High-Precision Measurements of the Equation of State of Hydrocarbons at 1-10 Mbar Using Laser-Driven Shock Waves

Other · Wed Apr 14 00:00:00 EDT 2010

OSTI ID:975100

Barrios, M A ^[1]; Hicks, D G; Boehly, T R; Fratanduono, D E; Eggert, J H; Celliers, P M; Collins, G W; Meyerhofer, D D

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1. Laboratory for Laser Energetics, University of Rochester, Rochester, NY

The equation of state (EOS) of polystyrene and polypropylene were measured using laser-driven shock waves with pressures from 1 to 10 Mbar. Precision data resulting from the use of alpha-quartz as an impedance-matching (IM) standard tightly constrains the EOS of these hydrocarbons, even with the inclusion of systematic errors inherent to IM. The temperature at these high pressures was measured, which, combined with kinematic measurements, provide a complete shock EOS. Both hydrocarbons were observed to reach similar compressions and temperatures as a function of pressure. The materials were observed to transition from transparent insulators to reflecting conductors at pressures of 1 to 2 Mbar.

• Research Organization: Laboratory for Laser Energetics, University of Rochester
• Sponsoring Organization: USDOE
• DOE Contract Number: FC52-08NA28302
• OSTI ID: 975100
• Report Number(s): DOE/NA/28302-938; 2009-87; 1919
• Country of Publication: United States
• Language: English