Shock Hugoniot measurements of T2 TATB composition compressed to 70 GPa

We have performed laser-driven and flyer-driven shock compressions experiments on T2 TATB composition (97 wt.% TATB) to measure its Hugoniot to 70 GPa. We have used thin (~350 μm) stepped targets to account for the unsteady wave character. Photonic Doppler Velocimetry (PDV) was used to measure velocity histories (wave profiles) at the sample free surface, and a streak camera was used to determine the shock transit time through the sample. Shock velocities, U_S, were calculated from sample thicknesses and shock transit times, and particle velocities, u_P, were directly calculated from the measured free surface velocities. Our experimental data have been compared to reacted and unreacted Hugoniot models, along with existing static and dynamic high pressure measurements. These data will help to improve equation of state models for TATB and to better understand the high pressure kinetics of reaction in this insensitive high explosive.