Drift waves, anomalous diffusion and equilibrium in a magnetized plasma column

M. P. Evrard; A. M. Messiaen; P. E. Vandenplas; G. Van Oost

doi:10.1088/0032-1028/21/12/002

Drift waves, anomalous diffusion and equilibrium in a magnetized plasma column

M. P. Evrard, A. M. Messiaen, P. E. Vandenplas, G. Van Oost

Laboratory for Plasma Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Spontaneously excited low-frequency oscillations with a frequency of the order of the characteristic drift frequency omega * have been identified as drift-dissipative waves in a weakly ionized helium plasma column produced by a helical microwave discharge source. Plasma parameters are: plasma density, 5*10⁹-8*10¹⁰ cm^-3; gas pressure, 1-7*10^-3 torr; electron temperature, 3-15 eV; ion temperature, 0.2-1.4 eV; magnetic field, 850-2200 G. These waves propagate mainly in the azimuthal direction, in the same sense as the electron diamagnetic drift velocity and have an azimuthal mode number n=1. The theoretical treatment of the drift-dissipative waves in an inhomogeneous bounded plasma system is carried out in cylindrical geometry.

Original language	English
Article number	002
Pages (from-to)	999-1020
Number of pages	22
Journal	Plasma Physics
Volume	21
Issue number	12
DOIs	https://doi.org/10.1088/0032-1028/21/12/002
Publication status	Published - 1979

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title = "Drift waves, anomalous diffusion and equilibrium in a magnetized plasma column",

abstract = "Spontaneously excited low-frequency oscillations with a frequency of the order of the characteristic drift frequency omega * have been identified as drift-dissipative waves in a weakly ionized helium plasma column produced by a helical microwave discharge source. Plasma parameters are: plasma density, 5*109-8*1010 cm-3; gas pressure, 1-7*10-3 torr; electron temperature, 3-15 eV; ion temperature, 0.2-1.4 eV; magnetic field, 850-2200 G. These waves propagate mainly in the azimuthal direction, in the same sense as the electron diamagnetic drift velocity and have an azimuthal mode number n=1. The theoretical treatment of the drift-dissipative waves in an inhomogeneous bounded plasma system is carried out in cylindrical geometry.",

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T1 - Drift waves, anomalous diffusion and equilibrium in a magnetized plasma column

AU - Evrard, M. P.

AU - Messiaen, A. M.

AU - Vandenplas, P. E.

AU - Van Oost, G.

PY - 1979

Y1 - 1979

N2 - Spontaneously excited low-frequency oscillations with a frequency of the order of the characteristic drift frequency omega * have been identified as drift-dissipative waves in a weakly ionized helium plasma column produced by a helical microwave discharge source. Plasma parameters are: plasma density, 5*109-8*1010 cm-3; gas pressure, 1-7*10-3 torr; electron temperature, 3-15 eV; ion temperature, 0.2-1.4 eV; magnetic field, 850-2200 G. These waves propagate mainly in the azimuthal direction, in the same sense as the electron diamagnetic drift velocity and have an azimuthal mode number n=1. The theoretical treatment of the drift-dissipative waves in an inhomogeneous bounded plasma system is carried out in cylindrical geometry.

AB - Spontaneously excited low-frequency oscillations with a frequency of the order of the characteristic drift frequency omega * have been identified as drift-dissipative waves in a weakly ionized helium plasma column produced by a helical microwave discharge source. Plasma parameters are: plasma density, 5*109-8*1010 cm-3; gas pressure, 1-7*10-3 torr; electron temperature, 3-15 eV; ion temperature, 0.2-1.4 eV; magnetic field, 850-2200 G. These waves propagate mainly in the azimuthal direction, in the same sense as the electron diamagnetic drift velocity and have an azimuthal mode number n=1. The theoretical treatment of the drift-dissipative waves in an inhomogeneous bounded plasma system is carried out in cylindrical geometry.

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SN - 0032-1028

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SP - 999

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JO - Plasma Physics

JF - Plasma Physics

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ER -

Drift waves, anomalous diffusion and equilibrium in a magnetized plasma column

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