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Physics of Plasmas / Volume 17 / Issue 5 / INVITED PAPERS / Lasers, Particle Beams, Accelerators, Radiation Generation

Phys. Plasmas 17, 056702 (2010); http://dx.doi.org/10.1063/1.3312825 (6 pages)

Integrated kinetic simulation of laser-plasma interactions, fast-electron generation, and transport in fast ignition a

a Paper UI2 6, Bull. Am. Phys. Soc. 54, 299 (2009).
A. J. Kemp, B. I. Cohen, and L. Divol

Lawrence Livermore National Laboratory, Livermore, California 94551, USA

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(Received 20 November 2009; accepted 18 January 2010; published online 5 March 2010)

We present new results on the physics of short-pulse laser-matter interaction of kilojoule-picosecond pulses at full spatial and temporal scale using a new approach that combines a three-dimensional collisional electromagnetic particle-in-cell code with a magnetohydrodynamic-hybrid model of high-density plasma. In the latter, collisions damp out plasma waves, and an Ohm’s law with electron inertia effects neglected determines the electric field. In addition to yielding orders of magnitude in speed-up while avoiding numerical instabilities, this allows us to model the whole problem in a single unified framework: the laser-plasma interaction at subcritical densities, energy deposition at relativistic critical densities, and fast- electron transport in solid densities. Key questions such as the multipicosecond temporal evolution of the laser energy conversion into hot electrons, the impact of return currents on the laser-plasma interaction, and the effect of self-generated electric and magnetic fields on electron transport will be addressed. We will report applications to current experiments.

© 2010 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. STANDALONE CONE
  3. HYBRID MODEL
  4. CONE WIRE
  5. CONCLUSION

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KEYWORDS and PACS

Keywords

high-speed optical techniques, hot carriers, ignition, plasma collision processes, plasma density, plasma kinetic theory, plasma light propagation, plasma magnetohydrodynamics, plasma production by laser, plasma simulation, plasma transport processes, plasma waves, relativistic plasmas

PACS

  • 52.38.Dx

    Laser light absorption in plasmas (collisional, parametric, etc.)

  • 52.50.Jm

    Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)

  • 52.25.Fi

    Transport properties

  • 52.20.Fs

    Electron collisions

  • 52.30.Cv

    Magnetohydrodynamics (including electron magnetohydrodynamics)

  • 52.65.Rr

    Particle-in-cell method

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3312825

PUBLICATION DATA

ISSN

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

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    J. Davies, A. R. Bell, M. Haines, and S. Guérin, Phys. Rev. E 56, 7193 (1997).

    L. Gremillet, G. Bonnaud, and F. Amiranoff, Phys. Plasmas 9, 941 (2002)PHPAEN000009000003000941000001.

    A. J. Kemp, Y. Sentoku, V. Sotnikov, and S. Wilks, Phys. Rev. Lett. 97, 235001 (2006).

    T. Ma, M. H. Key, R. J. Mason, K. U. Akli, R. L. Daskalova, R. R. Freeman, J. S. Green, K. Highbarger, P. A. Jaanimagi, J. A. King, K. L. Lancaster, S. P. Hatchett, A. J. MacKinnon, A. G. Macphee, P. A. Norreys, P. K. Patel, R. B. Stephens, W. Theobald, L. D. van Woerkom, M. S. Wei, S. C. Wilks, and F. N. Beg, Phys. Plasmas 16, 112702 (2009)PHPAEN000016000011112702000001.


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