title: Sheath structure and formation of dust voids in cylindrical plasma discharges.
abstract: Using a self-consistent two-dimensional fluid model the structure of the plasma sheath in a cylindrical system is investigated. The results show that there is a bumping potential in the central axis resulting in the larger outward directing ion drag force with respect to the opposite electric field force. And the process of the formation of dust voids is studied in the sheath by molecular-dynamics simulation.
authors.affiliation: Key Laboratory of Basic Plasma Physics, Chinese Academy of Sciences, and Department of Modern Physics, University of Science and Technology of China, 230026 Hefei, China.
authors.forename: Zuquan
authors.initials: Z
authors.lastname: Hu
authors.forename: Yinhua
authors.initials: Y
authors.lastname: Chen
authors.forename: Feng
authors.initials: F
authors.lastname: Huang
authors.forename: Gui-fen
authors.initials: GF
authors.lastname: Shi
authors.forename: Jugao
authors.initials: J
authors.lastname: Zheng
authors.forename: M Y
authors.initials: MY
authors.lastname: Yu