Physics – Plasma Physics
Scientific paper
Nov 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aps..dppsfp102k&link_type=abstract
American Physical Society, Division of Plasma Physics Meeting, November 17-21, 1997, abstract #sFraP102.
Physics
Plasma Physics
Scientific paper
We are conducting experiments on the Nova laser to investigate the Rayleigh-Taylor instability in metal foils maintained in the solid state. In support of this effort, we are developing dynamic diffraction as a diagnostic of material state for shock compressed samples. We use a hohlraum x-ray drive to shock compress the samples, and x-rays from a point backlighter to measure the lattice compression by Bragg diffraction. We have shock compressed a Si crystal by more than 10% in 1-D. We are designing the experiment to probe compression in 3-D by simultaneous Bragg and Laue diffraction, (R. R. Whitlock and J. S. Wark, Phys. Rev. B 52), 8 (1995). to study the transition from elastic to plastic compression in a shocked solid. We are also working to use this diagnostic to verify that the metal foils used in the instability growth experiments remain solid at peak compression. We will present results from the shocked Si and Cu foil experiments.
Chandler E. A.
Colvin Jeffrey D.
Failor B. H.
Hauer A. A.
Kalantar Daniel H.
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