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Test of models for electron transport in laser produced plasmas

Phys. Plasmas 12, 072702 (2005); doi:10.1063/1.1929777

Published 20 June 2005

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D. G. Colombant
Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375

W. M. Manheimer
RSI Inc., Lanham, Maryland 20706

M. Busquet
ARTEP Inc., Columbia, Maryland 21042
This paper examines five different models of electron thermal transport in laser produced spherical implosions. These are classical, classical with a flux limit f, delocalization, beam deposition model, and Fokker–Planck solutions. In small targets, the results are strongly dependent on f for flux limit models, with small f's generating very steep temperature gradients. Delocalization models are characterized by large preheat in the center of the target. The beam deposition model agrees reasonably well with the Fokker–Planck simulation results. For large, high gain fusion targets, the delocalization model shows the gain substantially reduced by the preheat. However, flux limitation models show gain largely independent of f, with the beam deposition model also showing the same high gain. ©2005 American Institute of Physics
History: Received 12 November 2004; accepted 12 April 2005; published 20 June 2005
Permalink: http://link.aip.org/link/?PHPAEN/12/072702/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.57.Fg
    Implosion symmetry and hydrodynamic instability for laser ICF including Rayleigh-Taylor, Richtmyer-Meshkov, imprint, etc
  • 52.65.Kj
    Magnetohydrodynamic and fluid equation (plasma simulation)
  • 52.25.Fi
    Plasma transport properties
  • YEAR: 2005

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