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Information × Registration Number 0218U005621, 0118U001506 , R & D reports Title Influence of triplet - triplet annihilation on the ability of new types of heterogeneous organic scintillators for pulse shape discrimination. popup.stage_title Head Galunov Mykola Zaharovich, Доктор фізико-математичних наук Registration Date 29-12-2018 Organization Scientific-research department of alkali halide crystals with experimental manufacture STC "Institute for single crystals" NAS of Ukraine popup.description2 The scintillation pulse shape for the samples of organic single crystals, polycrystals and composite scintillators of anthracene, stilbene, p-terphenyl and phenantrene for different types of radiation excitation has been studied; their spectra of absorption, fluorescence, phosphorescence and delayed fluorescence have been measured. It was found that the luminescence spectra of phenatrene, p-terphenyl and stilbene are characterized by the delayed fluorescence, which is caused by the migration of triplet excitons and their subsequent annihilation. The peculiarities of the triplet-triplet annihilation on a formation of the slow component of the luminescence pulse in these systems both for the case of radiation excitation and for the case of photo excitation are studied. Product Description popup.authors Караваєва Н.Л. Тарасенко О.А. popup.nrat_date 2020-04-02 Close