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Information × Registration Number 0122U000852, ( 0222U005125  ) R & D request Title New methods of registration of long-lived radionuclides in NPP construction materials for their further processing Head Zheltonozhskyi Viktor O., Доктор фізико-математичних наук Registration Date 02-02-2022 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description1 The non-radiochemical detection methods of 59,63Ni, 55Fe, 41Ca, 36Cl, 93Mo will be developed. The photoactivation methods will be used for the non-radiochemical characterization of the irradiated structural materials for their subsequent processing. A series of irradiations will be carrying out on the targets of natural nickel, cobalt, iron, calcium, chlorine and molybdenum and isotopically enriched targets. The yields will be determined for the (g,n)-reactions by using of convolution with a bremsstrahlung spectrum modeled using the Geant4 program code. The calculation of the flux-weighted average yields for the (g,n)-reactions will be done and the formulas for recalculation of activities will be obtained. The approbation of the developed methods will be done and radiochemical researches will be done for the purpose of their verification. popup.nrat_date 2024-12-09 Close