Direct observation of feedout-related mass oscillations in plastic targets

被引：37

作者：

Aglitskiy, Y ^{[1
]}

Velikovich, AL

Karasik, M

Serlin, V

Pawley, CJ

Schmitt, AJ

Obenschain, SP

Mostovych, AN

Gardner, JH

Metzler, N

机构：

[1] Sci Applicat Int Corp, McLean, VA 22150 USA

[2] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA

[3] USN, Res Lab, Computat Phys & Fluid Dynam Lab, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.87.265002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Feedout means the transfer of mass perturbations from the rear to the front surface of a driven target. When a planar shock wave breaks out at a rippled rear surface of the target, a lateral pressure gradient drives sonic waves in a rippled rarefaction wave propagating back to the front surface. This process redistributes mass in the volume of the target, forming the feedout-generated seed for ablative Rayleigh-Taylor (RT) instability. We report the first direct experimental observation of areal-mass oscillation associated with feedout, followed by the onset of exponential RT growth.

引用

页码：265002 / 1

页数：4

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