Double-ionization satellites in the x-ray emission spectrum of Ni metal
Journal Article
·
· Physical Review A
- Univ. of Washington, Seattle, WA (United States); DOE/OSTI
- Univ. of Washington, Seattle, WA (United States)
We report measurements of the nonresonant x-ray emission spectroscopy (XES) from Ni metal in an energy range spanning the Kβ diagram line, valence-to-core emission, and double-ionization (DI) satellites that appear beyond the single-particle Fermi level. We make special use of a laboratory-based x-ray spectrometer capable of both x-ray emission and x-ray absorption measurements to accurately align the XES and x-ray absorption spectra to a common energy scale. The careful alignment of energy scales is requisite for correction of the strong sample absorption of DI fluorescence above the Ni K-edge energy. The successful correction of absorption effects allows a determination of the branching ratios for the [1s3d], [1s3p] , [1s2p] and [1s2s] satellites with respect to their corresponding diagram lines. We compare our results with other work, finding good agreement with prior experiments and with theoretical calculations in the multiconfiguration Dirac-Fock framework.
- Research Organization:
- Univ. of Washington, Seattle, WA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- Grant/Contract Number:
- FG02-97ER45623; SC0002194; SC0016251
- OSTI ID:
- 1535754
- Alternate ID(s):
- OSTI ID: 1378411
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 3 Vol. 96; ISSN PLRAAN; ISSN 2469-9926
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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