Proposal for a radiation shielding study aiming the implantation of neutrons beam shutter in the J-9 radiation channel of the Argonauta reactor of the Nuclear Engineering Institute. Braz. J. Radiat. Sci. [Internet]. 19 de febrero de 2019 [citado 17 de julio de 2025];7(2A (Suppl.). Disponible en: https://bjrs.org.br/revista/index.php/REVISTA/article/view/594