Measurements of the L-shell X-ray emission of fluorine-like europium

Measurements of the L-shell X-ray emission of fluorine-like europium ions (Eu 54+ ) were made under controlled laboratory conditions on the EBIT-I electron beam ion trap at Livermore using an X-ray calorimeter, extending such measurements to the middle of the rare earth elements. Comparing the calor...

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Published inCanadian journal of physics Vol. 101; no. 9; pp. 484 - 490
Main Authors Panchenko, D, Beiersdorfer, P, Hell, N, Brown, G.V, Kelley, R.L, Kilbourne, C.A, Porter, F.S
Format Journal Article
LanguageEnglish
Published Ottawa NRC Research Press 01.09.2023
Canadian Science Publishing NRC Research Press
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Summary:Measurements of the L-shell X-ray emission of fluorine-like europium ions (Eu 54+ ) were made under controlled laboratory conditions on the EBIT-I electron beam ion trap at Livermore using an X-ray calorimeter, extending such measurements to the middle of the rare earth elements. Comparing the calorimeter spectra with atomic data from the flexible atomic code, we have identified and analyzed several prominent n = 3 → n = 2 transitions, including one two-electron, one-photon core changing transition and one electric quadrupole transition. We find that the measured energies are typically up to several eV higher than predicted.
ISSN:0008-4204
1208-6045
DOI:10.1139/cjp-2022-0041