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Fully Kinetic Fokker-Planck Model of Thermal Smoothing in Nonuniform Laser-Target Interactions
被引：7
|作者：
Keskinen, M. J.
[1
]
机构：
[1] USN, Res Lab, Div Plasma Phys, Charged Particle Phys Branch, Washington, DC 20375 USA
关键词：
STEEP TEMPERATURE-GRADIENTS;
ELECTRON HEAT-TRANSPORT;
INVERSE BREMSSTRAHLUNG;
FUSION-TARGETS;
HOT-SPOTS;
PLASMAS;
DISTRIBUTIONS;
D O I：
10.1103/PhysRevLett.103.055001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Using a fully kinetic 2D Fokker-Planck model, the generation and evolution of ion density perturbations from nonuniform laser deposition in a plasma slab have been studied. It is found that significant smoothing of the ion density perturbations from nonuniform optically smoothed single beam laser deposition can be achieved on hydrodynamic times scales over a range of scale sizes. In addition, it is observed that the Fokker-Planck model predicts more smoothing than the hydrodynamic Spitzer model.
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页数：4
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