Thermal Emission and Reflectivity of Shocked SiO<sub>2</sub> Aerogel

ORAL

Abstract

The thermodynamic behavior of shock-compressed SiO2 was studied over a broad density and temperature range using low-density foams. Temperature and reflectance measurements were performed on single-shocked SiO2 at initial densities of 2.65 (a‑quartz), 2.2 (fused silica), 0.3 (silica aerogel), 0.2, and 0.11 g/cm3. Thermodynamic derivatives are calculated across P–T phase space using the SiO2 Hugoniot measurements combined with other experimental data sets. This work extends the capability of SiO2 as a thermodynamic calibrant for high-energy-density physics experiments.

*This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856, the University of Rochester, NSF Physics Frontier Center award PHY-2020249, and the New York State Energy Research and Development Authority.

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Publication: B. J. Henderson et al., in prep.

Presenters

  • Brian Henderson

    • University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester

Authors

  • Brian Henderson

    • University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester

  • Michelle C Marshall

    • University of Rochester

  • Gilbert Collins

    • University of Rochester
    • Laboratory for Laser Energetics, University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester

  • J. Ryan R Rygg

    • University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester

  • Linda E Hansen

    • University of Rochester
    • University of Rochester, LLE
    • Laboratory for Laser Energetics, U. of Rochester