FLUIDS
GASES
HYDRODYNAMICS
HYDROMAGNETIC WAVES
MECHANICS
NONMETALS
RARE GASES
VARIATIONS