Stability of a Shock-Decelerated Ablation Front
Abstract
Experimental study of a shock-decelerated ablation front is reported. A planar solid plastic target is accelerated by a laser across a vacuum gap and collides with a lower-density plastic foam layer. While the target is accelerated, a fast Rayleigh-Taylor (RT) growth of the seeded single-mode perturbation at the ablation front is observed. After the collision, the velocity of the ablation front is seen to remain constant. The re-shock quenches the RT growth but does not trigger any Richtmyer-Meshkov growth at the ablation front, which is shown to be consistent with both theory and simulations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA521321
Entities
People
- A. L. Velikovich
- Andrew J. Schmitt
- E. C. Harding
- J. L. Weaver
- John H. Gardner
- Junseok Oh
- M. Karasik
- N. Metzler
- Stephen P.P. Obenschain
- Steven T.P. Zalesak
- V. Serlin
- Y. Aglitskiy
Organizations
- United States Naval Research Laboratory