Measuring the implantation depth of silver clusters in graphite D. J. Kenny, S. C. Weller, M. Couillard, R. E. Palmer, C. F. Sanz-Navarro and R. Smith Eur. Phys. J. D, 16 1-3 (2001) 115-118 Published online: 15 September 2001 DOI: 10.1007/s100530170073