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      https://www.ias.ac.in/article/fulltext/pram/080/04/0677-0684

    • Keywords

       

      Absolute parametric instability; separation method; anisotropic plane; plasma waveguide; nonuniform plasma.

    • Abstract

       

      The paper reports an analysis of the effect of spatial plasma nonuniformity on absolute parametric instability (API) of electrostatic waves in magnetized plane waveguides subjected to an intense high-frequency (HF) electric field using the separation method. In this case the effect of strong static magnetic field is considered. The problem of strong magnetic field is solved in 1D nonuniform plane plasma waveguide. The equation describing the spatial part of the electric potential is obtained. Also, the growth rates and conditions of the parametric instability for periodic and aperiodic cases are obtained. It is found that the spatial nonuniformity of the plasma exerts a stabilizing effect on the API. It is shown that the growth rates of periodic and aperiodic API in nonuniform plasma are less compared to that of uniform plasma.

    • Author Affiliations

       

      Khaled Hamed El-Shorbagy1 2 Atef Ahmed El-Bendary3 4 Shatha Jameel Monaquel1

      1. Mathematics Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
      2. Plasma Physics and Nuclear Fusion Department, Nuclear Research Center, Atomic Energy Authority, Cairo, Egypt
      3. Physics Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt
      4. College of Science and Humanity Studies, Salman Ibn Abdulazeez University, Solayl, Saudi Arabia
    • Dates

       
  • Pramana – Journal of Physics | News

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