| abstract |
A high-speed and high-sensitivity scintillator suitable for use in PET (positron tomography) is provided using a perovskite-type organic-inorganic hybrid compound in which it is difficult to grow a thick single crystal. A certain amount of perovskite-type organic-inorganic hybrid compound is immersed in an organic solvent filled in a glass container and used as a scintillator for radiation detection. The perovskite organic-inorganic hybrid compound has a general formula R 1 —NR 2 3 ) 2 MX 4 (wherein R 1 may include a heterocyclic ring and may be substituted with a halogen atom, R 2 Is hydrogen or an alkyl group having 2 or less carbon atoms, M is a group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd, and X is a halogen atom.) And a perovskite-type organic inorganic with respect to the organic solvent The amount of the hybrid compound is 0.03 to 3.0 g / cc. [Selection figure] None |