Effective density and mass attenuation coefficient for building material in Brazil Salinas I. C. P. auteur aut IRD Conti C. C. auteur aut IRD Lopes R. T. auteur aut IRD text journalArticle eng text/pdf born digital access This paper presents values for density and mass attenuation coefficient of building materials commonly used in Brazil. Transmission measurements were performed to provide input information for simulations with MCNP4B code. The structure for the clay bricks was simulated as a mix of all material layers and an effective density determined. The mass attenuation coefficients were determined for the 50-3000 keV gamma-ray energy range. A comparison with results for similar materials found in the literature showed good agreement. (c) 2005 Elsevier Ltd. All rights reserved. specialized 020 Applied Radiation and Isotopes 64 1 13-18 2006 0969-8043 https://www.documentation.ird.fr/hor/fdi:010051881 10.1016/j.apradiso.2005.07.003 0969-8043 [F B010051881] https://www.documentation.ird.fr/hor/fdi:010051881 https://www.documentation.ird.fr/intranet/publi/depot/2011-06-01/010051881.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2006-03-30 2017-08-23 fdi:010051881 fre