title: Uniformity of high-energy electron-beam calibrations.
mesh_terms: D003036:Cobalt Isotopes; D004583:Electrons; D008433:Mathematics; D011137:Polystyrenes; D011874:Radiometry / Q000295:instrumentation / Q000592:standards*; D011882:Radiotherapy, High-Energy; D013053:Spectrophotometry / Q000295:instrumentation; D014481:United States
chemical_list: D003036:Cobalt Isotopes; D011137:Polystyrenes