| Autor: |
S. Tan, Q. Wang, Y. Chen, W. B. Yao, C. Z. Xiao, J. F. Myatt |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Matter and Radiation at Extremes, Vol 9, Iss 5, Pp 057402-057402-9 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2468-080X |
| DOI: |
10.1063/5.0206740 |
| Popis: |
Rescattering of stimulated Raman side scattering (SRSS) is observed for the first time via two-dimensional (2D) particle-in-cell (PIC) simulations. We construct a theoretical model for the rescattering process, which can predict the region of occurrence of mth-order SRSS and estimate its threshold. The rescattering process is identified by the 2D PIC simulations under typical conditions of a direct-drive inertial confinement fusion scheme. Hot electrons produced by second-order SRSS propagate nearly perpendicular to the density gradient and gain nearly the same energy as in first-order SRSS, but there is no cascade acceleration to produce superhot electrons. Parametric studies for a wide range of ignition conditions show that SRSS and associated rescatterings are robust and important processes in inertial confinement fusion. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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