Analysis of data from shockless compression experiments to multi-megabar pressure

Quasi-isentropic, shockless ramp-wave experiments promise accurate equation-of-state (EOS) data in the solid phase at relatively low temperatures and multi-megabar pressures. In this range of pressure, isothermal diamond-anvil techniques have limited pressure accuracy due to reliance on theoretical EOS of calibration standards, thus accurate quasi-isentropic compression data would help immensely in constraining EOS models. Multi-megabar shockless compression experiments using the Z Machine at Sandia as a magnetic drive with stripline targets have been performed on a number of solids. New developments will be presented in the analysis of data from these experiments using the single-sample inverse Lagrangian approach, including topics such as 2-D and magneto-hydrodynamic (MHD) effects and uncertainty quantification. Results will be presented for selected metals, with comparisons to independently developed EOS.