Shock generation comparison with planar and hemispherical targets in shock ignition relevant experiment

被引：8
|
作者：
Baton, S. D. [1 ,2 ]
Le Bel, E. [3 ]
Brygoo, S. [4 ]
Ribeyre, X. [3 ]
Rousseaux, C. [4 ]
Breil, J. [3 ]
Koenig, M. [1 ,2 ]
Batani, D. [3 ]
Raffestin, D. [5 ]
机构：
[1] Univ Paris Saclay, CEA, CNRS, Ecole Polytech,LULI, F-91128 Palaiseau, France
[2] UPMC Univ Paris 06, Sorbonne Univ, CNRS, LULI, Pl Jussieu, F-75252 Paris 05, France
[3] Univ Bordeaux, CNRS, CEA, Ctr Lasers Intenses & Applicat CELIA, F-33405 Talence, France
[4] CEA, DAM, DIF, F-91297 Arpajon, France
[5] CEA, DAM, CESTA, F-33114 Le Barp, France
来源：
PHYSICS OF PLASMAS | 2017年 / 24卷 / 09期
关键词：
INERTIAL CONFINEMENT FUSION; DRIVE;
D O I：
10.1063/1.4989525
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：
We performed an experiment on the "Ligne d'Integration Laser" facility to produce strong shocks with plasma conditions relevant for the Shock Ignition approach to Inertial Confinement Fusion. Two kinds of targets have been used: planar and hemispherical. We observe an increase in the shock velocity in hemispherical geometry, which entails a fairly planar shock despite the Gaussian focal spot. Numerical results reproduce the shock dynamics in the two cases in a successful way, indicating, for laser intensities around 1.5 x 10(15) W/cm(2) at 3 omega, an ablation pressure of (90620) Mbar and (120+/-20) Mbar in planar and hemispherical geometry, respectively. Published by AIP Publishing.
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页数：6
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