Physics – Plasma Physics
Scientific paper
Nov 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aps..dpp..6s17g&link_type=abstract
American Physical Society, Division of Plasma Physics Meeting, November 10-15, 1996, abstract #6S.17
Physics
Plasma Physics
Scientific paper
We have started experiments using the Nova laser to investigate the effects of convergence on single-mode perturbation growth due to the Rayleigh-Taylor (RT) instability on targets ablatively accelerated with an x-ray drive. In back-to-back experiments, planar CH(Br) foils and hemispherical CH(Ge) capsules are mounted on the wall of a standard Nova hohlraum, so that they see identical x-ray drive histories. Each target had identical initial perturbations, either a 2D λ=70 μm sinusoidal ripple, or a 3D k_x=k_y(l_x=l_y=100 μm) pattern. The effects of convergence in the hemispherically imploding target should cause the density at the ablation front to remain steep and the effective wavelength of the perturbation to decrease, each of which will affect the overall RT evolution. Initial results of the experiments and modeling will be presented.
Galmiche D.
Glendinning Gail S.
Haan Steven W.
Hsing Warren W.
Kalantar Daniel H.
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