The dust charging effect on electrostatic ion waves in a dusty plasma with trapped electrons

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872414· OSTI ID:526913

Nejoh, Y ^[1]

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1. Graduate School of Engineering and Department of Electronic Engineering, Hachinohe Institute of Technology, Myo-Obiraki, Hachinohe, 031 (Japan)

The effect of the dust charging and the influence of the ion density and temperature on electrostatic nonlinear ion waves in a dusty plasma having trapped electrons are investigated by numerical calculation. The nonlinear structure of the dust charging is examined, and it is shown that the characteristics of the dust charge number sensitively depend on the electrostatic potential, Mach number, trapped electron temperature, ion density, and temperature. An increase of the ion temperature decreases the dust charging rate and the propagation speed of ion waves. It turns out that a decrease of the trapped electron temperature increases the charging rate of dust grains. It is found that the existence of ion waves sensitively depends on the ion to electron density ratio. New findings of variable-charge dust grain particles, ion density, and temperature in a dusty plasma with trapped electrons are predicted. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 526913
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 4; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DUSTS
ELECTROSTATICS
ION DENSITY
ION TEMPERATURE
ION WAVES
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
PLASMA
PLASMA DENSITY
PLASMA IMPURITIES
TRAPPING