K-shell ionization during the α-decay of superheavy nuclei

Abstract

The probabilities of K-shell ionization in daughter atoms during the α-decay of extensively studied ₈₄Po isotopes and superheavy ₁₁₇²⁹⁴Ts, ₁₁₃²⁸⁶Nh, ₁₀₉²⁷⁸Mt, ₁₀₅²⁷⁰Db, ₁₀₂²⁵³No, ₁₀₀²⁴⁹Fm, and ₁₁₁²⁷²Rg nuclei are calculated. Monopole and dipole terms are considered. More accurate expressions for α-particle tunneling through the atomic Coulomb barrier are derived. The electron wave functions are calculated using the relativistic Dirac–Fock method. The results are essential for processing the spectra analyzed in combined α-, γ-, and conversion-electron spectroscopy.