K-Shell Fluorescence Yield of Multiply Ionized Ne

Abstract

The $K$ fluorescence yields ${\overline{\omega }}^i$ of Ne ions with 0-6 $L$-shell vacancies (charge states $K{L}^i$) have been calculated by computing term transition rates for initial multiplet states and statistically averaging individual multiplet fluorescence yields. We find ${\overline{\omega }}^i=0.0159, 0.0176, 0.0199, 0.0248, 0.0390, 0.0862, \mathrm{and} 0.229$ for $i=0, \dots , 6$. Existing measurements are critically reviewed and found to agree with present theoretical results once proper account is taken of the ${}_{}{}^4{}_{}{}^{}P\left(K{L}^6\right)$ intensity contained in the $K{L}^5$ x-ray peak.