title: Modification proposed for the AECL Theratron-80 cobalt 60 teletherapy unit.
mesh_terms: D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D006801:Humans; D010315:Particle Accelerators; D011867:Radioisotope Teletherapy / Q000295:instrumentation*
chemical_list: D003037:Cobalt Radioisotopes