title: Influence of source configuration on spectral composition of gamma-ray beams from 60Co teletherapy units.
mesh_terms: D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D005720:Gamma Rays; D008670:Metals; D011867:Radioisotope Teletherapy / Q000295:instrumentation*; D012542:Scattering, Radiation
chemical_list: D003037:Cobalt Radioisotopes; D008670:Metals