Application of a semi-empirical model for the evaluation of transmission properties of barite mortar. (June 2015)

• Record Type: Journal Article
• Authors: Santos, Josilene C.; Tomal, Alessandra; Mariano, Leandro; Costa, Paulo R.
• Is Part Of: Applied radiation and isotopes. Volume 100(2015:Jun.)
• Page Start: 38
• Page End: 42
• Publication Date: 2015-06
• Subjects: Shielding barriers -- X-ray Spectrometry -- Solid state detector; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2015.01.007
• Languages: English
• ISSNs: 0969-8043

Abstract

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. Highlights: Barite mortar attenuation curves using X-ray spectra were calculated. Optimized thickness of protective barrier was estimated. An optimized model considers the energy spectra for protective barrier calculation.