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Vertical and horizontal distributions of $$^{137}$$Cs on paved surfaces affected by the Fukushima Dai-ichi Nuclear Power Plant accident

福島第一原子力発電所事故による$$^{137}$$Csの舗装面における鉛直,水平分布

吉村 和也; 渡辺 貴善; 操上 広志

Yoshimura, Kazuya; Watanabe, Takayoshi; Kurikami, Hiroshi

To obtain the important information and parameter for the measurement of $$^{137}$$Cs activity per unit area on paved ground, this study evaluated their vertical and horizontal distributions. This study showed that $$^{137}$$Cs was retained in extremely surface layer with mass depth less than 0.5 cm$$^{-2}$$. This study also demonstrated the horizontal variations of $$^{137}$$Cs activity and the relation of the variation with grid size.

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パーセンタイル:100

分野:Environmental Sciences

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