Effect of levitated dust kinetics in the dynamic evolution of inhomogeneous plasma sheath |
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| Institution: | 1. Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam;2. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam;1. Mesoscopic and Multilayers Structures Laboratory, Department of Physics, Faculty of Science,University of Dschang, P.O. Box 479 Dschang, Cameroon;2. Laboratory of Electronics and Signal Processing, Department of Physics, Faculty of Science, University of Dschang, P.O. Box 67 Dschang, Cameroon |
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| Abstract: | The main goal here is to study theoretically the formation of plasma sheath in an inhomogeneous dusty plasma. The effect of weak ionization of the dust grains as similar to the Townsend discharge has been incorporated to see how it influences the evolution of sheath. Sheath equation has been derived to describe the properties of sheath structures analytically and numerically. It has shown that the ionization along with the inhomogeneity affects significantly the growth of sheath which has been highlighted elaborately for some typical plasma parameters. After getting well defined sheath region, dynamical behaviour of levitated dust grains into the sheath has been studied. The totality of the findings has been centred around the estimation of dust surface potential, dust sizes along with the generation of net force on dust grains. Both inhomogeneous and ionization effects allow the dust grains in acquiring different potential to sustain equilibrium in different places. As a result of this, nebulons and the dust cloudlike structures are electrically charged. |
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| Keywords: | Inhomogeneous plasma Dust grains Ionization Sheath |
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