Shock Compression of Multiple Materials up to 120 Mbar at the National Ignition Facility*

We present shock Hugoniot data for quartz, molybdenum (Mo), boron (B), boron carbide (B$_4$C), beryllium oxide (BeO), and boron nitride (BN) at ~100 Mbar pressures, far exceeding the pressure, temperature conditions attained in previous studies on these materials. Impedance-match data were obtained relative to a diamond standard for up to 4 materials during single shots at the National Ignition Facility. Elements and compounds with similar densities (B, C, B$_4$C, BeO, and BN) were chosen to systematically test our ability to model the equation of state of both pure and mixed low-Z matter in the warm dense matter/plasma regime. New data on quartz and Mo help develop them as material standards to higher pressures than previously characterized.