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Memorias de investigación
Artículos en revistas:
Testing of a high-density concrete as neutron shielding material
Año:2009
Áreas de investigación
  • Ingeniería naval
Datos
Descripción
We present the testing of a high-density magnetite concrete [commercially available under the name Hormirad, developed by the Spanish company Construcciones Tecnicas de Radioterapia, S.L. (CT-RAD)] as neutron shielding material. The purpose of this work was to characterize the material behavior against neutrons, as well as to test different mixings including boron compounds in an effort to improve neutron shielding efficiency. HormiradTM slabs of different thicknesses were exposed to a 241Am-Be neutron source under controlled conditions. The original mix, which includes a high fraction of magnetite, was then modified by adding different proportions of anhydrous borax (Na2B4O7). Looking for a comparison, the same experiment was repeated with slabs of ordinary concrete (HA-25) used to shield medical accelerator facilities. In parallel to the experiments, Monte Carlo calculations were performed with MCNP5, with some differences found with regard to the experiments, attributable to uncertainties in the elemental composition of the samples tested. Tenth-value layers have been determined for the different types of concrete tested for the 241Am-Be neutron source. The results show an advantageous behavior of the Hormirad when comparing it with ordinary concrete. Although borated concretes show a small improvement in neutron attenuation when they are compared with Hormirad alone, the resulting reduction in density and structural properties makes them less practical.
Internacional
Si
JCR del ISI
Si
Título de la revista
NUCLEAR TECHNOLOGY
ISSN
0029-5450
Factor de impacto JCR
0,622
Información de impacto
Volumen
168
DOI
Número de revista
2
Desde la página
399
Hasta la página
404
Mes
NOVIEMBRE
Ranking
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Participantes
  • Autor: H.R. Vega-Carrillo (Univ. Autónoma Zacatecas)
  • Autor: Alfredo Lorente Fillol (UPM)
  • Autor: Eduardo Florentino Gallego Diaz (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ingeniería Nuclear
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