Memorias de investigación
Ponencias en congresos:
PLASMA-WALL INTERACTION IN LASER FUSION REACTORS: NEW PLASMA AND LASER
Año:2012
Áreas de investigación
  • Fisica rp -- fisica de la radiacion,
  • Fisica pl -- plasmas and fluidos,
  • Fisica id -- instrumentacion y analisis de datos
Datos
Descripción
Dry-wall laser fusion chambers will have to withstand strong bursts of X-rays and fast charged particles which will deposit tens of kJ/m2 and implant more than 1018 particles/m2 in less than 4-5 microseconds at a repetition rate of a few Hz. Large chamber dimensions and resistant plasma facing materials must be combined to guarantee the chamber performance under the expected threats due to such bursts: heating, fatigue, cracking, formation of defects, retention of light species, swelling and erosion [1]. Novel materials, based on nanostructured W and C alloys, are specifically being designed to facilitate the release of implanted species while retaining good properties to accommodate large temperate changes and mechanical stresses [2]. The bottle-neck to select the appropriate materials is the lack of facilities in which those components can be tested under realistic conditions. The present contribution aims at improving that situation by proposing the use of high-intense pulsed ion beams (HIPIB) and Ultraintense Lasers to recreate the plasma conditions present in fusion reactors. HIPIB technologies were initially developed for inertial fusion driver systems. Later new applications with HIPIB were proposed [3]. Our approach is to take advantage of the huge intensity pulses provided by HIPIB to meet the irradiation conditions expected in the first wall of laser fusion chambers. By different known mechanisms, Ultraintense Lasers have the potential to generate very short and energetic beams of high fluxes of ions [4] and X-rays [5] with a spectral distribution similar to that of the inertial fusion bursts. The authors will show the most recent experimental results in the realization of such proposals. References [1] J. Alvarez, R. Gonzalez-Arrabal, A. Rivera, E. Del Rio, D. Garoz, E. Hodgson, F. Tabares, R. Vila, and M. Perlado. Fusion Engineering and Design, 86, 1762 (2011) [2] J. Alvarez, A. Rivera, R. Gonzalez-Arrabal, D. Garoz, E. Del Rio and M. Perlado. Fusion Science and Technology, 60, 565 (2011) [3] G.E. Remnev, et al. Surface and Coatings Technology 114 (1999) 206?212 and references therein. [4] C.M. Brenner et al. Laser and Particle Beams, 29, 345 (2011) [5] J. Galy, M. Maucec, D.J. Hamilton, R. Edwards and J. Magill. New Journal of Physics 9, 23 (2007
Internacional
Si
Nombre congreso
39th EPS Conference on Plasma Physics 16th International Congress on Plasma Physics
Tipo de participación
960
Lugar del congreso
Stockholm (Sweden)
Revisores
Si
ISBN o ISSN
2-914771-24-X
DOI
Fecha inicio congreso
02/07/2012
Fecha fin congreso
06/07/2012
Desde la página
1
Hasta la página
7
Título de las actas
European physical society
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Departamento: Ingeniería Nuclear
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear