Ion acceleration using high-contrast ultra-intense lasers J. Fuchs, P. Antici, E. d'Humières, E. Lefebvre, M. Borghesi, E. Brambrink, C. Cecchetti, T. Toncian, H. Pépin and P. Audebert J. Phys. IV France, 133 (2006) 1151-1153 Published online: 16 June 2006 DOI: 10.1051/jp4:2006133235