Comparison between thorium and uranium fission track diameters in glass

Comparison between thorium and uranium fission track diameters in glass

Autor Moreira, P. A. F. P. Google Scholar
Iunes, P. J. Google Scholar
Guedes, S. Autor UNIFESP Google Scholar
Hadler, J. C. Google Scholar
Instituição Universidade Estadual de Campinas (UNICAMP)
Universidade Federal de São Paulo (UNIFESP)
Resumo Comparisons between diameters of uranium and thorium neutron induced fission tracks in glass made possible to test indirectly the hypothesis that observation efficiency of spontaneous U-238 and induced U-235 fission tracks may be considered the same. the sources of fission fragments were uranium and thorium thin films irradiated with neutrons with and without Cd-cover. After irradiation, the glasses were etched for 50 s by HF 24% at 15 degrees C followed by another etching for 30 s in same conditions. Diameters were measured after each chemical etching. Only tracks presenting a ratio between the longer and shorter diameters lesser than 1. 1 have been analyzed. the results indicates the hypothesis is valid. (C) 2008 Elsevier B.V. All rights reserved.
Palavra-chave observation efficiency
fission fragments
uranium
thorium
glass
Idioma Inglês
Data de publicação 2008-07-01
Publicado em Radiation Measurements. Oxford: Pergamon-Elsevier B.V., v. 43, p. S329-S333, 2008.
ISSN 1350-4487 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão S329-S333
Fonte http://dx.doi.org/10.1016/j.radmeas.2008.04.080
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000258953700071
Endereço permanente http://repositorio.unifesp.br/handle/11600/30771

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