학술논문
Intensity Ratio of Kβ / Kα in Selected Elements from Mg to Cu, and the Chemical Effects of Cr Kα 1,2 Diagram Lines and Cr Kβ / Kα Intensity Ratio in Cr Compounds.
Document Type
Article
Author
Ito, Yoshiaki; Tochio, Tatsunori; Yamashita, Michiru; Fukushima, Sei; Shoji, Takashi; Słabkowska, Katarzyna; Syrocki, Łukasz; Polasik, Marek; Gomilsek, Jana Padežnik; Marques, José Pires; Sampaio, Jorge Miguel; Guerra, Mauro; Machado, Jorge; Santos, José Paulo; Hamidani, Assala; Kahoul, Abdelhalim; Indelicato, Paul; Parente, Fernando
Source
Subject
*COPPER
*CONDUCTION electrons
*X-ray spectrometers
*CHEMICAL shift (Nuclear magnetic resonance)
*X-rays
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Language
ISSN
1661-6596
Abstract
K α , β X-ray lines from photon excitation were measured in selected elements from Mg to Cu using a high-resolution double-crystal X-ray spectrometer with a proportional counter, and the K β / K α intensity ratio for each element was obtained, after correcting for self-absorption, detection efficiency, and crystal reflectance. This intensity ratio increases rapidly from Mg to Ca but, in the 3 d elements region, the increase becomes slower. This is related to the intensity of the K β line involving valence electrons. The slow increase of this ratio in the 3 d elements region is thought to be due to the correlation between 3 d and 4 s electrons. Moreover, the chemical shifts, FWHM, asymmetry indices, and K β / K α intensity ratios of the Cr compounds, due to different valences, were also investigated using the same double-crystal X-ray spectrometer. The chemical effects were clearly observed, and the K β / K α intensity ratio was found to be compound-dependent for Cr. [ABSTRACT FROM AUTHOR]