Article ID Journal Published Year Pages File Type
1682721 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2009 4 Pages PDF
Abstract
In this work, we present double differential ion emission yields measured by the method of fragment ion spectroscopy for collisions of N6+ and O7+ ions with water and methane molecules at ∼30 keV impact energies. The angular distribution of the fragment ions shows expected post-collision and nucleus-nucleus binary collision effects with the indication of an interplay between Coulomb explosion and binary collision mechanisms. We have found significant differences in the fragmentation patterns of methane for the two projectiles, which may be a signature of strong, resonant capture channels. For triple capture, an unexpected angular distribution has been found for water, which may be attributed to orientation sensitivity of some of the capture channels. Such processes can be highly important for radiation therapy and astrophysics.
Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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