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1. A solid organic scintillator comprising a polymeric matrix in which are dispersed a first fluorophore compound and a second fluorophore compound and one or more metal methacrylics wherein the metal is selected from the group consisting of Pb and Sn,
wherein said scintillator has a weight content of said chemical elements of at least 5% by weight relative to the total weight of the scintillator, and wherein the scintillator emits an emission spectrum comprising an emission peak at a wavelength of at least 550 nm and has a scintillation decay time of less than 20 ns, wherein the first fluorophore compound is according to formula (I):wherein:R1 is a mesomeric donor group;R2 is a hydrogen atom or mesomeric donor group the same or different from R1;R3 is:
an acyl group; or a straight-chain or branched, saturated or unsaturated C1 to C20 hydrocarbon group, optionally substituted, or a cyclic saturated C3 to C10 hydrocarbon group, optionally substituted; or a saturated C3 to C10 heterocyclic group, optionally substituted; or an aryl or heteroaryl group, optionally substituted;or one of the salts thereof; and
wherein the second fluorophore compound is a perylene-diimide compound according to formula (III):wherein R4, R5, R6, R7, R8 and R9 independently of each other represent a hydrogen atom, an optionally substituted straight-chain or branched, saturated or unsaturated C1 to C20 hydrocarbon group, or an optionally substituted aryl or heteroaryl group. |
