Abstract
Dynamic high pressure equation-of-state data are reported for liquid hydrogen and deuterium. Standard high explosive techniques were used to obtain the data from single and double shock compression. The shock velocity–particle velocity data on the principal Hugoniot curves are best fit by a quadratic expression in particle velocity. Intercepts of these expressions with the shock velocity axes agree very well with the measured sound speed. Over the pressure range studied, neither liquid exhibited a transition for the principal Hugoniot curves and no abnormal behavior was observed from the double-shock data. Theoretical Hugoniot curves for these liquids were computed using an equation of state from the Sesame library. The calculations agree with the measurements to within experimental error.
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