Memorias de investigación
Artículos en revistas:
Fast electron transport and induced heating in aluminium foils
Año:2008
Áreas de investigación
  • Electrónica
Datos
Descripción
Beams of fast electrons have been generated from the ultra-intense laser interaction with Aluminium foil targets. The dynamics of the fast electrons propagation and the level of induced in-depth heating have been investigated using the optical emission from the foils rear side. Important yields of thermal emission, consequence of high target temperatures, were detected for targets thinner than 50 ìm. We precisely characterized the targets in-depth temperature profile in order to reproduce the emission yields. At shallow depth, we show the important heating (estimated to > 100 eV till 15 ìm depth) has a resistive origin upon the neutralizing return current. For deeper regions, because of the bulk component divergence, the fast electron energy losses and induced heating are due to collisions. Coupling the model to the experimental measurements, we were able to quantify the bulk of the fast electron population, corresponding to 35% of the laser energy and a 500 keV temperature.
Internacional
Si
JCR del ISI
No
Título de la revista
Journal of Physics: Conference Series
ISSN
1742-6588
Factor de impacto JCR
0
Información de impacto
Volumen
112
DOI
10.1088/1742-6596/112/2/022088
Número de revista
0
Desde la página
022088-1
Hasta la página
022088-4
Mes
JUNIO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Joao J. Santos CELIA, Univ. Bordeaux 1, Francia
  • Autor: Jose Javier Honrubia Checa UPM
  • Autor: Arnaud Debayle CELIA, Univ. Bordeaux 1, Francia
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 la Ingeniería Aeronáutica