Nonlinear Dynamics of the Dust Grain Charge and Dust Acoustic Waves in a Plasma with an Ion Beam

Abstract

The temporal evolution of the dust grain charge is investigated for the first time in a dusty plasma with an ion beam. The grain charge attains to the stationary state after the fluctuation of short time. The dust charge increases as the ion beam temperature and the plasma ion density increase, but decreases as the beam density increases. The speed of the wave increases as the ion density and temperature increase, whereas it decreases as the dust charge increases. The variable dust mass-to-charge and ion-to-electron density ratios govern the existence of dust acoustic waves. The findings of this investigation may be useful in understanding laboratory plasma phenomena.

Triple-sheath structures in a plasma having trapped dust grains

“…13,14 The results obtained in this paper drastically differ from those obtained in the previous papers. [15][16][17] FIG. 3.…”

Large-amplitude double layers in a dusty plasma with an arbitrary streaming ion beam

“…Such circumstances in plasma applications and the case of realizing dusty plasmas on a laboratory scale have accelerated active studies on dust phenomena in plasmas. Nejoh [24] studied large-amplitude dust-acoustic waves in a plasma with an ion beam. He treated the ion beam as thermal without the inclusion of the particle streaming in his calculation of the beam current at the dust grain surface.…”

Interaction of ion beam with dust grains produces dust-acoustic solitary waves in Herbig-Haro objects

“…The interaction of the polar jets with the interstellar medium would lead to create Herbig-Haro objects (Bally et al 1996). Extensive work have been done to investigate the behavior of the dust grains in the multicomponent plasmas with or without ion beam (see e.g., Nejoh 1999;Ivlev and Morfill 2001;El-Labany and Moslem 2002;ElLabany and El-Taibany 2003;Wang et al 2009;Das et al 2010;El-Labany et al 2011a, 2011bMoslem et al 2011;Abdelsalam et al 2011;El-Tantawy and Moslem 2012).…”