Consideration of decontamination model for severe accident consequence assessment

Silva, K.*; 岡本 孝司*; 石渡 祐樹*; 高原 省五; Promping, J.*

Journal of Nuclear Science and Technology, 52(11), p.1402 - 1416, 2015/11

https://doi.org/10.1080/00223131.2015.1005033

A new decontamination model is formed to make further discussion based on realistic assumptions taking into account the Fukushima Daiichi Nuclear Power Plant accident. A sensitivity analysis using the elementary effects method is performed to identify parameters which have large influence on the cost per severe accident. We identify 25 important parameters, and fix most negligible parameters to their medians to form a simplified decontamination model. Calculations of the cost per severe accident with the simplified model and the full model are performed and compared. The differences of the results of the two models are not significant, which ensure the validity of the simplified model.