Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Fast ignition induced by shocks generated by laser-accelerated proton beams.
Año:2009
Áreas de investigación
  • Fisica am -- fisica atomica y molecular
Datos
Descripción
Fast ignition (FI) of a deuterium-tritium target compressed to a density of 500 g cm(-3) by the energy deposition of two laser-accelerated proton beams is studied by two-dimensional (2D) and three-dimensional (3D) numerical simulations. The first proton beam has an annular radial profile while the second beam is cylindrical. Both beams are characterized by a super-Gaussian profile in radius. A 3D-hydrodynamic study has been performed to identify a way to generate a nearly annular energy deposition by using a discrete number of cylindrical beams. It has been found that the energy deposited by the first proton beam can modify the density and temperature of the plasma before the arrival of the second beam allowing ignition in a zone not directly irradiated by the beams. Thus, differently from the classical FI concept, fuel ignition is not a direct consequence of plasma heating by the particle beam. Indeed, ignition occurs as a result of the synergetic action of the shocks generated by proton energy deposition.
Internacional
Si
JCR del ISI
Si
Título de la revista
PLASMA PHYSICS AND CONTROLLED FUSION
ISSN
0741-3335
Factor de impacto JCR
2,299
Información de impacto
Volumen
51
DOI
10.1088/0741-3335/51/3/035010
Número de revista
3
Desde la página
035010
Hasta la página
035010
Mes
MARZO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: S. Atzeni
  • Autor: Mauro Temporal (UPM)
  • Autor: Rafael Ramis Abril (UPM)
  • Autor: Jose Javier Honrubia Checa (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 la Ingeniería Aeronáutica
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