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

Abstract

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.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
914407
Report Number(s):
BNL-78975-2007-JA
Journal ID: ISSN 0022-3700; JPAMA4; TRN: US0802863
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Phys. B: At., Mol. Opt. Phys.; Journal Volume: 39; Journal Issue: 3
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; EXCITATION; RESOLUTION; SATELLITES; SPECTRA; SYNCHROTRON RADIATION; national synchrotron light source

Citation Formats

Daimant,R., Sharon, R., Caliebe, W., Kao, C., and Deutsch, M. Structure of the Co and FeK alpha(3,4) Satellite Spectra. United States: N. p., 2006. Web. doi:10.1088/0953-4075/39/3/018.
Daimant,R., Sharon, R., Caliebe, W., Kao, C., & Deutsch, M. Structure of the Co and FeK alpha(3,4) Satellite Spectra. United States. doi:10.1088/0953-4075/39/3/018.
Daimant,R., Sharon, R., Caliebe, W., Kao, C., and Deutsch, M. Sun . "Structure of the Co and FeK alpha(3,4) Satellite Spectra". United States. doi:10.1088/0953-4075/39/3/018.
@article{osti_914407,
title = {Structure of the Co and FeK alpha(3,4) Satellite Spectra},
author = {Daimant,R. and Sharon, R. and Caliebe, W. and Kao, C. and Deutsch, M.},
abstractNote = {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.},
doi = {10.1088/0953-4075/39/3/018},
journal = {J. Phys. B: At., Mol. Opt. Phys.},
number = 3,
volume = 39,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}