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Dependence of the desorption yield for valine on the charge state of the primary ions

 

作者: E. Nieschler,   B. Nees,   N. Bischof,   H. Fröhlich,   W. Tiereth,   H. Voit,  

 

期刊: Radiation Effects  （Taylor Available online 1984）
卷期: Volume 83, issue 1-2  

页码: 121-127

 

ISSN:0033-7579

 

年代: 1984

 

DOI:10.1080/00337578408215795

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

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.

 

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