Laser interactions with plastic foam-metallic foil layered targets

被引:37
作者
Limpouch, J
Demchenko, NN
Gus'kov, SY
Kálal, M
Kasperczuk, A
Kondrashov, VN
Krousky, E
Masek, K
Pisarczyk, P
Pisarczyk, T
Rozanov, VB
机构
[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague 1, Czech Republic
[2] Acad Sci Czech Republ, Inst Phys, Prague 18221 8, Czech Republic
[3] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 117924, Russia
[4] Inst Plasma Phys & Laser Microfus, Warsaw, Poland
[5] Troitsk Inst Innovat & Fus Res, Troitsk 142190, Moscow Region, Russia
[6] Warsaw Univ Technol, Inst Comp Sci, Warsaw, Poland
关键词
D O I
10.1088/0741-3335/46/12/003
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
Interactions of the laser beam of iodine laser 'PALS' with low-density foam targets and acceleration of Al foils by the pressure of heated foam matter are investigated here, both experimentally and theoretically. An x-ray streak-camera was used for the evaluation of the speed of energy transfer through the porous foam material. X-ray streak records show no noticeable emission near the Al foil at the rear side of a 400 gm thick foam and. thus. Al foil is most likely accelerated without significant heating and expansion. Accelerated foil velocities. measured by three-frame optical shadowgraphy, reach up to 10(7) cm s(-1). Experimental results compare well with our two-dimensional hydrodynamics simulations and with an approximate analytical model.
引用
收藏
页码:1831 / 1841
页数:11
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