著者

中野 政尚 國分 祐司 武石 稔

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.44, no.1, pp.60-65, 2009 (Released:2010-10-08)

参考文献数

15

被引用文献数

4

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The tritium concentrations in seawater collected around the Tokai Reprpcessing Plant (TRP) were measured for 10,800 samples in 30 years from 1978. The tritium concentration, dillution factor and diffusion situation were investigated. As a result, the tritium was occationaly detected due to the discharge from TRP. But it was considered to be the result of expected diffusion assumed in the safety assessment. It was confirmed that the tritium concentration was much lower than the concentration limit defined in the law and that it was not concern of environmental safety.

著者

中野 政尚 國分 祐司 武石 稔

出版者

日本保健物理学会

雑誌

保健物理 : hoken buturi (ISSN:03676110)

巻号頁・発行日

vol.44, no.1, pp.60-65, 2009-03

被引用文献数

4

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The tritium concentrations in seawater collected around the Tokai Reprpcessing Plant (TRP) were measured for 10,800 samples in 30 years from 1978. The tritium concentration, dillution factor and diffusion situation were investigated. As a result, the tritium was occationaly detected due to the discharge from TRP. But it was considered to be the result of expected diffusion assumed in the safety assessment. It was confirmed that the tritium concentration was much lower than the concentration limit defined in the law and that it was not concern of environmental safety.

著者

河野 恭彦 檜山 佳典 中野 政尚 武石 稔

出版者

日本保健物理学会

雑誌

保健物理 (ISSN:03676110)

巻号頁・発行日

vol.44, no.2, pp.209-217, 2009 (Released:2010-11-02)

参考文献数

15

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We surveyed the concentration levels of Transuranium (TRU) nuclides in the effluent discharged from the Tokai Reprocessing Plant (TRP) from 1998 to 2003 for Light Water Reactor (LWR) Fuel Reprocessing. The survey was performed for upcoming the effluent monitoring in Fast Breeder Reactor (FBR) Fuel Reprocessing. It was confirmed that the TRU nuclides concentration discharged from the TRP was 1/150∼1/106 much lower than the concentration limits authorized in governmental notification. Then, we compared the normalized discharge amounts by the unit of generated energy from the TRP with those from the foreign reprocessing plants. As a result, the TRP has reduced the amounts of discharged nuclides, by the order of 1/100-1/107 compared with foreign ones. This survey provided the important and basic data in order to compare the effluent of TRU nuclides in FBR and the present nuclear fuel cycles.