title: Attenuation in Lipowitz's metal of x rays produced at 2, 4, 10, and 18 MV and gamma rays from cobalt-60.
abstract: Attenuation in Lipowitz's metal of x rays produced at 2, 4, 10, and 18 MV and gamma rays from cobalt 60 were measured to the 1% level with a narrow beam geometry. Blocks made from standard styrofoam mold (7.6 cm thick) would reduce these primary beams by 95% to 99%.
mesh_terms: D000497:Alloys; D001729:Bismuth; D003037:Cobalt Radioisotopes; D005720:Gamma Rays; D007854:Lead; D011835:Radiation Protection; D011874:Radiometry; D013679:Technology, Radiologic
chemical_list: D000497:Alloys; D003037:Cobalt Radioisotopes; D007854:Lead; D001729:Bismuth