Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources

Alpha spectrometry (AS) with semiconductor detectors has applications in nuclear decay data measurements, environmental, geological and nuclear wastes studies and other works requiring determination of actinide and other alpha emitter contents. In order to obtain accurate measurements by producing g...

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Detalles Bibliográficos
Autores: DIANA CECILIA BURCIAGA VALENCIA, HILDA ESPERANZA ESPARZA PONCE, LUIS EDMUNDO FUENTES COBAS, MARIA ELENA MONTERO CABRERA
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2011
País:México
Institución:Centro de Investigación en Materiales Avanzados
Repositorio:Fuente de Objetos Científicos Open Access del CIMAV
Idioma:inglés
OAI Identifier:oai:cimav.repositorioinstitucional.mx:1004/1853
Acceso en línea:http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1853
Access Level:acceso abierto
Palabra clave:info:eu-repo/classification/Gracing incidence/Uranium
info:eu-repo/classification/X-ray absorption fine structure/X-ray diffraction
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
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spelling Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sourcesDIANA CECILIA BURCIAGA VALENCIAHILDA ESPERANZA ESPARZA PONCELUIS EDMUNDO FUENTES COBASMARIA ELENA MONTERO CABRERAinfo:eu-repo/classification/Gracing incidence/Uraniuminfo:eu-repo/classification/X-ray absorption fine structure/X-ray diffractioninfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/22info:eu-repo/classification/cti/2299info:eu-repo/classification/cti/229999info:eu-repo/classification/cti/229999Alpha spectrometry (AS) with semiconductor detectors has applications in nuclear decay data measurements, environmental, geological and nuclear wastes studies and other works requiring determination of actinide and other alpha emitter contents. In order to obtain accurate measurements by producing good resolution alpha spectra, AS sources must be thin and uniform. AS sources produced by electrodeposition consist of a radioactive deposit onto a metallic substrate (cathode of the electrolytic cell). Natural U sources prepared by the Hallstadius method have co-deposited Pt, originated from the dissolution of the anode during the electrodeposition. A recent work published elsewhere has reported a study on the morphology and spatial distribution of the U/Pt deposits with the related chemical speciation of U, using scanning electron microscopy with energy dispersive X-Ray spectroscopy, X-Ray photoelectron spectroscopy and X-Ray absorption fine structure (XAFS).The purpose of this work is to explain the structure of the Pt/U deposits. We have obtained new spectra of the U LIII edge XAFS by total electron yield at Stanford Synchrotron Radiation Lightsource (SSRL), BL 2-3. Grazing incidence X-Ray diffraction (GI-XRD) patterns were obtained at SSRL, BL 11-3. GI-XRD patterns show a bimodal distribution of grain sizes of Pt, with dimensions ~ 5 and 20 nm; schoepite diffraction signals suggest grain dimensions of ~5 nm, i.e. with low crystallization. XAFS spectra were fitted assuming two different structures: uranyl hydroxide and schoepite, and results were compared. U-U path shows low intensity that also may be a result of low crystallization.2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://cimav.repositorioinstitucional.mx/jspui/handle/1004/1853reponame:Fuente de Objetos Científicos Open Access del CIMAVinstname:Centro de Investigación en Materiales Avanzadosinstacron:CIMAVenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/about/cc0/oai:cimav.repositorioinstitucional.mx:1004/18532024-08-28T03:19:08Z
dc.title.none.fl_str_mv Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
title Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
spellingShingle Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
DIANA CECILIA BURCIAGA VALENCIA
info:eu-repo/classification/Gracing incidence/Uranium
info:eu-repo/classification/X-ray absorption fine structure/X-ray diffraction
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
title_short Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
title_full Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
title_fullStr Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
title_full_unstemmed Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
title_sort Synchrotron radiation study of the uranium chemical species electrodeposited for alpha spectrometry sources
dc.creator.none.fl_str_mv DIANA CECILIA BURCIAGA VALENCIA
HILDA ESPERANZA ESPARZA PONCE
LUIS EDMUNDO FUENTES COBAS
MARIA ELENA MONTERO CABRERA
author DIANA CECILIA BURCIAGA VALENCIA
author_facet DIANA CECILIA BURCIAGA VALENCIA
HILDA ESPERANZA ESPARZA PONCE
LUIS EDMUNDO FUENTES COBAS
MARIA ELENA MONTERO CABRERA
author_role author
author2 HILDA ESPERANZA ESPARZA PONCE
LUIS EDMUNDO FUENTES COBAS
MARIA ELENA MONTERO CABRERA
author2_role author
author
author
dc.subject.none.fl_str_mv info:eu-repo/classification/Gracing incidence/Uranium
info:eu-repo/classification/X-ray absorption fine structure/X-ray diffraction
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
topic info:eu-repo/classification/Gracing incidence/Uranium
info:eu-repo/classification/X-ray absorption fine structure/X-ray diffraction
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
description Alpha spectrometry (AS) with semiconductor detectors has applications in nuclear decay data measurements, environmental, geological and nuclear wastes studies and other works requiring determination of actinide and other alpha emitter contents. In order to obtain accurate measurements by producing good resolution alpha spectra, AS sources must be thin and uniform. AS sources produced by electrodeposition consist of a radioactive deposit onto a metallic substrate (cathode of the electrolytic cell). Natural U sources prepared by the Hallstadius method have co-deposited Pt, originated from the dissolution of the anode during the electrodeposition. A recent work published elsewhere has reported a study on the morphology and spatial distribution of the U/Pt deposits with the related chemical speciation of U, using scanning electron microscopy with energy dispersive X-Ray spectroscopy, X-Ray photoelectron spectroscopy and X-Ray absorption fine structure (XAFS).
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1853
url http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1853
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/about/cc0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/about/cc0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Fuente de Objetos Científicos Open Access del CIMAV
instname:Centro de Investigación en Materiales Avanzados
instacron:CIMAV
instname_str Centro de Investigación en Materiales Avanzados
instacron_str CIMAV
institution CIMAV
reponame_str Fuente de Objetos Científicos Open Access del CIMAV
collection Fuente de Objetos Científicos Open Access del CIMAV
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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