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DOE OSTI · 1304747

Crenulation-­1 Flash Report

Rousculp, Christopher L.·Oro, David Michael·Bradley, Joseph Thomas·Griego, Jeffrey Randall·Freeman, Matthew·Reinovsky, Robert Emil·Turchi, Peter John·Reass, William Allen
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Abstract

We briefly report on the first of PHELIX driven Crenulation experiments diagnosed with proton radiography. PHELIX is a 300 kJ capacitor bank located at the LANL LANSCE pRad facility. It is capable of delivering a 4 MA, 10 us current pulse to a low inductance cylindrical load. Using a magnetically driven cylindrical liner, we have shocked a concentric tin cylindrical shell to melt-on-release and compared to theory and calculations. The inner surface of the tin cylinder has three sectors of single-mode perturbations, which are subject to Richtmyer-Meshkov Instability (RMI). Recent theoretical work on the EOS of tin has modified both the Hugoniot and the isentropes for release into various states in tabular data. The new multiphase EOS for tin, SESAME 2161, includes the beta and gamma solid phases as well as a liquid phase. It predicts a lower pressure boundary for release to pure solid (~20 GPa) and a higher pressure boundary for release to pure liquid (~35 GPa) than the existing SESAME 2160 table.

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Rousculp, Christopher L., Oro, David Michael, Bradley, Joseph Thomas, Griego, Jeffrey Randall, Freeman, Matthew, Reinovsky, Robert Emil, Turchi, Peter John, Reass, William Allen. 2016-08-11. Crenulation-­1 Flash Report. https://doi.org/10.2172/1304747

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