Landau damping of ion acoustic wave in Lorentzian multi-ion plasmas

Journal Article · Thu Sep 15 04:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3633237· OSTI ID:22043481

Arshad, Kashif ^[1]; Mahmood, S ^[2]; Mirza, Arshad M ^[3]

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1. National Center for Plasma Physics, Quaid-i-Azam University, Shadra Valley Road, Islamabad 44000 (Pakistan)
2. Theoretical Plasma Physics Division (TPPD), PINSTECH, P.O. Nilore, Islamabad 44000 (Pakistan)
3. Department of Physics, Theoretical Plasma Physics Group, Quaid-i-Azam University, Islamabad 45320 (Pakistan)

The Landau damping rates of ion acoustic wave are studied by using Vlasov-Poisson model for unmagnetized Lorentzian or kappa distributed plasma containing electrons, positively and negatively charged ions. It is found that the damping rate of ion acoustic wave is increased with the decrease of kappa (i.e., the spectral index of Lorentzian distribution) value. The damping rates of the electrostatic wave in multi-ion component plasmas are discussed in detail which depends on electron to ion temperature ratio and ions masses and density ratios. The numerical results are also shown by choosing some typical experimental parameters of multi-ion plasmas.

• OSTI ID: 22043481
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 18; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DENSITY
ELECTRONS
ION ACOUSTIC WAVES
ION TEMPERATURE
IONS
LANDAU DAMPING
MASS
NUMERICAL ANALYSIS
PLASMA
PLASMA DENSITY