Radiation Shielding Development to Increase Radiation Safety of Cobalt-60 Irradiators J.s  (9900) big irradiator. Journal of Nuclear Technology in Applied Science, [S. l.], v. 13, n. 1, p. 1–8, 2025. DOI: 10.48165/. Disponível em: https://www.journals.acspublisher.com/index.php/jntas/article/view/20666. Acesso em: 30 may. 2025.