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Long wavelength gradient drift instability in Hall plasma devices. I. Fluid theory

Frias, Winston ; Smolyakov, Andrei I. ; Kaganovich, Igor D. ; Raitses, Yevgeny

Physics of Plasmas, July 2012, Vol.19(7) [Periódico revisado por pares]

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  • Título:
    Long wavelength gradient drift instability in Hall plasma devices. I. Fluid theory
  • Autor: Frias, Winston ; Smolyakov, Andrei I. ; Kaganovich, Igor D. ; Raitses, Yevgeny
  • Assuntos: Articles
  • É parte de: Physics of Plasmas, July 2012, Vol.19(7)
  • Descrição: The problem of long wavelength instabilities in Hall thruster plasmas is revisited. A fluid model of the instabilities driven by the E 0 × B drift in plasmas with gradients of density, electron temperature, and magnetic field is proposed. It is shown that full account of compressibility of the electron flow in inhomogeneous magnetic field leads to quantitative modifications of earlier obtained instability criteria and characteristics of unstable modes. Modification of the stability criteria due to finite temperature fluctuations is investigated.
  • Idioma: Inglês

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