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, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

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