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Evaluation of transfer coefficients of two-compartment prediction models for ambient dose equivalent rates after nuclear accidents

原子力事故後に用いられる空間線量率予測モデルの速度定数評価

木名瀬 栄   

Kinase, Sakae

There have been several studies of two-compartment prediction models for ambient dose equivalent rates in the environment following the nuclear accidents. The long-term prediction models have been proposed as two-compartment models for projected dose assessments following the Fukushima Daiichi Nuclear Power Plant accident. In the present study, two-compartment prediction models were expressed by three simultaneous differential equations with transfer coefficients of radioactive caesium for the central/peripheral compartments. The transfer coefficients were derived from the model parameters for the two-compartment prediction models described using double exponential forms. It was found that the transfer coefficients derived from the model parameters for the Fukushima Daiichi Nuclear Power Plant accident were consistent with those from previous studies.

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