| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8040269 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2015 | 7 Pages |
Abstract
A collision-radiation model of the cesium plasma that forms within a pitted or recessed sample in a Middleton-type sputter ion source showed that excited states of Cs formed. These excited states of neutral Cs undergo resonant electron transfer with neutral sputtered atoms of AMS samples to produce the accelerated anions. Numerous reported effects from over 30Â years are readily explained by this mechanism, including several that puzzled Middleton.
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Surfaces, Coatings and Films
Authors
John S. Vogel,