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Time evolution of ion states formed during the cascade decay of vacancies produced by the electron capture decay of the 125I radionuclideстатья Исследовательская статья
- Авторы: Chaynikov A.P., Kochur A.G., Dudenko A.I.
- Журнал: Journal of Electron Spectroscopy and Related Phenomena
- Том: 279
- Год издания: 2025
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 147522
- DOI: 10.1016/j.elspec.2025.147522
- Аннотация: Cascade relaxation of inner-shell vacancies in tellurium atom produced by the electron capture decay of the 125I radionuclide is studied using Monte Carlo simulations. Final cascade ions yields and mean final ion charges upon the decay of single-inner-vacancy states TeX^–15p^5 (X = 1s to 5s) were calculated. The time evolution of the cascade ion states is simulated, and the mean final ion charge is found to be stabilized within τ_casc = 10^–12 s after the electron capture decay of the 125I nucleus. This time interval must be compared to the time τneutr needed for ions neutralization when 125I is used as an Auger emitter in radiotherapy. Depending on the relation between τ_casc and τ_neutr, either ‘isolated-atom’ or ‘condensed-phase’ approximation should be used in theoretical descriptions of local energy deposition.
- Добавил в систему: Чайников Александр Павлович