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Showing papers by "Michail Tzoufras published in 2016"

Journal Article•DOI•
Resonance between heat-carrying electrons and Langmuir waves in inertial confinement fusion plasmas

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Wojciech Rozmus1, Thomas Chapman2, A. V. Brantov3, B. J. Winjum4, Richard Berger2, Stephan Brunner5, V. Yu. Bychenkov3, Adam Tableman4, Michail Tzoufras4, Siegfried Glenzer6 •
University of Alberta1, Lawrence Livermore National Laboratory2, Russian Academy of Sciences3, University of California, Los Angeles4, European Atomic Energy Community5, Stanford University6
15 Jan 2016-Physics of Plasmas
TL;DR: In this paper, the effect of temperature gradients and thermal transport on electron distributions in a velocity range resonant with Langmuir waves typical of those produced by stimulated Raman scattering was examined.
Abstract: In ignition scale hot plasmas, temperature gradients and thermal transport modify electron distributions in a velocity range resonant with Langmuir waves typical of those produced by stimulated Raman scattering. We examine the resultant changes to the Landau damping experienced by these Langmuir waves and the levels of thermal plasma fluctuations. The form factor and Thomson scattering cross-section in such plasmas display unique characteristics of the background conditions. A theoretical model and high-order Vlasov-Fokker-Planck simulations are used in our analysis. An experiment to measure changes in thermal plasma fluctuation levels due to a thermal gradient is proposed.

12 citations