Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4387
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dc.contributor.authorKajcsos, Zs.-
dc.contributor.authorLiszkay, L.-
dc.contributor.authorDuplâtre, G.-
dc.contributor.authorLázár, K.-
dc.contributor.authorLohonyai, L.-
dc.contributor.authorVarga, L.-
dc.contributor.authorGordo, P. M.-
dc.contributor.authorLima, A. P. de-
dc.contributor.authorGil, C. Lopes de-
dc.contributor.authorMarques, M. F. Ferreira-
dc.contributor.authorBosnar, D.-
dc.contributor.authorBosnar, S.-
dc.contributor.authorKosanovic, C.-
dc.contributor.authorSubotic, B.-
dc.date.accessioned2008-09-01T11:06:15Z-
dc.date.available2008-09-01T11:06:15Z-
dc.date.issued2007en_US
dc.identifier.citationRadiation Physics and Chemistry. 76:2 (2007) 231-236en_US
dc.identifier.urihttp://hdl.handle.net/10316/4387-
dc.description.abstractPositron annihilation acquired acceptance for structural investigation of solids but results in porous media--where positron lifetime spectroscopy (LT) reveals substantial Ps formation--were ambiguous. Data on zeolites lead to the conclusion that Ps trapping in competing "extended free volume" sites, inhomogeneous regions and grain boundaries occurs. Furthermore, positron trapping must also be considered. Systematic errors due to incomplete time range selection are discussed, significance and importance of corrections for 3[gamma]/2[gamma] counting efficiency differences are shown in practice.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6TVT-4JYTRSS-1/1/b6007344f10f5d0b3c23cc259fe1e8cben_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectPositron annihilation in zeolitesen_US
dc.subjectPositronium trappingen_US
dc.subjectLong-living o-Ps statesen_US
dc.titleCompetitive positron and positronium trapping in porous mediaen_US
dc.typearticleen_US
dc.identifier.doi10.1016/j.radphyschem.2006.03.041-
uc.controloAutoridadeSim-
item.languageiso639-1en-
item.fulltextCom Texto completo-
item.grantfulltextopen-
crisitem.author.deptFaculty of Pharmacy-
crisitem.author.researchunitCFisUC – Center for Physics of the University of Coimbra-
crisitem.author.orcid0000-0002-8679-8134-
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais
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