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

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

Descripción

Título: Stability analysis for dusty plasma under grain charge fluctuations due to non-Maxwellian electron distributions
Autor/es:
  • Donoso Vargas, Jose Manuel
  • Sánchez Torres, Antonio
  • Conde López, Luis
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 37th EPS Conference on Plasma Physics
Fechas del Evento: 21/06/2010 - 25/06/2010
Lugar del Evento: Dublín, Irlanda
Título del Libro: Proceedings of the 37th EPS Conference on Plasma Physics
Fecha: 2010
ISBN: 2-914771-62-2
Volumen: 34A
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 7703
Identificador DC: http://oa.upm.es/7703/
Identificador OAI: oai:oa.upm.es:7703
URL Oficial: http://ocs.ciemat.es/EPS2010PAP/html/index.html
Depositado por: Memoria Investigacion
Depositado el: 28 Jun 2011 08:18
Ultima Modificación: 20 Abr 2016 16:46
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