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Epithermal effects in positron depth profiling measurements

 

作者: D.T. Britton,   P.C. Rice-Evans,   J.H. Evans,  

 

期刊: Philosophical Magazine Letters  （Taylor Available online 1988）
卷期: Volume 57, issue 3  

页码: 165-169

 

ISSN:0950-0839

 

年代: 1988

 

DOI:10.1080/09500838808203766

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The change in annihilation line-shape for positrons implanted into a molybdenum surface with a variable-energy positron beam has been analysed in terms of a back-diffusion model. Closer agreement with the experimental data was found if account was taken of epithermal positron and positronium emission using a model of elastic scattering of positrons near the surface.

 

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