Radiation detection device

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 11/00 (2006.01) C09K 11/06 (2006.01) C09K 11/08 (2006.01) G01T 1/20 (2006.01) G01T 1/202 (2006.01)

Patent

CA 2398843

This invention relates to a radiation detection device for detecting ionizing beam discharges such as gamma rays, x-rays, electron beams, charged particle beams and neutral particle beams. Specifically, it relates to a radiation detection device which can measure radiations which exist for a very short time (of the order of subnanoseconds or less) from the appearance of photoemission to extinction. It is an object of this invention to provide a radiation detection device using a perovskite organic--inorganic hybrid compound as a scintillator, the formula of this compound being (R1-NR11 3)2MX4 or (R2=NR12 2)2MX4, or alternatively, (NR13 3-R3-NR13 3)MX4 or (NR14 2=R4=NR14 2)MX4 (in the formula, R1 is a monovalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R2 is a divalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, and may be cyclic, R3 is a divalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R4 is a tetravalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R11-R14 may be identical or different, and may be hydrogen atoms or alkyl groups having two or more atoms, M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd, and X is a halogen atom). This radiation detection device can quantify the radiation amount of the detected radiation.

L'invention concerne un détecteur de rayonnement qui utilise comme scintillateur un composé hybride inorganique/organique de type pérovskite représenté par les formules (R?1¿-NR?11¿¿3?)¿2?MX¿4?, (R?2¿=NR?12¿¿2?)¿2?MX¿4?, (NR?13¿¿3?-R?3¿-NR?13¿¿3?)MX¿4? ou (NR?14¿¿2?=R?4¿=NR?14¿¿2?)MX¿4? (dans lesquelles R?1¿ représente un groupe hydrocarboné monovalent qui peut contenir un hétérocycle et être substitué par un ou plusieurs atomes d'halogène ; R?2¿ représente un groupe hydrocarboné divalent qui peut contenir un hétérocycle, être substitué par un ou plusieurs atomes d'halogène et être cyclique ; R?3¿ représente un groupe hydrocarboné divalent qui peut contenir un hétérocycle et être substitué par un ou plusieurs atomes d'halogène ; R?4¿ représente un groupe hydrocarboné tétravalent qui peut contenir un hétérocycle, être substitué par un ou plusieurs atomes d'halogène et être cyclique ; R?11¿ et R?14¿ peuvent être identiques ou différents, et chacun représente hydrogène ou alkyle inférieur ou C¿2? ; M représente un métal du groupe IVa, europium, cadmium, cuivre, fer, manganèse ou palladium ; et X représente halogéno).

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