Recombination of H2+ molecules in channeling conditions

The transmission of H2+ molecules through thin gold foils in channeling conditions is studied, both theoretically and experimentally, in the low energy range (E < 10 keV/u). For this purpose we have performed semiclassical computer simulations of the fragment trajectories inside the target and we are able to determine if they can reconstruct at the exit surface via the recombination model. Our calculated H2+ transmission yield shows interesting oscillations as a function of the dwell time, and also the calculated exiting number of H2+ with respect to H+ shows a very good agreement with our experimental measurements. We observed transmission yields almost three orders of magnitude larger than in the case of a random target.