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  • 1
    Digitale Medien
    Digitale Medien
    Detuning effect of negative ions on ion-acoustic-decay instabilities of electromagnetic waves (1998)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 5 (1998), S. 319-321 
    Details
    ISSN: 1089-7674
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: It is proved analytically in the fluid-Maxwell theory of plasma that negative ions can stabilize the ion-acoustic-decay instability of electromagnetic waves by changing and making off-resonant the electron plasma wave frequency. The number density ratio of negative to positive ions that is needed to suppress the instability scales with the square root of the pump intensity difference from the minimum threshold. © 1998 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.872710
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  • 2
    Digitale Medien
    Digitale Medien
    Detuning effect of negative ions on oscillating-two-stream instabilities of electromagnetic waves (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 3513-3515 
    Details
    ISSN: 1089-7674
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: It is proved analytically in the three-fluid theory of a plasma that the effect of negative ions on the oscillating-two-stream instability results in a change of the frequency mismatch between the electromagnetic pump and the electron plasma wave. Ion thermal and collision terms are assumed to be negligible. This negative ion effect can completely detune and suppress the instability, if the number density ratio of negative to positive ions is greater than 2(v20/v2th), where v0 is the oscillation velocity amplitude of electrons under the pump and vth is the electron thermal speed. © 1996 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.871593
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  • 3
    Digitale Medien
    Digitale Medien
    Effect of negative ions on filamentation instability in collisionless three-fluid theory of plasmas with cold ion species (1996)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 3 (1996), S. 3182-3184 
    Details
    ISSN: 1089-7674
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The growth rate of filamentation is examined analytically, as a function of the number density and the particle mass of negative ions, in the collisionless three-fluid theory of a plasma with cold ions. The growth rate dependence on the number density shows a qualitative change according to whether the pump intensity is below or above a critical level. In all cases of the pump intensity, the higher particle mass of negative ions means the weaker growth of filamentation. © 1996 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.871621
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  • 4
    Digitale Medien
    Digitale Medien
    Effect of negative ions on stimulated Raman scattering in a plasma (1990)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 2 (1990), S. 2272-2273 
    Details
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: In the linear theory of stimulated Raman scattering based on the three-fluid model, the effect of negative ions is reflected in the growth rate through simple functions of P (the relative fraction of negative ions in the number of negatively charged particles in a plasma). The Raman instability is weakened by negative ions, when the pump intensity is well above the threshold, while it is strengthened close to the threshold.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.859411
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