Author:
Santos W. S.,Santos C. J.,Neves L. P.,Belinato W.,Soares M. R.,Valença J. V. B.,Perini A. P.
Abstract
In this work, the Monte Carlo MCNPX (2.7.0) code was used to evaluate the radioprotective properties of ten ornamental granitic samples produced in Brazil. For each sample of granite, the mass attenuation coefficient (µ/ρ) and half-value layer (HVL) were evaluated using the photon energy emitted by the following radioisotopes: 241Am (59,5 keV), 133Ba (356 keV), 137Cs (662 keV), 60Co (1250 keV), and 22Na (1274 keV). The MCNPX results showed agreement with the values obtained by using the XCOM database, as well as with theoretical and experimental results, available on the literature. The computational model built in this work can be used by the scientific community interested in parameters involving new materials for gamma radiation shielding, which has been used in different areas of the nuclear sciences.
Publisher
Sociedade Brasilieira de Protecao Radiologica - SBPR
Reference22 articles.
1. TEKIN, H. O.; ERGUZEL, T. T.; SAYYED, M. I.; SINGH, V. P.; MANICI, T.; ALTUNSOY, E. E.; AGAR, O. An Investigation on shielding properties of different granite samples using MCNPX code. Dig J Nanomater Biostructures, 13, 381-389, 2018.
2. TEKIN, H. O.; SINGH, V. P.; MANICI, T.; ALTUNSOY, E. E. Validation of MCNPX with ex-perimental results of mass attenuation coefficients for cement, gypsum and mixture. J Radiat Prot Res, 42, 154 – 157, 2017.doi: 10.14407/jrpr.2017.42.3.154.
3. AKKURT, I.; AKYILDIRIM, H.; MAVI, B.; KILINCARSLAN, S.; BASYIGT, C. Photon atten-uation coefficients of concrete includes barite in different rate. Ann Nucl Energy 37, 910–914, 2010. doi:10.1016/j.anucene. 2010.04.001.
4. BOUZARJOMEHRI, F.; BAYAT, T.; DASHTI, M. H.; GHISARI, J.; ABDOLI, N. 60Co γ -ray attenuation coefficient of barite concrete. Iran Radiat Res. 4, 71–75, 2006.
5. PICHA, R.; CHANNUIE, J.; KHAWEERAT, S.; LIAMSUWAN, T.; PROMPING, J.; RATANATONGCHAI, W.; SILVA, K.; WONGLEE, S. Gamma and neutron attenuation properties of barite-cement mixture. J Phys Conf Ser. 611, 1–7, 2015. doi:10.1088/1742-6596/611/1/012002