Fig. 4.

Histograms of the time-dependent radial distribution P(r/R₀) of the light ions calculated by the electrostatic model for Coulomb explosion of light-heavy (A_k^qA+B^qB+) heteroclusters, Eq. 3, with fixed times τ(ξ₀;ξ) (see text). The Inset shows the dependence of the expansion distance, r/R₀, on the initial distance, r₀/R₀, Eq. 3, for several times (in reduced units), with the vertical short lines marking the lower limit of r₀/R₀ for which light ions arrive to the same final distance from two different initial distances.