Xavier, L.R.P., Cardoso, D.D., Ferreira, F.J.D.O. and Voi, D.L. 2019. 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. Brazilian Journal of Radiation Sciences. 7, 2A (Suppl.) (Feb. 2019). DOI:https://doi.org/10.15392/bjrs.v7i2A.594.