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

Autores

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

DOI:

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

Palavras-chave:

Granitic rocks, Monte Carlo simulation, gamma radiation

Resumo

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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