Shock impedance matching experiments in foam-solid targets: implications for 'foam-buffered ICF'

被引:18
作者
Batani, D
Benuzzi, A
Koenig, M
Faral, B
Temporal, M
Nazarov, W
Hall, T
Granjouan, N
机构
[1] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[2] INFM, I-20133 Milan, Italy
[3] Univ Paris 06, Ecole Polytech, Lab Utilisat Lasers Intenses, CNRS,Unite Mixte,CEA, F-91128 Palaiseau, France
[4] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Padua, Italy
[5] Univ Dundee, Dept Chem, Dundee DD1 4HN, Scotland
[6] Univ Essex, Dept Phys, Colchester CO4 3SQ, Essex, England
[7] Ecole Polytech, CNRS, LPMI, F-91128 Palaiseau, France
关键词
D O I
10.1088/0741-3335/40/9/001
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 influence of foams on laser-produced shocks has been studied experimentally using sub-ns laser pulses smoothed with phase zone plates and focused on layered foam-aluminium targets. A strong pressure increase was measured when the foam was present in comparison with that obtained by focusing the beam directly onto the aluminium target, due to impedance mismatch at the aluminium-foam interface. Results are compared with computer simulations. The impact of these measurements on the possible use of 'foam-buffered targets' for direct-drive inertial confinement fusion is briefly discussed.
引用
收藏
页码:1567 / 1574
页数:8
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