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Information × Registration Number 0307U001699, 0106U003137 , R & D reports Title Nuclear-physics and nanotechnological methods of solving the problems of radioactive waste and of the element determination in biological samples popup.stage_title Дослідження спільного масопереносу аналогів РАВ цезію і йоду в формах на основі нанопорошків шпінелі Head Dupliy Stepan Anatoliyovich; Fedorec Ivan Dmitrovich, Registration Date 19-04-2007 Organization Kharkov national university named after V.N. Karazin popup.description2 The results of studying of migration of radionuclides of iodine and cesium -analogs of the radioactive waste - in ceramic spinel samples, both not irradiated and irradiated by ?-radiation up to doses 107 Gy are represented. On the basis of the analysis of data about allocation of concentration of cesium and iodine diffusion coefficients of radionuclides in a material of a matrice are estimated. Joint diffusion of iodine and casium in the ceramic matrices gained in gasostat was investigated. For activation of iodine and cerium isotopes the deceleration emission from a beam of electrons of linear accelerator (Е=28МeV) was used. The results of use of specially developed nuclear design procedure of definition of long-term stability of spinel samples using registration of gamma-radiation from radioactive isotopes which appear at exposing to deceleration radiation as a result of nuclear reactions 133Cs(?,n)132Cs, 127J(?,n)126J are given. Use of a deceleration emission of the powerful electron accelerator has allowed to measure element composition of explored samples simultaneously. The resulted estimations indicate an acceptability of explored spinel nanoceramics as a matrix for long-term packing of radioactive waste. Product Description popup.authors popup.nrat_date 2020-04-02 Close