Aerodynamic focusing of clusters into a high intensity and low divergence supersonic beamH. Vahedi Tafreshi, G. Benedek, P. Piseri, S. Vinati, E. Barborini and P. MilaniEur. Phys. J. AP, 16 2 (2001) 149-156DOI: https://doi.org/10.1051/epjap:2001204
