Natural widths, lifetimes, and fluorescence yields for the double K-shell hole states of atoms with 10 ≤ Z ≤ 30

Abstract The natural widths, lifetimes, and fluorescence yields for the double K -shell hole states have been calculated for atoms with 10 ≤ Z ≤ 30. The Grasp 2018 package was adopted to carry out a systematic computation of the K h α 1 , 2 and K h β 1 , 3 radiative transition rates and Fac was used to calculate the K K − K L L , K K − K L M , and K K − K M M non-radiative Auger transition rates. The dependence of the radiative and non-radiative rates on the existence of 3 s , 3 p , 3 d , or 4 s spectator holes is studied.