X-ray transmission through nanostructured and microstructured CuO materials

X-ray transmission through nanostructured and microstructured CuO materials

Author Botelho, M. Z. Google Scholar
Kunzel, Roseli Autor UNIFESP Google Scholar
Okuno, Emico Google Scholar
Levenhagen, Ronaldo Savarino Autor UNIFESP Google Scholar
Basegio, Tania Google Scholar
Bergmann, Carlos Pérez Google Scholar
Institution Universidade de São Paulo (USP)
Ctr Univ Franciscano
Universidade Federal de São Paulo (UNIFESP)
Univ Fed Rio Grande do Sul
Abstract This study presents a comparison of the X-ray transmission through microsized and nanosized materials. for this purpose CuO nanoparticles, with 13.4 nm average grain size, and CuO microparticles, with a mean particle size of 56 mu m, were incorporated separately to beeswax in a concentration of 5%. Results show that the transmission through the above material plates with microsized and nanosized CuO was almost the same for X-ray beams generated at 60 and 102 kV tube voltages. However, for the radiation beams generated at 26 and 30 kV tube voltages the X-rays are more attenuated by the nanostructured CuO plates by a factor of at least 14%. Results suggest that the difference in the low energy range may be due to the higher number of particles/gram in the plates designed with CuO nanoparticles and due to the grain size effect on the X-ray transmission. (C) 2010 Elsevier B.V. All rights reserved.
Keywords CuO nanoparticles
CuO microparticles
X-ray attenuation
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Grant number FAPESP: 2010/06814-4
CNPq: 307095/2008-8
Date 2011-02-01
Published in Applied Radiation and Isotopes. Oxford: Pergamon-Elsevier B.V., v. 69, n. 2, p. 527-530, 2011.
ISSN 0969-8043 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 527-530
Origin http://dx.doi.org/10.1016/j.apradiso.2010.11.002
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000287063700040
URI http://repositorio.unifesp.br/handle/11600/33365

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