AtomicN-shell Coster - Kronig, Auger, and radiative rates and fluorescence yields for38<~Z<~103

Abstract

Calculated $N$-shell Auger and radiative transition rates, yields, and level widths for $38\le Z\le 103$ were reported. To calculate the $N_{6,7\mathrm{}}$ transition rates it was necessary to find formal expressions in $\mathrm{LS}$ coupling for the Auger transition rate with initial $f$ holes. In so doing it was found that some expressions previously given for Auger transition rates involving initial $f$ holes were in error. The corrected expressions are presented herein. Because there exist no data on $N$-shell fluorescence yields, all comparisons with experiment are comparisons of level widths obtained in most instances from x-ray linewidth measurements. For $Z\le 57$ the calculated values are in reasonable agreement with experiment. However, when the $4f$ shell begins to be filled the calculated $N$-shell level widths appear to be significantly larger than the experimental level widths. Some of the discrepancy can be attributed to the sensitivity to Auger-electron energy of the $\mathrm{}\left(4l\right)\mathrm{}-\left(4\mathrm{}{l}^{\prime }\right)\left(4f\right)\mathrm{}$ super-Coster-Kronig-process.