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Fast ignition of inertial fusion targets by laser-driven carbon beams

Phys. Plasmas 16, 102701 (2009); doi:10.1063/1.3234248

Published 7 October 2009

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J. J. Honrubia,1 J. C. Fernández,2 M. Temporal,1 B. M. Hegelich,2,3 and J. Meyer-ter-Vehn4
1ETSI Aeronáuticos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
2Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
3Fakultät für Physik, LMU München, D-85748 Garching, Germany
4Max-Planck-Institut für Quantenoptik, D-85748 Garching, Germany

Two-dimensional simulations of ion beam driven fast ignition are presented. Ignition energies of protons with Maxwellian spectrum and carbon ions with quasimonoenergetic and Maxwellian energy distributions are evaluated. The effect of the coronal plasma surrounding the compressed deuterium-tritium is studied for three different fuel density distributions. It is found that quasimonoenergetic ions have better coupling with the compressed deuterium-tritium and substantially lower ignition energies. Comparison of quasimonoenergetic carbon ions and relativistic electrons as ignitor beams shows similar laser energy requirements, provided that a laser to quasimonoenergetic carbon ion conversion efficiency around 10% can be achieved. ©2009 American Institute of Physics
History: Received 19 May 2009; accepted 1 September 2009; published 7 October 2009
Permalink: http://link.aip.org/link/?PHPAEN/16/102701/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.38.Kd
    Laser-plasma acceleration of electrons and ions
  • 52.65.Ww
    Hybrid methods (plasma simulation)
  • 52.57.Kk
    Fast laser ignition of compressed fusion fuels
  • YEAR: 2009

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ISSN:
1070-664X (print)   1089-7674 (online)
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