Enhanced emission of secondary ions from solid surfaces bombarded with MeV polyatomic ions

MeV sputtering from CsI and organic samples induced by the polyatomic ions C n + ( n = 1–12), Ag n + ( n = 1–7), and Au n + ( n = 1–5) has been investigated. It is found that the desorption yield Y n increases more than linearly with increasing nonber n of projectile constituents. In case of the C n...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 1997-11, Vol.132 (3), p.371-376
Main Authors: Tomaschko, Ch, Herrmann, K.-H., Käshammer, J., Kügler, R., Schoppmann, Ch, Voit, H.
Format: Article
Language:English
Subjects:
MeV sputtering
Polyatomic projectiles
Surface impact
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Summary:MeV sputtering from CsI and organic samples induced by the polyatomic ions C n + ( n = 1–12), Ag n + ( n = 1–7), and Au n + ( n = 1–5) has been investigated. It is found that the desorption yield Y n increases more than linearly with increasing nonber n of projectile constituents. In case of the C n + induced desorption from a CsI sample it could be shown that the nonlinear increase of Y n reflects a linear increase of the energy density produced by the cluster projectile. This is a collective effect resulting from the simultaneous action of all n constituents of the polyatomic ion.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(97)00413-8