Search academic texts

Information × Registration Number 0213U005087, 0112U004996 , R & D reports Title Interaction of ionising radiation about a polymer-mineral nanocomposite materials popup.stage_title Head Voloshynovskyy Anatoliy Stepanovych, Доктор фізико-математичних наук Registration Date 20-03-2013 Organization Ivan Franko National University of Lviv popup.description2 The regularities of the radiative relaxation of the high-energy electronic excitations in nanoparticles fluorides are determined. The polymer nanocomposites based on polystyrene and embedded BaF2 nanoparticles are obtained. In the case of X-ray irradiation the intensity of the nanocomposite (weight content of BaF2 nanoparticles in polystyrene - 5%, the size of nanoparticles - 80 nm) is up to ~ 5 times higher than that for pure polystyrene scintillator. In the same time the scintillation pulse duration coincides with that for polystyrene scintillator (? < 2 ns). Increase of the light yield of polystyrene scintillator, while the temporal parameters are invariable, requires the nonradiative energy transfer from the nanoparticles to the polystyrene matrix. 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. Хапко З.А. Чорнодольський Я.М. Якібчук П.М. popup.nrat_date 2020-04-02 Close