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Information × Registration Number 0216U001280, 0112U004839 , R & D reports Title Scientific and methodical support of works at stages of decommissioning units of nuclear power plants popup.stage_title Head Nosovskyy Anatolyy Vladimirovich, Registration Date 02-02-2016 Organization The interdisciplinary Scientific and Thechnical Center "Shelter" popup.description2 The subject of the study are nuclear power plants (NPPs) at decommissioning stages. The main objective of the study is to develop scientific and methodological recommendations of the main directions of activities that have to be performed at all NPP decommissioning stages. The risks of radioactive substances release beyond the NPP unit confinement during all stages of NPP decommissioning have been analyzed. It was found that these risks are caused by operations of dismantling and decontamination of building structures and equipment with the use of mechanical methods. It was determined the list of input data which should be the basis for fullfilment of the forecast estimation of the environment during implementation of equipment dismantling and decontamination. The main factors of irradiation dose accumulation for the public during NPP units decommmissioning were analyzed. The regulatory release criteria being currently in force in Ukraine and the ones recommended by international rules and standards for NPP site subject to decommisioning, have been analyzed. The approaches were developed to establishing the compliance of the NPP site with the criteria of complete and restricted release from the regulatory control by: Determination of radionuclide composition of radionuclide vector (vectors) for the NPP site contamination.Calculation of doses of the public irradiation under the condition of permanent residence on the exempted from regulatory control territories at the conditions of cultivation and further consumption of all food typical for the area.The derived levels of exemption for key radionuclides were calculated. Product Description popup.authors Богорад Володимир Іванович Слепченко Олександра Юріївна Шевцова Оксана Миколаївна popup.nrat_date 2020-04-02 Close