Analysis of cesium isotope compositions in environmental samples by thermal ionization mass spectrometry-3
| Autor: | Koichi Takamiya, Mitsuyuki Konno, Satoshi Fukutani, Hajimu Yamana, Toshiyuki Fujii, Yuji Shibahara, Satoshi Mizuno, Takumi Kubota |
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| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
Soil test Isotope 010401 analytical chemistry Radiochemistry chemistry.chemical_element Thermal ionization mass spectrometry 010403 inorganic & nuclear chemistry 01 natural sciences 0104 chemical sciences law.invention Fukushima daiichi Isotopic ratio Nuclear Energy and Engineering chemistry law Caesium Nuclear power plant Isotope analysis |
| Zdroj: | Journal of Nuclear Science and Technology. 54:158-166 |
| ISSN: | 1881-1248 0022-3131 |
| Popis: | Cesium was recovered from soil samples obtained in Fukushima prefecture. Isotopic analysis of Cs was performed by γ-spectrometry to determine the activity ratio of 134Cs/137Cs and thermal ionization mass spectrometry was used to determine the isotopic ratios of 133Cs/137Cs and 135Cs/137Cs. The analytical results showed that both the activity ratio of 134Cs/137Cs and the isotopic ratio of 135Cs/137Cs were within the expected values for the Fukushima Daiichi Nuclear Power Plant estimated using the ORIGEN-II code, suggesting that most of the radioactive Cs in the soil sample originated from the Fukushima Daiichi Nuclear Power Plant. The concentration of 137Cs and the contribution of radioactive Cs from global fallout were correlated to the distance from the Fukushima Daiichi Nuclear Power Plant, while the contribution of radioactive Cs from each reactor did not show any similar distance dependence. |
| Databáze: | OpenAIRE |
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