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Information × Registration Number 0314U004041, 0113U003995 , R & D reports Title Study of the characteristics of film and bulk polymer scintillation composites containing luminescent nanoparticles popup.stage_title Дослідження характеристик плівкових та об'ємних полімерних сцинтиляційних композитів,які містять люмінесцентні наночастинки Head Voloshynovskyy Anatoliy Stepanovych, Registration Date 05-02-2014 Organization Ivan Franko National University of Lviv popup.description2 The technology of preparation of composites based on polystyrene with or-ganic impurities and inorganic luminescent nanoparticles of fluorides and phos-phates, which provides the obtaining of films with thickness of 0,01-1 mm and nanoparticle content up to 50 wt% with satisfactory uniformity of distribution of the dispersed nanoparticles and optical transparency was developed. It was estab-lished that for all types of nanoparticles BaF2, SrF2, SrF2-Ce, which were used to produce composite films except the LaPO4-Pr, the light yield do not depend on the size of the dispersed nanoparticles. It was established that the absorbed energy is transferred from small size nanoparticles to polystyrene environment without the participation of luminescent centers, only due to the electron emission from nanoparticles into polystyrene environment. The highest light yield was obtained for composites cantaining the dispersed SrF2 nanoparticles with an average size of 62 nm. It was shown that light yield of composites based on polystyrene matrix with dispersed inorganic nanoparticles can be higher than the yield of fast core-valence luminescence of BaF2 crystals Product Description popup.authors Антоняк О.Т. Вістовський В.В. Волошиновська О.І. Гамерник Р.В. Демків Т.М. Демченко П.Ю. Дулька Л.В. Пашук І.П. Перевізник О.Б. Хапко З.А. Чорнодольський Я.М. Якібчук П.М. popup.nrat_date 2020-04-02 Close