Technology development to evaluate dose rate distribution and to search for fuel debris submerged in water for decommissioning of Fukushima Daiichi Nuclear Power Station, 5; Prediction of dose rate distribution in primary containment vessel

Okumura, Keisuke ; Riyana, E. S.   ; Sato, Wakaei*; Maeda, Hirobumi*; Katakura, Junichi*

Based on the results of fuel burn-up calculations and activation calculations for structural materials and on those of severe accident progression analyses and internal investigations by IRID, we predicted a three-dimensional dose rate distribution in the containment vessel of Unit 1 at the Fukushima Daiichi Nuclear Power Station.