Analysis of measurement error in the experiment of laser equation of state with impedance-match way and the Hugoniot data of Cu up to ∼2.24 TPa with high precision

Abstract

This article has reported the detailed analysis about the error in the experimental measurement of laser equation of state. A kind of matrix method to calculate the uncertainty of state parameter was put forward and applied to the error estimation in the experiment with Al-Cu impedance-match target. The shock adiabatic data of Cu with the pressure up to ∼2.24 TPa and the relative uncertainty of shock velocity of ∼2% have been also presented.