Investigation of polymer-based BaO and rGO nanocomposites for application in low energy X ray attenuation. Braz. J. Radiat. Sci. [Internet]. 25 de junio de 2019 [citado 20 de julio de 2025];7(2B (Suppl.). Disponible en: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/431