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Journal Articles

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

Talanta, 165, p.122 - 127, 2017/04

https://doi.org/10.1016/j.talanta.2016.12.041
 Times Cited Count：15 Percentile：51.9(Chemistry, Analytical)

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.

Oral presentation

$$^{238}$$Pu/$$^{239}$$Pu isotope ratio analysis of uranium-plutonium mixed particles by alpha- and mass- spectrometry

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

no journal, , 

Isotope ratio analysis of individual particles containing nuclear materials in environmental samples taken at nuclear facilities is important to clarify the origin and impact on the environment. Recently, nuclear fuels containing uranium and plutonium are utilized for nuclear reactors. Therefore, the analysis of uranium-plutonium mixed particles is also important. In this study, an analytical technique was developed to measure $$^{238}$$Pu/$$^{239}$$Pu isotope ratios by a combination of alpha spectrometry and inductively coupled plasma mass spectrometry.

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