engleski

Energy straggling induced errors in heavy-ion PIXE analysis

Numerical calculations of the heavy-ion energy straggling influence on quantitative heavy-ion PIXE analysis are presented. Heavy ion electronic straggling was calculated using semi-empirical model of Yang. Since heavy ion nuclear straggling is significant and in some cases larger than the electronic one, it has also been included into the calculations. Energy variations of K ionization cross sections were calculated using the ECPSSRmodel. Results for heavy ions are compared with those for protons, for the case of heavy element analysis in a light matrix and for the case of light element analysis in a heavy matrix. Implications on the quantitative heavy ion PIXE analysis are discussed.

Heavy-ion. Pixe. Straggling. Ecpssr. K lines

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