1D simulation of the time evolution of the radius x_p, velocity v_p along the propagation axis, and temperature T_p of a single particle behind the incident and reflected shocks (T_g = 3135 K, M = 4.36) in pure Ar (P₁ = 0.2 bar) in the laboratory. Calculations have been performed for initial radius of 10, 20, 40, 60, 80 μm. For illustration, the thermalization time for the 40 μm radius particle behind the reflected shock wave is indicated (380 μs).