Plasma voids (holes) in a dusty plasma

Mamun, A.A. and Shukla, P.K. and Bingham, R. (2002) Plasma voids (holes) in a dusty plasma. Physics Letters A, 298 (2-3). pp. 179-184. ISSN 0375-9601 (https://doi.org/10.1016/S0375-9601(02)00472-3)

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Abstract

A theory for plasma voids (large amplitude plasma holes) in a dusty plasma is presented. Specifically, it is proposed that the plasma voids are self-consistent solutions of Poisson's equation in which the electron density response is Boltzmannian and the ion density response is non-Maxwellian due to the ion trapping in large amplitude plasma potentials. Poisson's equation, with appropriate electron and ion number densities, is then reduced to an energy integral which provides criteria for the existence of the plasma voids. The latter are characterized as regions of significant ion and electron density depletions in association with negative plasma potentials. The voids shrink when the dust grains are added into the plasma, and they tend to disappear if the dust number density is sufficiently high.

  • Item type:Article
    ID code:52569
    Dates:
    Date
    Event
    3 June 2002
    Published
    2 May 2002
    Published Online
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:10 Apr 2015 13:25
    Last modified:08 Apr 2024 22:05
    URI:https://strathprints.strath.ac.uk/id/eprint/52569
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