Calculation of scale thickness in oil pipelines using transmission gamma. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 8, n. 3B (Suppl.), 2021. DOI: 10.15392/bjrs.v8i3B.412. Disponível em: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/412. Acesso em: 15 jun. 2025.