title: GAMMA-RAY EXCITED X-RAY SOURCES.
mesh_terms: D005453:Fluorescence; D005720:Gamma Rays; D011827:Radiation; D011868:Radioisotopes; D012106:Research; D014965:X-Rays
chemical_list: D011868:Radioisotopes
keywords: EXPERIMENTAL LAB STUDY; FLUORESCENCE; RADIATION; RADIOISOTOPES