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Modeling of iron K lines: radiative and Auger decay data for Fe II-Fe IX

P. Palmeri·C. Mendoza·T. R. Kallman·M. A. Bautista·M. Melendez
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Abstract

A detailed analysis of the radiative and Auger de-excitation channels of K-shell vacancy states in Fe II-Fe IX has been carried out. Level energies, wavelengths, A-values, Auger rates and fluorescence yields have been calculated for the lowest fine-structure levels populated by photoionization of the ground state of the parent ion. Different branching ratios, namely K-alpha_2/K-alpha_1, K-beta/K-alpha, KLM/KLL, KMM/KLL, and the total K-shell fluorescence yields, omega_K, obtained in the present work have been compared with other theoretical data and solid-state measurements, finding good general agreement with the latter. The K-alpha_2/K-alpha_1 ratio is found to be sensitive to the excitation mechanism. From these comparisons it has been possible to estimate an accuracy of ~10% for the present transition probabilities.

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P. Palmeri, C. Mendoza, T. R. Kallman, M. A. Bautista, M. Melendez. 2003-06-18. Modeling of iron K lines: radiative and Auger decay data for Fe II-Fe IX. https://doi.org/10.1051/0004-6361%3A20031262

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