Нейтронно-физические аспекты проблемы обращения с облученным ядерным топливом с повышенной глубиной выгорания

The main sources of neutron radiation of the irradiated nuclear fuel are considered. It is found, that at increased burnup fraction of nuclear fuel and its aging from three years and more the main neutron radiator is 244Cm, and contribution of (α, n)-reaction to the common neutron activity is caused by presence and quantity of isotopes Pu, Am and Cm. Parameters of radiation environment near the transport container of a serial design with placed inside standard irradiated fuel assemblies and assemblies on the basis of UO2 and PuO2 are evaluated. It is found, that efficiency of protection of a transport container essentially decreases with increase in depth of burnup fraction of the assembly.