中国物理B ›› 2018, Vol. 27 ›› Issue (5): 55203-055203.doi: 10.1088/1674-1056/27/5/055203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Analysis of Landau damping in radially inhomogeneous plasma column

H Rajabalinia-Jelodar, M K Salem, F M Aghamir, H Zakeri-Khatir   

  1. 1 Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran;
    2 Department of Physics, University of Tehran, Tehran, Iran
  • 收稿日期:2017-08-18 修回日期:2018-02-26 出版日期:2018-05-05 发布日期:2018-05-05
  • 通讯作者: M K Salem E-mail:mkssalem@gmail.com

Analysis of Landau damping in radially inhomogeneous plasma column

H Rajabalinia-Jelodar1, M K Salem1, F M Aghamir2, H Zakeri-Khatir2   

  1. 1 Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran;
    2 Department of Physics, University of Tehran, Tehran, Iran
  • Received:2017-08-18 Revised:2018-02-26 Online:2018-05-05 Published:2018-05-05
  • Contact: M K Salem E-mail:mkssalem@gmail.com

摘要: The Landau damping behavior in a cylindrical inhomogeneous warm magnetized plasma waveguide has been studied. The radial inhomogeneity for different characteristic lengths (L0) with strong spatial dispersion has been taken into account. The analyses have been considered for two limits ωce < ωpe and ωce > ωpe. Due to the radial inhomogeneity of the plasma, all essential equations for studying the Landau damping are calculated in the Bessel-Furrier and differential Bessel-Furrier expansions. The dependence of Landau damping on the inhomogeneity, temperature and external magnetic field for electrostatic modes is scrutinized and described in detail through numerical calculations. The associated numerical results are presented and discussed.

关键词: inhomogeneous warm plasma, cylindrical plasma waveguide, Landau damping, electrostatic modes

Abstract: The Landau damping behavior in a cylindrical inhomogeneous warm magnetized plasma waveguide has been studied. The radial inhomogeneity for different characteristic lengths (L0) with strong spatial dispersion has been taken into account. The analyses have been considered for two limits ωce < ωpe and ωce > ωpe. Due to the radial inhomogeneity of the plasma, all essential equations for studying the Landau damping are calculated in the Bessel-Furrier and differential Bessel-Furrier expansions. The dependence of Landau damping on the inhomogeneity, temperature and external magnetic field for electrostatic modes is scrutinized and described in detail through numerical calculations. The associated numerical results are presented and discussed.

Key words: inhomogeneous warm plasma, cylindrical plasma waveguide, Landau damping, electrostatic modes

中图分类号:  (Plasma interactions with antennas; plasma-filled waveguides)

  • 52.40.Fd
94.20.Fg (Plasma temperature and density) 52.35.Fp (Electrostatic waves and oscillations (e.g., ion-acoustic waves)) 52.25.Tx (Emission, absorption, and scattering of particles)