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Information × Registration Number 0218U001125, 0115U000479 , R & D reports Title The mechanisms of scintillation processes in massive solids and thin film scintillation composites based on complex oxide compounds. popup.stage_title Head Grinyov Boris Viktorovich, Registration Date 28-02-2018 Organization Kharkov National University named after V.N. Karazin popup.description2 Research objects: nanocrystals and monocrystalline films of orthosilicates ReSi2O5, crystals and nanocrystals of alumoborates ReAl2.07(B4O10)O0.6, ReAl3(BO3)4, ReMgB5O10 nanocrystals, composite materials based on SiO2 matrices.Aim of the work: to study the mechanisms of the scintillation properties formation of optical materials based on oxide compounds.Methods of investigation: methods of X-ray and luminescent spectroscopy, pico- and nanosecond spectroscopy, scintillation spectrometry. In the framework of the project, nanocrystals of orthosilicates Re2SiO5 and borates ReAl2.07(B4O10)O0.6, ReAl3(BO3)4 and ReMgB5O10, as well as composite materials based on SiO2 matrices, were obtained. The liquid phase epitaxy was applied to obtain monocrystal films of Re2SiO5 orthosilicates alloyed with Ce3+ ions and Ce3+-Tb3+ ion steams. It was shown that for Lu1-xYxSiO5:Ce3+ nanocrystals there is a significant increase in the intensity of X-ray fluorescence as compared to the Lu2Si2O5:Ce3+ ones. It was established that the processes of electron excitation energy transport in ReMgB5O10 and ReAl2.07(B4O10)O0.6 nanocrystals essentially depend on the dimension of the subsystem of regular ions. The strong influence of flux impurities on the light output of monocrystalline (Lu,Y,Gd)SO:Ce orthosilicate films was established. It was shown that alloying the monocrystal orthosilicate films with both the Ce3+ and Tb3+ ions is an effective way to obtain scintillation screens with high light output. Product Description popup.authors І. І. Беспалова Б. В. Гриньов В.І. Горбенко В.В. Богданов В.В. Семінько В.Ф. Коршак Ю. І. Бойко Ю. В. Малюкін Ю.В. Зоренко popup.nrat_date 2020-04-02 Close