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Information × Registration Number 0222U001232, 0121U113949 , R & D reports Title Luminescent properties of heterostructured materials with the ability to separate signals of ionizing radiation. popup.stage_title Head Yashchuk Valeriy M., Доктор фізико-математичних наук Registration Date 25-01-2022 Organization Taras Shevchenko National University of Kyiv popup.description2 The instantaneous and delayed radiation of tablets of stilbene and n-terphenyl polycrystals compressed into tablets with different granule sizes at room temperature and 77 K were studied. In particular, the spectra of fast fluorescence . The processes of luminescence attenuation of these samples were also studied, and the corresponding attenuation curves were obtained. The dependence of the spectra and intensities of the delayed radiation on the size of stilbene and n-terphenyl granules was studied. The dependences of the intensity of the delayed fluorescence on the intensity of the exciting light were obtained for the selected samples. The analysis of research results is carried out and the corresponding conclusions are formulated. A comparison of the results obtained under this agreement and previous agreements under the Project. It is shown that the intensity of the delayed fluorescence compressed into tablets of stilbene granules is significantly (tens of times) higher than the intensity of samples obtained using other technologies that took place during the implementation of previous contracts. This effect indicates the intensive annihilation of triplet excitons in samples of this type, which is an important factor in the selection of radioactive decay products of various types. It is recommended to use these results by developers of ionizing radiation registration systems.  Product Description popup.authors popup.nrat_date 2022-03-09 Close