Overview and point of Monju spent fuel removal operation

Tozawa, Katsuhiro

Since Monju shifted to decommissioning with the fuel assembly in the nuclear reactor, it is decided to take the fuel assembly removal top priority by the year 2022 in the first stage of D&D plan. Fuel removal operation is carried out using fuel handling and storage facilities (such as Ex-vessel transfer Machine and fuel cleaning facility), but since experience of processing and storage of actual fuel assembly has been limited so far, sufficient preparations were made. As of October 3, 24 fuel assemblies have been taken out from Ex-vessel transfer tank. 100 fuel assemblies are withdrawn during this fiscal year, and 530 fuel assemblies are withdrawn by FY 2022. We will make the dismantling plan of the second and subsequent stages.