title: Simplified calculation of a barrier thickness for scattered radiation from cobalt-60.
mesh_terms: D003037:Cobalt Radioisotopes; D003252:Construction Materials; D004781:Environmental Exposure; D005720:Gamma Rays; D006801:Humans; D008962:Models, Theoretical; D011835:Radiation Protection / Q000295:instrumentation*; D011878:Radiotherapy; D012542:Scattering, Radiation; D013679:Technology, Radiologic
chemical_list: D003037:Cobalt Radioisotopes