Effect of ion mean free path length on plasma polarization behind a dust particle in an external electric field. Issue 4 (4th February 2019)

• Record Type: Journal Article
• Authors: Sukhinin, G.I.; Fedoseev, A.V.; Salnikov, M.V.
• Other Names: Clérouin Jean guestEditor.; Mikikian Maxime guestEditor.
• Is Part Of: Contributions to plasma physics. Volume 59:Issue 4/5(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-02-04
• Subjects: dipole moment -- dusty plasma -- ion cloud; Plasma (Ionized gases) -- Periodicals; Electronic journals; 530.44
• DOI: 10.1002/ctpp.201800152
• Languages: English
• ISSNs: 0863-1042

Abstract

Abstract : In this paper, a self‐consistent numerical model that describes the behavior of plasma around an isolated, highly charged dust particle is presented. Using the developed model, self‐consistent distributions of the space charge density and plasma potential in the presence of an external electric field are obtained. These distributions are thoroughly analysed though Legendre decomposition. For different dust plasma parameters, such as the radius of the dust particle, the amplitude of the external field, and the mean free path of ions, the dipole moment of the ion cloud surrounding the dust particle is calculated. It turns out that the dependencies of the dipole moment on the value of the external electric field obtained for different parameters are reduced to a single curve by simple scaling.