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Analysis of plutonium isotope ratios including $$^{238}$$Pu/$$^{239}$$Pu in individual U-Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS

Esaka, Fumitaka  ; Yasuda, Kenichiro   ; Suzuki, Daisuke   ; Miyamoto, Yutaka   ; Magara, Masaaki  

The isotope ratios of $$^{238}$$Pu/$$^{239}$$Pu, $$^{240}$$Pu/$$^{239}$$Pu, $$^{241}$$Pu/$$^{239}$$Pu, and $$^{242}$$Pu/$$^{239}$$Pu were measured for individual Pu and U-Pu mixed oxide particles by a combination of alpha spectrometry and inductively coupled plasma mass spectrometry (ICP-MS). As a consequence, we were able to determine the $$^{240}$$Pu/$$^{239}$$Pu, $$^{241}$$Pu/$$^{239}$$Pu, and $$^{242}$$Pu/$$^{239}$$Pu isotope ratios with ICP-MS after particle dissolution and chemical separation of uranium, plutonium and americium with UTEVA resins. Furthermore, $$^{238}$$Pu/$$^{239}$$Pu isotope ratios were able to be calculated by using both the $$^{238}$$Pu/($$^{239}$$Pu+$$^{240}$$Pu) activity ratios that had been measured through alpha spectrometry and the $$^{240}$$Pu/$$^{239}$$Pu isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining plutonium isotope ratios, including $$^{238}$$Pu/$$^{239}$$Pu, in individual U-Pu mixed oxide particles.

Language

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English

Journal

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Talanta

Volume

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165

Number

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Pages

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p.122 - 127

Publication Year/Month

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2017/04

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Held date

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Patent information

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PDF

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Paper URL

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https://doi.org/10.1016/j.talanta.2016.12.041

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DOI for research data

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Keywords

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プルトニウム; 同位体比; 単一粒子; アルファ線計測; ICP-MS

Research Facility

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CLEAR(高度環境分析研究棟)  

Press Release

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Article of JAEA R&D Review

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Determination of Plutonium-Isotope Ratios in Individual U/Pu Mixed Particles; Novel Approach using Alpha and Mass Spectrometry for Nuclear Non-Proliferation[/]

Cooperating Institute

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原子力規制庁

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- Accesses

InCites™

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Percentile:51.41

Category:Chemistry, Analytical

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