Adaptation and security validation of an irradiator suitable for use of cesium-137 sourcesRogério M.V. Silva, Walmir Belinato, William S. Santos, Danilo O. Junot, Luiza F. Souza and Divanízia N. SouzaEPJ Web of Conferences, 66 (2014) 10016DOI: https://doi.org/10.1051/epjconf/20146610016