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Memorias de investigación
Artículos en revistas:
Comparison between experimental Langmuir probes and three species onedimensional kinetic simulations
Año:2016
Áreas de investigación
  • Física,
  • Ingenierías
Datos
Descripción
The biasing of Langmuir probes to obtain the appropriate measurements in weakly ionized plasmas is addressed in this work. The experimental results show discrepancies when this measurement method is employed with sweep signals of different symmetries or frequencies. This means that the method provides signal dependent plasma parameters, which hinder its diagnosis. In this work, a three species one-dimensional kinetic model is applied with a sweep electric field to simulate the dynamics of a weakly ionized plasma close to a Langmuir probe. With the same symmetries and frequencies for the sweep signal in both the experimental and numerical problems, a qualitative similar behaviour is found. The response of the three species plasma due to changes of the electric field is analysed by means of a three species kinetic collisional model. The effect of constant averaged or energy dependent characteristic collision frequencies is studied. These numerical results are useful to provide a first explanation of the discrepancies found in the experimental data and improve the measurement process. Published by AIP Publishing.
Internacional
Si
JCR del ISI
Si
Título de la revista
Physics of Plasmas
ISSN
1070-664X
Factor de impacto JCR
2,249
Información de impacto
Datos JCR del año 2013
Volumen
23
DOI
10.1063/1.4965425
Número de revista
23
Desde la página
103514-1
Hasta la página
103514-7
Mes
OCTUBRE
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Jorge Gonzalez Muñoz (UPM)
  • Autor: S. P: Tierno (UCV)
  • Autor: Jose Manuel Donoso Vargas (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Investigación en Fusión Inercial y Física de Plasmas
  • Departamento: Física Aplicada a Las Ingenierías Aeronáutica y Naval
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