Technology development to evaluate dose rate distribution and search for fuel debris submerged in water for decommissioning of Fukushima Daiichi Nuclear Power Station, 1; Objective and research plan

Katakura, Junichi*; Okumura, Keisuke ; Kim, K.*; Joyce, M. J.*; Lennox, B.*

To contribute to the decommissioning acceleration of the Fukushima Daiichi Nuclear Power Station, the following two key technology developments have been carried out in cooperation with UK research organization. One is "the development of the evaluation technology of dose rate distribution" which is aiming to evaluate the most probable dose rate distribution by combination of the actual measurement value and the theoretical calculation. Another is "the technology development to search for the submerged fuel debris" by using sonar, small detector, underwater robot. In this presentation, we report on the research objectives and the overall plan.