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New Geant4 cross section models for PIXE simulation

Abstract : We have implemented in the Geant4 simulation toolkit a set of new ionisation cross sections for the simulation of particle induced X-ray emission (PIXE), based upon theoretical and semi-empirical models. The set provides a model based on the so-called ECPSSR theory for the computation of K-shell ionisation cross sections for proton and alpha particle impact. A second model is based upon semi-empirical expressions proposed by Orlic for the calculation of Li-subshells ionisation cross sections for proton impact. Our developments are compared to ionisation cross sections already existing in the Geant4 toolkit and to experimental data.
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Contributor : Virginie Mas Connect in order to contact the contributor
Submitted on : Monday, February 23, 2009 - 1:46:18 PM
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H. Ben Abdelouahed, S. Incerti, A. Mantero. New Geant4 cross section models for PIXE simulation. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2009, 267, pp.37-44. ⟨10.1016/j.nimb.2008.11.025⟩. ⟨in2p3-00361136⟩



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