基于福岛核事故监测数据的辐射剂量场重构方法研究

Abstract

Abstract: The reconstruction of radiation dose field is an important tool for emergency work after nuclear accidents. In order to explore suitable interpolation method for radiation dose field reconstruction, in this article the inverse distance weighted interpolation, kriging interpolation, linear triangulation interpolation, and radial basis function interpolation are used respectively, to interpolate and reconstruct the radiation monitoring data released after the accident at the Fukushima Daiichi Nuclear Power Plant in Japan. By dividing different numbers of test sets, the accuracy of radiation dose field reconstruction through these interpolation methods were compared when taking the root mean square error, average absolute error, and standard deviation as basis. The research results show that the radial basis function interpolation is superior to the other three methods in accuracy of interpolation, and can determine the radiation dose distribution more accurately. It is also expected to be applied to other radiation dose fields and provide powerful dose assessment and radiation dose field reconstruction tools for subsequent nuclear emergency work.

Key words: radiation dose field reconstruction, monitoring data, spatial interpolation, radial basis function, Fukushima nuclear accident

CLC Number:

TL72

XU Yao, CHEN Xiaolei, HUANG Guangwei, WU Yunhui, CHEN Lin. Research on radiation dose field reconstruction method based on monitoring data from Fukushima nuclear accident[J].RADIATION PROTECTION, 2022, 42(3): 193-200.

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Research on radiation dose field reconstruction method based on monitoring data from Fukushima nuclear accident

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