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VOLUME 58 (1993) | ISSUE 3 | PAGE 202
Two-peak energy distributions of secondary ions sputtered from the surface of an aluminum single crystal
Two-peak energy distributions have been observed for the secondary-emission ions from the surface of an Al(OOl) single crystal. The mechanism shaping these distributions is discussed. A focusing of the energy of a cascade of atomic collisions in an ordered crystal lattice is taken into account. The point defects caused in the surface by ion bombardment are also taken into account.