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Structure of the Co and FeK alpha(3,4) Satellite Spectra

Journal Article · · J. Phys. B: At., Mol. Opt. Phys.
The K{alpha}{sub 3,4} satellite spectra, originating in the [1s2p]{sup -1}{yields} [2p]{sup -2} transition, were measured with high resolution for Co and Fe, using photoexcitation by tunable monochromatized synchrotron radiation. Fits to a phenomenological sum of Voigt functions and to ab initio relativistic Dirac-Fock-calculated spectra resolved the structure underlying the spectra. The dependence of the satellites' intensity on the excitation energy yielded accurate values for the excitation thresholds. The shake-theory-based Thomas model was found to deviate from the measured intensities, indicating near-threshold major contributions from non-shake excitation processes, such as the knockout, or 'two step one,' effect.
Research Organization:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Organization:
Doe - Office Of Science
DOE Contract Number:
AC02-98CH10886
OSTI ID:
914407
Report Number(s):
BNL--78975-2007-JA
Journal Information:
J. Phys. B: At., Mol. Opt. Phys., Journal Name: J. Phys. B: At., Mol. Opt. Phys. Journal Issue: 3 Vol. 39; ISSN JPAMA4; ISSN 0022-3700
Country of Publication:
United States
Language:
English

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