Laser-driven hydrothermal wave speed in low-Z foam of overcritical density

被引：18
|
作者：
Cipriani, M. [1 ]
Gus'kov, S. Yu [2 ]
De Angelis, R. [1 ]
Consoli, F. [1 ]
Rupasov, A. A. [2 ]
Andreoli, P. [1 ]
Cristofari, G. [1 ]
Di Giorgio, G. [1 ]
机构：
[1] ENEA, Fus & Technol Nucl Safety Dept, CR Frascati, Via E Fermi 45, I-00044 Rome, Italy
[2] Lebedev Phys Inst, Leninskii Prospect 53, Moscow 119991, Russia
来源：
PHYSICS OF PLASMAS | 2018年 / 25卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
ENERGY-TRANSPORT; PLASMA; RADIATION;
D O I：
10.1063/1.5041511
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：
The speed of the laser-supported hydrothermal wave is experimentally measured in porous polystyrene with overcritical average density. The results of the experiments are in agreement with the simulations performed with the MULTI-FM code, modeling the state of partly homogenized plasma. The measured velocity is 2 times smaller than the shock wave velocity calculated in simulations under the same conditions of laser irradiation in a homogeneous substance of the same density. The obtained results allow us to better investigate the possibility of using porous matter of overcritical density as an effective absorber-ablator in laser thermonuclear fusion targets. Published by AIP Publishing.
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页数：6
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