Abstract
The time-service of nuclear accident in Fukushima is reviewed and the future subjects for various restorations are discussed. The accidents occurred by attack of the big tsunami over safety guideline following the huge earthquake. Nuclear power plants lost all of emergent electric generators and their heat decay was not removed at last. Finally, lots of radioactive material was released and peoples live near the plant site had to be evacuated. Currently, fuels melt down in the three reactors have been cooled below 100 degree C and are going toward safety end. However, there exist so many subjects for clearance of damaged nuclear plant, picking up and processing of damaged fuels, processing and manage of huge amount of waste, decontamination of and revision of safety guideline of nuclear power plants. We have to solve these subjects one by one from now on.
