L shell x-ray production in high-Z elements using 4-6 MeV/u fluorine ions

TL;DR

This study measures L shell x-ray production cross sections in high-Z elements ionized by 4-6 MeV/u fluorine ions and compares the results with theoretical models, finding ECUSAR and ECPSSR theories agree well.

Contribution

First experimental measurement of L shell x-ray production cross sections in high-Z elements with fluorine ions at these energies and comparison with multiple theoretical models.

Findings

ECUSAR and ECPSSR theories match experimental data well.

FBA theory overestimates cross sections by a factor of two.

Multiple-hole atomic parameters align better with ECUSAR theory.

Abstract

L shell line and total x-ray production cross sections in 78Pt, 79Au, 82Pb, 83Bi, 90Th, and 92U targets ionized by 4-6 MeV/u fluorine ions were measured. These cross sections are compared with available theories for L shell ionization using single- and multiple-hole fluorescence and the Coster-Kronig yields. The ECPSSR and the ECUSAR theories exhibit good agreement with the measured data, whereas, the FBA theory overestimates them by a factor of two. Although for the F ion charge states q = 6-8 the multiple-hole atomic parameters do not significantly differ from the single-hole values, after an account for the multiple-holes, our data are better in agreement with the ECUSAR than the ECPSSR theory.