Application of a semi-empirical model for the evaluation of transmission properties of barite mortar

Author(s)

Santos, Josilene C. ^[1] ; Tomal, Alessandra ^[2] ; Mariano, Leandro ^[1] ; Costa, Paulo R. ^[1]

Affiliation

^[1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil

^[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

• Document type: Journal article
• Source: Applied Radiation and Isotopes; v. 100, p. 38-42, JUN 2015.
• Web of Science Citations: 1

Abstract

The aim of this study was to estimate barite mortar attenuation curves using X-ray spectra weighted by a workload distribution. A semi-empirical model was used for the evaluation of transmission properties of this material. Since ambient dose equivalent, H{*}(10), is the radiation quantity adopted by IAEA for dose assessment, the variation of the H{*}(10) as a function of barite mortar thickness was calculated using primary experimental spectra. A CdTe detector was used for the measurement of these spectra. The resulting spectra were adopted for estimating the optimized thickness of protective barrier needed for shielding an area in an X-ray imaging facility. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 11/04721-9 - Experimental approach for the relation between air-kerma and ambient equivalent dose for shielding calculation of primary barriers of X-ray imaging facilities
• Grantee: Josilene Cerqueira Santos
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 10/12237-7 - Experimento evaluation of the relation between air-Kerma and ambient equivalent dose for shielding calculation in adult and pediatric X-ray rooms
• Grantee: Paulo Roberto Costa
• Support Opportunities: Regular Research Grants