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

Rozmus, W.; Chapman, T.; Brantov, A.; Winjum, B. J.; Berger, R. L.; Brunner, S.; Bychenkov, V. Yu.; Tableman, A.; Tzoufras, M.; Glenzer, S.

doi:10.1063/1.4939603

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

Journal Article · Fri Jan 15 00:00:00 EST 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4939603· OSTI ID:1458713

Rozmus, W. ^[1]; Chapman, T. ^[2];

^[3];

^[4]; Berger, R. L. ^[2]; Brunner, S. ^[5];

^[3]; Tableman, A. ^[4];

^[4]; Glenzer, S. ^[6]

Univ. of Alberta, Edmonton, AB (Canada)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Russian Academy of Sciences, Moscow (Russia); VNIIA, ROSATOM, Moscow (Russia)
UCLA, Los Angeles, CA (United States)
Assoc. EURATOM-Confederation Suisse, Lausanne (Switzerland)
LCLS, Stanford, CA (United States)

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.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344; FC02-04ER54789; NA0001833

OSTI ID:: 1458713

Alternate ID(s):: OSTI ID: 1421116

Report Number(s):: LLNL-JRNL-734912; 885747; TRN: US1901514

Journal Information:: Physics of Plasmas, Vol. 23, Issue 1; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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