Evaluation of the radiation shielding properties of ornamental rocks produced in Brazil: A Monte Carlo approach

William de Souza Santos; Carla de Jesus Santos; Lucio Pereira Neves; Walmir Belinato; Maria Rosângela Soares; João Vinicius Valença; Ana Paula Perini

doi:10.15392/2319-0612.2023.2104

Authors

William de Souza Santos Federal University of Uberlândia https://orcid.org/0000-0002-3828-5000
Carla de Jesus Santos Federal University of Uberlândia https://orcid.org/0000-0001-8571-4632
Lucio Pereira Neves Federal University of Uberlândia https://orcid.org/0000-0001-9152-7972
Walmir Belinato Federal Institute of Bahia (IFBA) https://orcid.org/0000-0002-6648-8622
Maria Rosângela Soares Federal University of Rondônia (UNIR) https://orcid.org/0000-0002-4614-8209
João Vinicius Valença Federal University of Health Sciences of Porto Alegre (UFCSPA) https://orcid.org/0000-0001-9091-6925
Ana Paula Perini Federal University of Uberlândia https://orcid.org/0000-0003-3398-3165

DOI:

https://doi.org/10.15392/2319-0612.2023.2104

Keywords:

Granitic rocks, Monte Carlo simulation, gamma radiation

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.

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