X-ray transmission through nanostructured and microstructured CuO materials
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%....
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Brasil |
| Institución: | Universidade Federal de São Paulo (UNIFESP) |
| Repositorio: | Repositório Institucional da UNIFESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unifesp.br:11600/33365 |
| Acceso en línea: | http://dx.doi.org/10.1016/j.apradiso.2010.11.002 http://repositorio.unifesp.br/handle/11600/33365 |
| Access Level: | acceso abierto |
| Palabra clave: | CuO nanoparticles CuO microparticles X-ray attenuation |
| Sumario: | 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. |
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