title: [Geometry of Marinelli type vessel in gamma-ray activity determination (author's transl)].
mesh_terms: D001417:Background Radiation; D005720:Gamma Rays; D011851:Radioactivity; D011868:Radioisotopes / Q000032:analysis*; D011874:Radiometry / Q000295:instrumentation*
chemical_list: D011868:Radioisotopes