Experimental determination of theL2−L3XCoster-Kronig transition probability in europium, plutonium, and curium

Abstract

The $L_2-L_{3}X$ Coster-Kronig transition probability for $Z=63, 94, \mathrm{and} 96$ has been measured by the $L$-x-ray—$K$-x-ray coincidence technique. The value measured in ${}_{63}{}^{}{}_{}{}^{}\mathrm{Eu}$ was corrected for the presence of an unresolved $L\eta$ x-ray component in the $L\alpha$ x-ray group. The values reported are for ${}_{63}{}^{}{}_{}{}^{}\mathrm{Eu}$, $f_{23}=0.172\mathrm{}\pm 0.015$, for ${}_{94}{}^{}{}_{}{}^{}\mathrm{Pu}$, $f_{23}=0.233\mathrm{}\pm 0.015$, and for ${}_{96}{}^{}{}_{}{}^{}\mathrm{Cm}$, $f_{23}=0.226\mathrm{}\pm 0.017$.