ATOMIC-LEVEL WIDTHS FOR X-RAY SPECTROMETRY

A self-consistent set of level widths for the K-N7 subshells is assemb led using literature experimental data from a variety of spectroscopic methods, In cases where Coster-Kronig processes contribute significan tly, the widths differ from the predictions of the atomic single-parti cle model; in the restricted regions where atomic many-body prediction s are available, the agreement is much better, The assembled widths wi ll be useful to Si(Li) spectroscopists who wish to include natural wid th in the description of spectrometer lineshape; such inclusion will i mprove accuracy in both fundamental and analytical work. The present d atabase is also of value in identifying where improvements to the curr ently incomplete knowledge of natural widths are most critical.