Title
Variation of **K** X-ray fluorescence cross-sections of Cu, Y and Ba in <tex>$YBa_{2}Cu_{3}O_{7-\delta}$</tex> superconductor
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Solid state communications. - New York, N.Y.
Volume/pages
149(2009) :5/6 , p. 231-235
ISSN
0038-1098
ISI
000262795900013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
K X-ray fluorescence cross-sections of Cu, Y and Ba elements were measured in CuO, Y(2)O(3), BaCO(3) Compounds and YBa(2)Cu(3)O(7-delta) superconductor samples (nonreacted agent, calcined and sintered states). A superconductor sample of YBa(2)Cu(3)O(7-delta) was prepared by using a solid-state reaction technique. The samples were excited by gamma rays of energy 59.5 keV from a (241)Am radioisotope source. The Cu, Y and Ba K X-ray intensities counted with a Si(Li) detector were measured in different solid-state conditions. The obtained values of K X-ray fluorescence cross-section were compared with the theoretical values of pure Cu, Y and Ba elements. We found that the K X-ray fluorescence cross-section of Cu, Y and Ba in YBa(2)Cu(3)O(7-delta) sample is changed in different solid-state conditions, depending on the mixture (nonreacted agent), calcined and sintered states. (c) 2008 Elsevier Ltd. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/f24c48/7ef1397.pdf
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