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Memorias de investigación
Artículos en revistas:
Non-Maxwellian electron distributions in time-dependent simulations of low-Z materials illuminated by a high-intensity X-ray laser
Año:2013
Áreas de investigación
  • Fisica am -- fisica atomica y molecular
Datos
Descripción
The interaction of high intensity X-ray lasers with matter is modeled. A collisional-radiative time-dependent module is implemented to study radiation transport in matter from ultrashort and ultra-intense X-ray bursts. Inverse bremsstrahlung absorption by free electrons, electron conduction or hydrodynamic effects are not considered. The collisional-radiative system is coupled with the electron distribution evolution treated with a Fokker-Planck approach with additional inelastic terms. The model includes spontaneous emission, resonant photoabsorption, collisional excitation and de-excitation, radiative recombination, photoionization, collisional ionization, three-body recombination, auto-ionization and dielectronic capture. It is found that for high densities, but still below solid, collisions play an important role and thermalization times are not short enough to ensure a thermal electron distribution. At these densities Maxwellian and non-Maxwellian electron distribution models yield substantial differences in collisional rates, modifying the atomic population dynamics. (C) 2013 Elsevier B.V. All rights reserved.
Internacional
Si
JCR del ISI
Si
Título de la revista
High Energy Density Physics
ISSN
1574-1818
Factor de impacto JCR
1,603
Información de impacto
Datos JCR del año 2012
Volumen
9
DOI
10.1016/j.hedp.2013.05.010
Número de revista
3
Desde la página
542
Hasta la página
547
Mes
SEPTIEMBRE
Ranking
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Participantes
  • Autor: Alberto Garcia De la Varga (UPM)
  • Autor: Pedro Velarde Mayol (UPM)
  • Autor: François de Gaufridy
  • Autor: David Portillo Garcia (UPM)
  • Autor: Manuel Cotelo Ferreiro (UPM)
  • Autor: Alfonso Barbas Espa (UPM)
  • Autor: Agustín González
  • Autor: Philippe Zeitoun
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Instituto de Fusión Nuclear
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