科技报告详细信息
Trapped-Particle Instability Leading to Bursting in Stimulated Raman Scattering Simulations | |
Brunner, S. ; Valeo, E. | |
Princeton University. Plasma Physics Laboratory. | |
关键词: 70 Plasma Physics And Fusion Technology; Raman Effect; Landau Damping; Trapped Electrons; Plasma Waves; | |
DOI : 10.2172/792582 RP-ID : PPPL-3624 RP-ID : AC02-76CH03073 RP-ID : 792582 |
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美国|英语 | |
来源: UNT Digital Library | |
【 摘 要 】
Nonlinear, kinetic simulations of Stimulated Raman Scattering (SRS) for laser-fusion-relevant conditions present a bursting behavior. Different explanations for this regime has been given in previous studies: Saturation of SRS by increased nonlinear Landau damping [K. Estabrook et al., Phys. Fluids B 1 (1989) 1282] and detuning due to the nonlinear frequency shift of the plasma wave [H.X. Vu et al., Phys. Rev. Lett. 86 (2001) 4306]. Another mechanism, also assigning a key role to the trapped electrons, is proposed here: The break-up of the plasma wave through the trapped-particle instability.
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