Parameters for Validating a Spectrometric System with Itinerant NaI(Tl) in the Ativimeter’s Calibration. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 12, n. 4A (Suppl.), p. e2754, 2025. DOI: 10.15392/2319-0612.2024.2754. Disponível em: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/2754. Acesso em: 2 may. 2025.