The Experts below are selected from a list of 210 Experts worldwide ranked by ideXlab platform
Masaaki Magara - One of the best experts on this subject based on the ideXlab platform.
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analysis of Plutonium Isotope ratios including 238pu 239pu in individual u pu mixed oxide particles by means of a combination of alpha spectrometry and icp ms
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Analysis of Plutonium Isotope ratios including 238Pu/239Pu in individual U-Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS.
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Determination of Plutonium Isotope ratios in individual uranium–Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, ^240Pu/^239Pu, ^241Pu/^239Pu and ^242Pu/^239Pu Isotope ratios were successfully determined, while it was impossible to determine ^238Pu/^239Pu ratios due to the high process blank values on m/z 238.
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determination of Plutonium Isotope ratios in individual uranium Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, 240Pu/239Pu, 241Pu/239Pu and 242Pu/239Pu Isotope ratios were successfully determined, while it was impossible to determine 238Pu/239Pu ratios due to the high process blank values on m/z 238.
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direct Isotope ratio analysis of individual uranium Plutonium mixed particles with various u pu ratios by thermal ionization mass spectrometry
Applied Radiation and Isotopes, 2015Co-Authors: Daisuke Suzuki, Fumitaka Esaka, Yutaka Miyamoto, Masaaki MagaraAbstract:Uranium and Plutonium Isotope ratios in individual uranium-Plutonium (U-Pu) mixed particles with various U/Pu atomic ratios were analyzed without prior chemical separation by thermal ionization mass spectrometry (TIMS). Prior to measurement, micron-sized particles with U/Pu ratios of 1, 5, 10, 18, and 70 were produced from uranium and Plutonium certified reference materials. In the TIMS analysis, the peaks of americium, Plutonium, and uranium ion signals were successfully separated by continuously increasing the evaporation filament current. Consequently, the uranium and Plutonium Isotope ratios, except the (238)Pu/(239)Pu ratio, were successfully determined for the particles at all U/Pu ratios. This indicates that TIMS direct analysis allows for the measurement of individual U-Pu mixed particles without prior chemical separation.
Fumitaka Esaka - One of the best experts on this subject based on the ideXlab platform.
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analysis of Plutonium Isotope ratios including 238pu 239pu in individual u pu mixed oxide particles by means of a combination of alpha spectrometry and icp ms
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Analysis of Plutonium Isotope ratios including 238Pu/239Pu in individual U-Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS.
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Determination of Plutonium Isotope ratios in individual uranium–Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, ^240Pu/^239Pu, ^241Pu/^239Pu and ^242Pu/^239Pu Isotope ratios were successfully determined, while it was impossible to determine ^238Pu/^239Pu ratios due to the high process blank values on m/z 238.
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determination of Plutonium Isotope ratios in individual uranium Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, 240Pu/239Pu, 241Pu/239Pu and 242Pu/239Pu Isotope ratios were successfully determined, while it was impossible to determine 238Pu/239Pu ratios due to the high process blank values on m/z 238.
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direct Isotope ratio analysis of individual uranium Plutonium mixed particles with various u pu ratios by thermal ionization mass spectrometry
Applied Radiation and Isotopes, 2015Co-Authors: Daisuke Suzuki, Fumitaka Esaka, Yutaka Miyamoto, Masaaki MagaraAbstract:Uranium and Plutonium Isotope ratios in individual uranium-Plutonium (U-Pu) mixed particles with various U/Pu atomic ratios were analyzed without prior chemical separation by thermal ionization mass spectrometry (TIMS). Prior to measurement, micron-sized particles with U/Pu ratios of 1, 5, 10, 18, and 70 were produced from uranium and Plutonium certified reference materials. In the TIMS analysis, the peaks of americium, Plutonium, and uranium ion signals were successfully separated by continuously increasing the evaporation filament current. Consequently, the uranium and Plutonium Isotope ratios, except the (238)Pu/(239)Pu ratio, were successfully determined for the particles at all U/Pu ratios. This indicates that TIMS direct analysis allows for the measurement of individual U-Pu mixed particles without prior chemical separation.
Daisuke Suzuki - One of the best experts on this subject based on the ideXlab platform.
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analysis of Plutonium Isotope ratios including 238pu 239pu in individual u pu mixed oxide particles by means of a combination of alpha spectrometry and icp ms
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Analysis of Plutonium Isotope ratios including 238Pu/239Pu in individual U-Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS.
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Determination of Plutonium Isotope ratios in individual uranium–Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, ^240Pu/^239Pu, ^241Pu/^239Pu and ^242Pu/^239Pu Isotope ratios were successfully determined, while it was impossible to determine ^238Pu/^239Pu ratios due to the high process blank values on m/z 238.
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determination of Plutonium Isotope ratios in individual uranium Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, 240Pu/239Pu, 241Pu/239Pu and 242Pu/239Pu Isotope ratios were successfully determined, while it was impossible to determine 238Pu/239Pu ratios due to the high process blank values on m/z 238.
