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  • 1
    Electronic Resource
    Electronic Resource
    Quasilinear theory of collisionless electron heating in radio frequency gas discharges (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 2413-2421 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: On the basis of quasilinear kinetic theory, the electron heating of rf discharges is treated for characteristic scale lengths of the heating field much shorter than the electron mean free path. The analysis considers plasmas bounded by walls providing specular reflection. The expressions for the coefficients of electron diffusion in energy space are obtained and analyzed for inductively and capacitively coupled plasmas. Accounting for the oscillatory spatial structure of the penetrating electric field in the regime of anomalous skin effect leads to a decrease of the diffusion coefficient for high, and an increase for low, energy electrons. It is shown that the presence of a second boundary in the case of collisionless plasma slabs results in a similar effect. The formation of energy distribution functions in various regimes of collisionless heating is discussed. The diffusion coefficients are presented taking into account ambipolar electric fields. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872222
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  • 2
    Electronic Resource
    Electronic Resource
    Nonlinearity: Basis for self-consistent modeling of surface wave produced plasmas in diffusion controlled regimes (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 3162-3175 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A fluid model of surface wave produced discharges is presented for diffusion controlled regimes taking into account simultaneously nonlinear contributions from stepwise ionization and volume recombination. The saturation of metastable densities with growing electron density reduces the effect of step ionization and allows recombination to become effective toward high electron densities. The charged particle continuity and energy balance equations linking electron density and electric field intensity yield the plasma permittivity under conditions of strong ionization nonlinearity. This permittivity is valid for high frequency discharges in general. In the second part of the modeling this nonlinear permittivity is introduced into the electrodynamical relations for discharges maintained by the field of traveling surface waves, and subsequently the self-consistent behavior of plasma and wave characteristics along the discharge length is calculated. Both the main part of the discharge column produced by Joule heating in the plasma volume and the end section of the discharge, where the mechanism of resonance absorption of the wave power close to the tube wall can sustain the discharge, are considered. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.871591
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  • 3
    Electronic Resource
    Electronic Resource
    Hydrodynamic theory for the magnetization current in a collisionless plasma (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 34-37 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is demonstrated that the magnetization current, which arises from the interaction of high-frequency electromagnetic waves with hot collisionless, unmagnetized electron plasmas, can be derived by means of the ten-moment system of hydrodynamic equations. It is pointed out that the magnetization current is solely associated with the thermal motion of the electrons, and that it therefore does not appear in cold plasmas. This expression for the magnetization current agrees with those derived previously from kinetic theory. The present derivation provides, however, a comparatively much clearer physical picture of the origin of this current. In the limit where the phase velocity is much larger than the electron thermal velocity, a new result for the high-frequency induced vorticity of the plasma is obtained. It is also shown that the magnetization current in this paper is responsible for a novel scattering mechanism in which the high-frequency electromagnetic waves are scattered off vortex motions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859536
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  • 4
    Electronic Resource
    Electronic Resource
    Dispersion theory of surface waves on an inhomogeneous plasma in a strong high-frequency field (1973)
    Springer
    Journal of applied mechanics and technical physics 14 (1973), S. 8-11 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The spectrum of the characteristic surface oscillations and stability of a plasma in a strong high-frequency (hf) electric field are studied. It is shown that inhomogeneity of the plasma leads to spatial dispersion and to specific damping of stable oscillations of a plasma in an external hf field, the frequency of which greatly exceeds the plasma frequency. A systematic theory of parametric resonance at the frequency of the electronic surface oscillations is developed taking account of the inhomogeneity of the plasma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00850569
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  • 5
    Electronic Resource
    Electronic Resource
    The viscosity of a plasma in a strong magnetic field (1965)
    Springer
    Journal of applied mechanics and technical physics 6 (1965), S. 11-15 
    Details
    ISSN: 1573-8620
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The viscosity of a plasma is studied under conditions in which a magnetic field influences particle collisions. The expressions obtained for the viscosity coefficients differ significantly from those obtained in the normal theory. It is shown that in sufficiently strong magnetic fields a temperature difference arises between the electron and ion plasma components which is proportional to the drift velocity and depends logarithmically on the magnetic field strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00913419
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    Paper (German National Licenses)
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