Dependence of the desorption yield for valine on the charge state of the primary ions
- 1 January 1984
- journal article
- research article
- Published by Taylor & Francis in Radiation Effects
- Vol. 83 (1) , 121-127
- https://doi.org/10.1080/00337578408215795
Abstract
The yield for molecular ions desorbed from a valine sample has been measured as a function of the charge state of the incident fast heavy ions. The data can be interpreted in the following way: (i) the yield depends on the square of the primary ion charge, and (ii) desorption takes place not only at the sample surface but also within a layer underneath. The depth of this layer is smaller than the depth needed to achieve charge state equilibrium for the primary ions.Keywords
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