Relativistic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>K</mml:mi></mml:math>-shell Auger rates, level widths, and fluorescence yields

Abstract

Systematic relativistic (Dirac-Hartree-Slater) calculations of atomic $K$-shell Auger transition probabilities are reported for 25 elements with $18\ensuremath{\le}Z\ensuremath{\le}96$. $K$-level Auger widths are found to be enhanced by relativistic effects, while total $K$-level widths are reduced. Relativistic theoretical $K$-shell fluorescence yields are in excellent agreement with experiment. Theoretical relative intensities of $K\ensuremath{-}LX$ Auger transitions in heavy elements, calculated in $j\ensuremath{-}j$ coupling, agree well with measurements; for low $Z$, configuration interaction and intermediate coupling must apparently be included.