RADIATIVE AUGER EFFECT - AN EXPLANATION FOR DISCREPANCIES BETWEEN THEORETICAL AND EXPERIMENTAL K-BETA K-ALPHA X-RAY-EMISSION PROBABILITY RATIOS/

Authors
LEPY MC PLAGNARD J MOREL J
Citation
Mc. Lepy et al., RADIATIVE AUGER EFFECT - AN EXPLANATION FOR DISCREPANCIES BETWEEN THEORETICAL AND EXPERIMENTAL K-BETA K-ALPHA X-RAY-EMISSION PROBABILITY RATIOS/, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 339(1-2), 1994, pp. 241-247
Citations number
16
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
339
Issue
1-2
Year of publication
1994
Pages
241 - 247
Database
ISI
SICI code
0168-9002(1994)339:1-2<241:RAE-AE>2.0.ZU;2-B
Abstract
New effects have appeared in the field of low-energy X-ray spectrometr y as a consequence of the simultaneous improvement of detector charact eristics and mathematical codes for spectra processing. In the present study, X-ray spectra in the low-energy range are obtained with a Si(L i) spectrometer with a FWHM of 153 eV. The mathematical fitting code ( CALGARY) includes a complex function with background, peak and tailing , which takes into account the Lorentzian shape corresponding to the X -ray natural width. The fitting residuals exhibit a systematic hump in the low-energy tail of the K-beta peak: this can be attributed to the KMM radiative Auger effect. This phenomenon could explain some of the discrepancies observed between the theoretical and experimental K-bet a/K-alpha X-ray emission probability ratios.