Charge Fluctuation of Dust Grain and Its Impact on Dusty-Acoustic Wave Damping

Journal Article · Mon Oct 31 04:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2134673· OSTI ID:20726825

Atamaniuk, B; Zuchowski, K ^[1]

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1. Institute of Fundamental Technological Research, Polish Academy of Sciences, 00-049 Warsaw Swietokrzyska 21 (Poland)

We consider the influence of dust charge fluctuations on damping of the dust-ion-acoustic waves. It is assumed that all grains have equal masses but charges are not constant in time -- they may fluctuate in time. The dust charges are not really independent of the variations in the plasma potentials. All modes will influence the charging mechanism, and feedback will lead to several new interesting and unexpected phenomena. The charging of the grains depends on local plasma characteristics. If the waves disturb these characteristic, then charging of the grains is affected and the grain charge is modified, with a resulting feedback on the wave mode. In the case considered here, when the temperature of electrons is much greater than the temperature of the ions and the temperature of electrons is not great enough for further ionization of the ions, we show that attenuation of the acoustic wave depends only on one phenomenological coefficient.

• OSTI ID: 20726825
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 799; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATTENUATION
DAMPING
DUSTS
ELECTRONS
FEEDBACK
FLUCTUATIONS
ION ACOUSTIC WAVES
IONIZATION
IONS
MASS
PLASMA
PLASMA POTENTIAL
SOUND WAVES