Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Studies on targets for inertial fusion ignition demonstration at the HiPER facility
Año:2009
Áreas de investigación
  • Electrónica
Datos
Descripción
Recently, a European collaboration has proposed the High Power Laser Energy Research (HiPER) facility, with the primary goal of demonstrating laser driven inertial fusion fast ignition. HiPER is expected to provide 250 kJ in multiple, 3¿ (wavelength ¿ = 0.35 ¿m), nanosecond beams for compression and 70 kJ in 10¿20 ps, 2¿ beams for ignition. The baseline approach is fast ignition by laser-accelerated fast electrons; cones are considered as a means to maximize ignition laser¿fuel coupling. Earlier studies led to the identification of an all-DT shell, with a total mass of about 0.6 mg as a reference target concept. The HiPER main pulse can compress the fuel to a peak density above 500 g cm¿3 and an areal density ¿R of about 1.5 g cm¿2. Ignition of the compressed fuel requires that relativistic electrons deposit about 20 kJ in a volume of radius of about 15 ¿m and a depth of less than 1.2 g cm¿2 . The ignited target releases about 13 MJ. In this paper, additional analyses of this target are reported. An optimal irradiation pattern has been identified. The effects on fuel compression of the low-mode irradiation non-uniformities have been studied by 2D simulations and an analytical model. The scaling of the electron beam energy required for ignition (versus electron kinetic energy) has been determined by 2D fluid simulations including a 3D Monte Carlo treatment of relativistic electrons, and agrees with a simple model. Integrated simulations show that beam-induced magnetic fields can reduce beam divergence. As an alternative scheme, shock ignition is studied. 2D simulations have addressed optimization of shock timing and absorbed power, means to increase laser absorption efficiency and the interaction of the igniting shocks with a deformed fuel shell.
Internacional
Si
JCR del ISI
Si
Título de la revista
NUCLEAR FUSION
ISSN
0029-5515
Factor de impacto JCR
2,73
Información de impacto
Volumen
49
DOI
10.1088/0029-5515/49/5/055008
Número de revista
55008
Desde la página
1
Hasta la página
7
Mes
ABRIL
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Participante: A. Schiavi (Universita di Roma La Sapienza, Italia)
  • Participante: J. Breil (CELIA, Univ. Bordeaux 1, France)
  • Participante: J.R. Davies (Instituto Superior Tecnico, Lisboa, Portugal)
  • Participante: M. Olazabal-Loume (CELIA, Univ. Bordeaux 1, France)
  • Participante: Ph. Nicolai (CELIA, Univ. Bordeaux 1, France)
  • Participante: L. Hallo (CELIA, Univ. Bordeaux 1, France)
  • Participante: G. Schurtz (CELIA, Univ. Bordeaux 1, France)
  • Participante: X, Ribeyre (CELIA, Univ. Bordeaux 1, France)
  • Participante: S. Atzeni (Universita di Roma La Sapienza, Italia)
  • Participante: J.L. Feugeas (CELIA, Univ. Bordeaux 1, France)
  • Participante: P.M. Maire (CELIA, Univ. Bordeaux 1, France)
  • 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
S2i 2022 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)