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Information × Registration Number 0221U103542, 0116U006450 , R & D reports Title Research of structure of atomic nucleus and use of nuclear-physical methods in a science and the technology popup.stage_title Head Dykyi Mykola P., Registration Date 22-02-2021 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2 The effect of radiation exposure on the properties of nanoparticles of metal oxides Fe2O3, ZnO, ZrO2 using nuclear reactions 54Fe(g,n)53Fe, 68Zn(g,p)67Cu, 90Zr(g,n)89Zr and 96Zr(g,n)95Zr and also on the mineral compounds KMgPO4 and clinoptilolite at the linac NSC KIPT for their further use as sorption materials and matrices for the disposal of radionuclides were studied. Analysis of the measured g-spectra using a Ge(Li)-detector shows that all samples are practically free of impurity elements. The results of X-ray diffractometry and IR spectrometry indicate that samples of metal nano oxides and nanoparticles of KMgPO4 and clinoptilolite after exposure to ionizing radiation practically do not experience changes in their phase state and retain their original crystal structure. Irradiation of nanoparticles of gamma-hematite Fe2O3 practically does not change their sorption characteristics of 90Sr, 235.238U, 232Th, 241Am in tap water. Irradiated samples of KMgPO4 6H2O have a higher radiation resistance relative to radiocesium. The combination of irradiation with the nanoscale of the clinoptilolite sample results in a 1.5-fold decrease in the 132Cs sorption time. A similar trend was recorded during the sorption of 90Sr.  Product Description popup.authors Kachan Oleksandr S Medvedev Dmytro V Medvedeva Olena P Skakun Evgen O popup.nrat_date 2021-02-22 Close