
The Nuclear Damage Compensation and Decommissioning Facilitation Corp. (NDF) is considering the feasibility of a submersion method for the removal of radioactive debris at Tokyo Electric Power Company Holdings Inc.'s Fukushima No. 1 nuclear power plant.
The plan involves using a tank-like structure to encapsulate a reactor building and filling the structure with water and then removing debris. As water acts as a shield against radiation, the method would be expected to improve the safety levels of decommissioning work. However, the feasibility of the plan is uncertain given the unprecedented scale and high costs.