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High-precision measurements of the equation of state of hydrocarbons at 1-10 Mbar using laser-driven shock waves

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.3358144· OSTI ID:21371293
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  1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)
  2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

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.

OSTI ID:
21371293
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
Country of Publication:
United States
Language:
English