Comment on The absorption mechanisms of whistler waves in cool, dense, cylindrically bounded plasmas'' [Phys. Fluids B [bold 5], 3864 (1993)]

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870884· OSTI ID:6598335

Shoucri, M ^[1]

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1. Centre Canadien de Fusion Magnetique, Varennes, Quebec, J3X 1S1 (Canada)

In a recent publication [Phys. Fluids B [bold 5], 3864 (1993)], a study has been presented on the absorption mechanisms of whistler waves in cool, dense, cylindrically bounded plasmas. The dispersion relation obtained was used to explore the transition from Landau dominated damping to cyclotron dominated damping. Although the frequencies of these waves are well below the electron cyclotron frequency, the cyclotron resonance terms were retained in full since for high density plasmas, the density dependent parallel wave number can be large enough to bring thermal electrons into cyclotron resonance. It is the purpose of the present Comment to show that, within the approximations used in the article above, off-diagonal terms, which were neglected, can give an important contribution to the dispersion and damping of the waves for the parameters considered, and therefore should be retained in the calculation.

• OSTI ID: 6598335
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:10; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
ABSORPTION
COLD PLASMA
CONFIGURATION
CYCLOTRON RESONANCE
CYLINDRICAL CONFIGURATION
DAMPING
DIELECTRIC TENSOR
DIFFERENTIAL EQUATIONS
DISPERSION RELATIONS
EQUATIONS
INSTABILITY
MAXWELL EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RESONANCE
SORPTION
TENSORS
WHISTLER INSTABILITY