title: Depth dose data for 4 MeV linear accelerators with lead or uranium field flatteners.
abstract: Per cent depth dose data for a few selected depths for 4 MV roentgen rays from Varian Clinac-4 linear accelerators equipped with lead or uranium field flatteners are presented and compared with published data. A difference by as much as 12 per cent was found.
mesh_terms: D007854:Lead; D010315:Particle Accelerators; D011829:Radiation Dosage; D011878:Radiotherapy; D014501:Uranium
chemical_list: D007854:Lead; D014501:Uranium