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Survey of $$^{129}$$I concentration in soil within 10 km radius from the Tokai Reprocessing Plant using accelerator mass spectrometry

Kokubun, Yuji ; Yokoyama, Hiroya; Fujita, Hiroki; Nakano, Masanao ; Sumiya, Shuichi 

The horizontal distribution of $$^{129}$$I in soil within 10km radius from Tokai Reprocessing Plant (TRP) as well as the vertical distribution at 2 km southwest from TRP were measured using the Accelerator Mass Spectrometry (AMS) method. As a result, the small amounts of $$^{129}$$I were observed due to the atmospheric discharge from TRP. It was good agreement with the predicted concentrations in safety assessment. The validity of the diffusion calculation was confirmed in the 10 km radius. Moreover, the results of vertical distribution of $$^{129}$$I show equivalent value to be a churning layer and decreased rapidly in the depth more than it.

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Japanese

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日本保健物理学会第46回研究発表会

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2013/06

Location (city)

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千葉

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日本

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no keyword

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Press Release

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Article of JAEA R&D Review

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- Accesses

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