Barbosa, C.M., Raitz, C., Dam, R.S. de F., Salgado, W.L., Salgado, C.M. and Braz, D. 2021. USE OF MONTE CARLO SIMULATIONS FOR OPTIMAL GEOMETRY STUDY IN CALCULATION OF ATTENUATION COEFFICIENT FOR ELEMENT, COMPOUND AND MIXTURE. Brazilian Journal of Radiation Sciences. 9, 1A (Apr. 2021). DOI:https://doi.org/10.15392/bjrs.v9i1A.1568.