Effects of the relative motion of different particles on the wave instability in dusty plasmas

Journal Article · Sun Jun 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4882681· OSTI ID:22299959

Gao, Dong-Ning; Hong, Xue-Ren; Lin, Mai-mai; Han, Juan-fang ^[1]; Duan, Wen-shan ^[2]; Yang, Lei ^[3]

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1. College of Physics and Electronic Engineering and Joint Laboratory of Atomic and Molecular Physics of NWNU, Lanzhou 730000 (China)
2. College of Physics and Electronic Engineering and Joint Laboratory of Atomic an Molecular Physics of NWNU and IMPCAS, Northwest Normal University, Lanzhou 730070, Gansu, China and Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)
3. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu (China)

Theoretical study is carried out for the dust acoustic waves in a dusty plasma. The dispersion relation is obtained from the fluid dynamical model. It is found that the wave frequency depends on the electron number density, wave number, and the speed of electrons or ions. The dependencies of the instability on the system parameters are also discussed. It is found that the long wavelength wave is usually unstable, which may be useful in the plasma physics, especially in the magnetic confined fusion system or the charged beam dynamics in the accelerated driven system.

• OSTI ID: 22299959
• Journal Information: Physics of Plasmas, Vol. 21, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM DYNAMICS
DISPERSION RELATIONS
ELECTRONS
IONS
PLASMA
PLASMA INSTABILITY
SOUND WAVES
THERMONUCLEAR DEVICES
VELOCITY
WAVELENGTHS