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Information × Registration Number 0305U003282, 0103U004186 , R & D reports Title Nuclear physics methods of solving the problem of burial of radioactive wastes and microanalysis of biological objects popup.stage_title Вивчення впливу зовнішніх факторів на трансформацію гірських порід Українського кристалічного щита Head Duplij S.A.; Fedorets I.D., Registration Date 04-03-2005 Organization Kharkov national university named after V.N. Karazin popup.description2 The results of studying the migration of cerium as actinide-simulator in granite and tuff speciments in pristine state and preliminary irradiated with various g-irradiation dose up to 107 Gy are represented. Estimation based on analysis of cerium bulk distribution are given to determine the diffusion coefficients of cerium in granite and tuff. The diffusion iodine and cerium was investigated in glassceramic matrices which received in gasostat. For activation of iodine and cerium isotopes the brake radiation from electrons of the linear accelerator was used. The low background nuclear physics techniques was for measure age geologic samples of micas (biotite, lepidolite, muscovite, phlogopite) by means of detection a gamma radiation from radioisotopes. The nuclear reactions 87Sr(g,gў)87mSr, 87Rb(g,n)86Rb and 85Rb(g,n)84Rb was used. Application of a braking radiation of the powerful accelerator of electrons has allowed simultaneously to measure an element composition of samples. The age of biotite from the deposit Stankovatskoe (Ukraine) was measured that corresponds an inhering lithium pegmatites of the Kirovograd block of the Ukrainian Shield to relevant global paleoproterozoic metallogenic episode by age 2.4Ч109 years. Product Description popup.authors popup.nrat_date 2020-04-02 Close