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Title: Resonance between heat-carrying electrons and Langmuir waves in inertial confinement fusion plasmas

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. As a result, an experiment to measure changes in thermal plasma fluctuation levels due to a thermal gradient is proposed.

Authors:
 [1];  [2]; ORCiD logo [3]; ORCiD logo [4];  [2];  [5]; ORCiD logo [3];  [4]; ORCiD logo [4];  [6]
  1. Univ. of Alberta, Edmonton, AB (Canada)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Russian Academy of Sciences, Moscow (Russia); VNIIA, ROSATOM, Moscow (Russia)
  4. UCLA, Los Angeles, CA (United States)
  5. Assoc. EURATOM-Confederation Suisse, Lausanne (Switzerland)
  6. LCLS, Stanford, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1458713
Alternate Identifier(s):
OSTI ID: 1421116
Report Number(s):
LLNL-JRNL-734912
Journal ID: ISSN 1070-664X; 885747; TRN: US1901514
Grant/Contract Number:  
AC52-07NA27344; FC02-04ER54789; NA0001833
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 23; Journal Issue: 1; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Rozmus, W., Chapman, T., Brantov, A., Winjum, B. J., Berger, R. L., Brunner, S., Bychenkov, V. Yu., Tableman, A., Tzoufras, M., and Glenzer, S. Resonance between heat-carrying electrons and Langmuir waves in inertial confinement fusion plasmas. United States: N. p., 2016. Web. doi:10.1063/1.4939603.
Rozmus, W., Chapman, T., Brantov, A., Winjum, B. J., Berger, R. L., Brunner, S., Bychenkov, V. Yu., Tableman, A., Tzoufras, M., & Glenzer, S. Resonance between heat-carrying electrons and Langmuir waves in inertial confinement fusion plasmas. United States. doi:10.1063/1.4939603.
Rozmus, W., Chapman, T., Brantov, A., Winjum, B. J., Berger, R. L., Brunner, S., Bychenkov, V. Yu., Tableman, A., Tzoufras, M., and Glenzer, S. Fri . "Resonance between heat-carrying electrons and Langmuir waves in inertial confinement fusion plasmas". United States. doi:10.1063/1.4939603. https://www.osti.gov/servlets/purl/1458713.
@article{osti_1458713,
title = {Resonance between heat-carrying electrons and Langmuir waves in inertial confinement fusion plasmas},
author = {Rozmus, W. and Chapman, T. and Brantov, A. and Winjum, B. J. and Berger, R. L. and Brunner, S. and Bychenkov, V. Yu. and Tableman, A. and Tzoufras, M. and Glenzer, S.},
abstractNote = {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. As a result, an experiment to measure changes in thermal plasma fluctuation levels due to a thermal gradient is proposed.},
doi = {10.1063/1.4939603},
journal = {Physics of Plasmas},
number = 1,
volume = 23,
place = {United States},
year = {2016},
month = {1}
}

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