Diagnostics of fast processes in laser plasmas after the irradiation of low-density media in the Mishen facility

被引：8
|
作者：
Bugrov, AÉ [1 ]
Burdonskii, IN [1 ]
Gavrilov, VV [1 ]
Gol'tsov, AY [1 ]
Dedova, OL [1 ]
Zhuzhukalo, EV [1 ]
Koval'skii, NG [1 ]
Kondrashov, VN [1 ]
Pergament, MI [1 ]
Petryakov, VM [1 ]
Fasakhov, IK [1 ]
Yankovskii, GM [1 ]
机构：
[1] Troitsk Inst Innovat & Fus Res, Troitsk 142190, Moscow Oblast, Russia
来源：
PLASMA PHYSICS REPORTS | 2004年 / 30卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/1.1648939
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
New experimental data on the laser irradiation of low-density porous materials in the Mishen facility are presented and discussed. A wide set of optical and X-ray diagnostics was used to analyze the physical processes in porous media with different microstructures and specific densities of 1-30 mg/cm(3) exposed to laser pulses with lambda = 1.054 mum, tau = 3 ns, and I = 10(13)-10(14) W/cm(2). The features of laser absorption and scattering and the processes of energy transfer in porous media were investigated for different average densities, thicknesses, and microstructures of the targets and different incidence angles of the laser beam. It was found that the material microstructure (chaotic or quasi-ordered) significantly affected the formation and dynamics of a plasma produced inside the irradiated samples that model the components of the advanced targets used in inertial confinement fusion research. (C) 2004 MAIK "Nauka/Interperiodica".
引用
收藏
页码：143 / 148
页数：6
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