Major developments both in theory and in experiments on ion sputtering have been summarized with the emphasis on preferential sputtering of alloy arising from mass differences
surface binding energy differences and bombardment-induced Gibbsian segregation. The ion sputtering of the first wall in Tokamaks
heavy ion sputtering of biomolecular materials and cluster sputtering on solid surfaces are discussed briefly. In addition
it is indicated that cluster impact processes are of some practical interest because they have the potential of depositing large amounts of translational energy in very thin surface layers with very large sputtering yeild. Some possible applications of cluster sputtering include altering surface structures and developing techniques for SIMS and microbeam analysis.
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