M X‐ray production cross sections for heavy elements by proton impact

Abstract

We present in this paper, M‐shell ionization cross sections and M X‐ray production cross sections calculated within the Energy loss, Coulomb deflection, Perturbed Stationary State and Relativistic effects (ECPSSR) theory for elements with 72 ≤ Z ≤ 90 for protons with 0.1–4.0 MeV energy. Our results are compared to the plane wave Born approximation (PWBA) predictions, the relativistic plane‐wave Born approximation including corrections for binding and Coulomb deflection effect (RPWBA‐BC) results and the ECPSSR calculations from earlier works. On the other hand, semiempirical and empirical M X‐ray production cross sections are deduced from the polynomial fitting of the available experimental data collected from different sources. A comparison is made between the different sets of results. The differences between the above calculations and the experimental results are pointed out and discussed. Copyright © 2009 John Wiley & Sons, Ltd.

M-shell ionization cross sections by proton impact on gold in the binary-encounter approximation

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Numerical simulation of the effects of a solar energetic particle event on the ionosphere of Mars

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“…The values of u M , necessary to the conversion ionization-production of the total M-shell cross sections are taken from Deghfel et al (2009). Then, the ratios s ECPSSR x /s ECPSSR Au are plotted in Fig.…”