Cascade reemission of energy by inner-shell-ionized iron atom

•Cascade decays of vacancies in K, L and M shells of the Fe atom are simulated.•Final ion charge spectra and the spectra of cascade electrons and photons are calculated.•Large portion of energy transferred to ionized Fe atom is reemitted via cascade relaxation.•Cascade relaxation is crucial in under...

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Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 2022-08, Vol.286, p.108200, Article 108200
Main Authors: Kochur, A.G., Chaynikov, A.P., Dudenko, A.I., Yavna, V.A.
Format: Article
Language:English
Subjects:
Cascade decay
Cascade photon and electron spectra
Energy reemission
Final ion charge spectra
Ionizing radiation effect
Iron atom
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Summary:•Cascade decays of vacancies in K, L and M shells of the Fe atom are simulated.•Final ion charge spectra and the spectra of cascade electrons and photons are calculated.•Large portion of energy transferred to ionized Fe atom is reemitted via cascade relaxation.•Cascade relaxation is crucial in understanding the effect of ionizing radiation on matter. Cascade decays of vacancies produced by single K, L and M ionization of the Fe atom are simulated by direct construction of the cascade decay trees based on Pauli–Fock branching ratios and ionic configurations energies. Final ion charge spectra and the spectra of cascade-produced electrons and photons are calculated. It is shown that a large portion of energy transferred to the Fe atom in the ionization processes is reemitted by cascade electrons and photons. This circumstance must be taken into account when describing the effect of ionizing radiation on matter or living tissues.
ISSN:0022-4073
1879-1352
DOI:10.1016/j.jqsrt.2022.108200