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direct Isotope ratio analysis of individual uranium Plutonium mixed particles with various u pu ratios by thermal ionization mass spectrometry
Applied Radiation and Isotopes, 2015Co-Authors: Daisuke Suzuki, Fumitaka Esaka, Yutaka Miyamoto, Masaaki MagaraAbstract:Uranium and Plutonium Isotope ratios in individual uranium-Plutonium (U-Pu) mixed particles with various U/Pu atomic ratios were analyzed without prior chemical separation by thermal ionization mass spectrometry (TIMS). Prior to measurement, micron-sized particles with U/Pu ratios of 1, 5, 10, 18, and 70 were produced from uranium and Plutonium certified reference materials. In the TIMS analysis, the peaks of americium, Plutonium, and uranium ion signals were successfully separated by continuously increasing the evaporation filament current. Consequently, the uranium and Plutonium Isotope ratios, except the (238)Pu/(239)Pu ratio, were successfully determined for the particles at all U/Pu ratios. This indicates that TIMS direct analysis allows for the measurement of individual U-Pu mixed particles without prior chemical separation.
Yutaka Miyamoto - One of the best experts on this subject based on the ideXlab platform.
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analysis of Plutonium Isotope ratios including 238pu 239pu in individual u pu mixed oxide particles by means of a combination of alpha spectrometry and icp ms
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Analysis of Plutonium Isotope ratios including 238Pu/239Pu in individual U-Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS.
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Determination of Plutonium Isotope ratios in individual uranium–Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, ^240Pu/^239Pu, ^241Pu/^239Pu and ^242Pu/^239Pu Isotope ratios were successfully determined, while it was impossible to determine ^238Pu/^239Pu ratios due to the high process blank values on m/z 238.
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determination of Plutonium Isotope ratios in individual uranium Plutonium mixed particles with inductively coupled plasma mass spectrometry
Journal of Radioanalytical and Nuclear Chemistry, 2015Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Masaaki MagaraAbstract:An analytical technique was developed by a combination of single particle dissolution, chemical separation of uranium, Plutonium and americium with extraction chromatography using UTEVA resins and measurement with inductively coupled plasma mass spectrometry. This method was applied to Plutonium Isotope ratio analysis of individual U–Pu particles with U/Pu ratios ranging from 1 to 70. Consequently, 240Pu/239Pu, 241Pu/239Pu and 242Pu/239Pu Isotope ratios were successfully determined, while it was impossible to determine 238Pu/239Pu ratios due to the high process blank values on m/z 238.
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direct Isotope ratio analysis of individual uranium Plutonium mixed particles with various u pu ratios by thermal ionization mass spectrometry
Applied Radiation and Isotopes, 2015Co-Authors: Daisuke Suzuki, Fumitaka Esaka, Yutaka Miyamoto, Masaaki MagaraAbstract:Uranium and Plutonium Isotope ratios in individual uranium-Plutonium (U-Pu) mixed particles with various U/Pu atomic ratios were analyzed without prior chemical separation by thermal ionization mass spectrometry (TIMS). Prior to measurement, micron-sized particles with U/Pu ratios of 1, 5, 10, 18, and 70 were produced from uranium and Plutonium certified reference materials. In the TIMS analysis, the peaks of americium, Plutonium, and uranium ion signals were successfully separated by continuously increasing the evaporation filament current. Consequently, the uranium and Plutonium Isotope ratios, except the (238)Pu/(239)Pu ratio, were successfully determined for the particles at all U/Pu ratios. This indicates that TIMS direct analysis allows for the measurement of individual U-Pu mixed particles without prior chemical separation.
Kenichiro Yasuda - One of the best experts on this subject based on the ideXlab platform.
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analysis of Plutonium Isotope ratios including 238pu 239pu in individual u pu mixed oxide particles by means of a combination of alpha spectrometry and icp ms
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.
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Analysis of Plutonium Isotope ratios including 238Pu/239Pu in individual U-Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS.
Talanta, 2017Co-Authors: Fumitaka Esaka, Daisuke Suzuki, Yutaka Miyamoto, Kenichiro Yasuda, Masaaki MagaraAbstract:Isotope ratio analysis of individual uranium-Plutonium (U-Pu) mixed oxide particles contained within environmental samples taken from nuclear facilities is proving to be increasingly important in the field of nuclear safeguards. However, isobaric interferences, such as 238U with 238Pu and 241Am with 241Pu, make it difficult to determine Plutonium Isotope ratios in mass spectrometric measurements. In the present study, the Isotope ratios of 238Pu/239Pu, 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu 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 240Pu/239Pu, 241Pu/239Pu, and 242Pu/239Pu Isotope ratios with ICP-MS after particle dissolution and chemical separation of Plutonium with UTEVA resins. Furthermore, 238Pu/239Pu Isotope ratios were able to be calculated by using both the 238Pu/(239Pu+240Pu) activity ratios that had been measured through alpha spectrometry and the 240Pu/239Pu Isotope ratios determined through ICP-MS. Therefore, the combined use of alpha spectrometry and ICP-MS is useful in determining Plutonium Isotope ratios, including 238Pu/239Pu, in individual U-Pu mixed oxide particles.