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Three-dimensional particle-in-cell modeling of parametric instabilities near the quarter-critical density in plasmas
Abstract
The nonlinear regime of laser-plasma interactions including both two-plasmon decay (TPD) and stimulated Raman scattering (SRS) instabilities has been studied in three-dimensional (3D) particle-in-cell simulations with parameters relevant to the inertial confinement fusion (ICF) experiments. SRS and TPD develop in the same region in plasmas, and the generation of fast electrons can be described accurately with only the full model including both SRS and TPD. The growth of instabilities in the linear stage is found to be in good agreement with analytical theories. In the saturation stage the low-frequency density perturbations driven by the daughter waves of the SRS side scattering can saturate the TPD and consequently inhibit the fast-electron generation. As a result, the fast-electron flux in 3D modeling is up to an order of magnitude smaller than previously reported in 2D TPD simulations, bringing it close to the results of ICF experiments.
- Authors:
-
[1];
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics and Dept. of Mechanical Engineering
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics and Dept. of Mechanical Engineering; Univ. of Science and Technology of China, Anhui (China)
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics and Dept. of Mechanical Engineering; Univ. of California, San Diego, CA (United States)
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics, Dept. of Mechanical Engineering and Dept. of Physics and Astronomy
- Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
- Publication Date:
- Research Org.:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- Contributing Org.:
- Laboratory for Laser Energetics, University of Rochester
- OSTI Identifier:
- 1571562
- Grant/Contract Number:
- NA0003856
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review E
- Additional Journal Information:
- Journal Volume: 100; Journal Issue: 4; Journal ID: ISSN 2470-0045
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Wen, H., Maximov, A. V., Yan, R., Li, J., Ren, C., and Tsung, F. S. Three-dimensional particle-in-cell modeling of parametric instabilities near the quarter-critical density in plasmas. United States: N. p., 2019.
Web. doi:10.1103/PhysRevE.100.041201.
Wen, H., Maximov, A. V., Yan, R., Li, J., Ren, C., & Tsung, F. S. Three-dimensional particle-in-cell modeling of parametric instabilities near the quarter-critical density in plasmas. United States. doi:10.1103/PhysRevE.100.041201.
Wen, H., Maximov, A. V., Yan, R., Li, J., Ren, C., and Tsung, F. S. Fri .
"Three-dimensional particle-in-cell modeling of parametric instabilities near the quarter-critical density in plasmas". United States. doi:10.1103/PhysRevE.100.041201.
@article{osti_1571562,
title = {Three-dimensional particle-in-cell modeling of parametric instabilities near the quarter-critical density in plasmas},
author = {Wen, H. and Maximov, A. V. and Yan, R. and Li, J. and Ren, C. and Tsung, F. S.},
abstractNote = {The nonlinear regime of laser-plasma interactions including both two-plasmon decay (TPD) and stimulated Raman scattering (SRS) instabilities has been studied in three-dimensional (3D) particle-in-cell simulations with parameters relevant to the inertial confinement fusion (ICF) experiments. SRS and TPD develop in the same region in plasmas, and the generation of fast electrons can be described accurately with only the full model including both SRS and TPD. The growth of instabilities in the linear stage is found to be in good agreement with analytical theories. In the saturation stage the low-frequency density perturbations driven by the daughter waves of the SRS side scattering can saturate the TPD and consequently inhibit the fast-electron generation. As a result, the fast-electron flux in 3D modeling is up to an order of magnitude smaller than previously reported in 2D TPD simulations, bringing it close to the results of ICF experiments.},
doi = {10.1103/PhysRevE.100.041201},
journal = {Physical Review E},
number = 4,
volume = 100,
place = {United States},
year = {2019},
month = {10}
}
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