Patent ID: 7087904
Filing Date: 2006-08-08
Classification: C09K

Abstract:
1. A positron emission tomography device comprising a γ-ray detector consisting of a scintillator and a light-receiving device, wherein said scintillator is a perovskite organic/inorganic hybrid compound selected from the group represented by the general formulae: (R 1 —NR 11 3 ) 2 MX 4 or (R 2 —NR 12 ) 2 MX 4 , (NR 13 3 —R 3 —NR 13 3 )MX 4 or (NR 14 2 ═R 4 ═NR 14 2 )MX 4 , or AMX 3 wherein, R 1 is a monovalent hydrocarbon group which may include a heterocyclic ring, and may be substituted by a halogen atom, R 2 is a divalent hydrocarbon group which may contain a heterocyclic ring, may be substituted by a halogen atom and may be cyclic, R 3 is a divalent hydrocarbon group which may contain a heterocylic ring and may be substituted by a halogen atom, R 4 is a tetravalent hydrocarbon group which may contain a heterocyclic ring, may be substituted by a halogen atom and may be cyclic, A represents R 5 —NH 3 , R 6 ═NH 2 or a mixture thereof, R 5 is a hydrogen atom or a methyl group which may be substituted by an amino group or halogen atom, R 6 is a methylene group which may be substituted by an amino group or halogen atom, each R 11 , R 12 , R 13 and R 14 group is hydrogen or an alkyl group having two or fewer carbon atoms, and may be the same as or different from each other such group in the organic/inorganic hybrid compound, M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd, and each X is a halogen that may be the same or different than the other X groups in the organic/inorganic hybrid compound.