Stability analysis for dusty plasma under grain charge fluctuations due to non-Maxwellian electron distributions

Donoso Vargas, Jose Manuel and Sánchez Torres, Antonio and Conde López, Luis (2010). Stability analysis for dusty plasma under grain charge fluctuations due to non-Maxwellian electron distributions. In: "37th EPS Conference on Plasma Physics", 21/06/2010 - 25/06/2010, Dublín, Irlanda. ISBN 2-914771-62-2.

Description

Title: Stability analysis for dusty plasma under grain charge fluctuations due to non-Maxwellian electron distributions
Author/s:
  • Donoso Vargas, Jose Manuel
  • Sánchez Torres, Antonio
  • Conde López, Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: 37th EPS Conference on Plasma Physics
Event Dates: 21/06/2010 - 25/06/2010
Event Location: Dublín, Irlanda
Title of Book: Proceedings of the 37th EPS Conference on Plasma Physics
Date: 2010
ISBN: 2-914771-62-2
Volume: 34A
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The most relevant characteristic of a complex plasma is the dust charge as well as the dust charging process itself which controls different collective and individual behaviors of the plasma. The dust charging has been exhaustively studied providing several theoretical approaches that have improved the early Orbital Motion Limited (OML) description [1, 2]. The OML is considered as a suitable model and, at least, it provides a certain perspective of the main plasma parameters involved in the charging processes. Recent works have stressed the importance of the electron and ion velocity distribution functions in addressing the description of plasma stability analysis under the frame of plasma fluid description, including dust charge fluctuations. The consideration of non-Maxwellian distribution functions has been proved to induce plasma departures from the usual Maxwellian equilibrium, specially under the development of intense electric fields that can accelerate charges till superthermal velocities [3]. In these cases, the distribution function tails fit well to a power-law dependence even for electrons. In this communication, we devote attention to the effect of non Maxwellian electron distribution functions on the collective plasma behavior through a linear analysis of perturbed fluid equations. The stability of a partially ionized complex plasma with a non Maxwellian electron population is studied by including this feature on the dust charge fluctuation for infinite and finite dust grain mass.

More information

Item ID: 7703
DC Identifier: http://oa.upm.es/7703/
OAI Identifier: oai:oa.upm.es:7703
Official URL: http://ocs.ciemat.es/EPS2010PAP/html/index.html
Deposited by: Memoria Investigacion
Deposited on: 28 Jun 2011 08:18
Last Modified: 20 Apr 2016 16:46
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