Development in fission track-thermal ionization mass spectrometry for particle analysis of safeguards environmental samples

Lee, C. G.; Iguchi, K.; Inagawa, Jun; Suzuki, D.; Esaka, Fumitaka; Magara, Masaaki; Sakurai, S.; Watanabe, Kazuo; Usuda, Shigekazu

doi:10.1007/s10967-007-0519-0

Cited by 50 publications

(29 citation statements)

References 5 publications

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“…[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] The methods and procedures were validated, for example, by the use of reference materials certified by NBL (New Brunswick Laboratory) such as CRM111A ( 233 U 29 for validation of the developed bulk and particle analytical methods. The JAEA's measurement results and capabilities were proved to be excellent in the comparisons.…”

Section: Validation Of Methodsmentioning

confidence: 99%

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QA/QC Activities and Estimation of Uncertainty for Ultra-trace Analysis of Uranium and Plutonium in Safeguards Environmental Samples

Usuda

Magara

Esaka

et al. 2010

Journal of Nuclear and Radiochemical Sciences

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Japan Atomic Energy Agency (JAEA) has been conducting the environmental sample analysis, which is one of the IAEA's safeguards measures. In the analysis, isotope ratios of ultra-trace amounts of uranium and plutonium in samples taken from nuclear facilities are determined to detect undeclared nuclear materials and activities. In order to keep and enhance the reliability of the measurement results, validation of analytical methods and estimation of measurement uncertainty in such ultra-trace analysis should be properly done in accordance with worldwide standards. In this paper, the current activities on achievement of QA/QC (quality assurance and quality control) and estimation of measurement uncertainty in the ultra-trace analysis at a clean chemistry laboratory (CLEAR) of JAEA are reported.

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Section: Validation Of Methodsmentioning

confidence: 99%

“…[14][15][16] For the FT-TIMS method, it is easy to observe FT by an optical microscope and to collect the particles separately (see Figure 3 right). [21][22][23] This method enables us to selectively detect highly enriched U particles, which is critical in the nuclear safeguards. 25 …”

Section: Daily Inspectionmentioning

confidence: 99%

QA/QC Activities and Estimation of Uncertainty for Ultra-trace Analysis of Uranium and Plutonium in Safeguards Environmental Samples

Usuda

Magara

Esaka

et al. 2010

Journal of Nuclear and Radiochemical Sciences

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“…[3][4][5][6][7][8][9][10][11][12] The SIMS allows us to analyze samples easily and rapidly. A main drawback in SIMS is molecular ion interferences by other elements in other particles.…”

Section: -2mentioning

confidence: 99%

Feasibility Study of Isotope Ratio Analysis of Individual Uranium-Plutonium Mixed Oxide Particles with SIMS and ICP-MS

Esaka¹,

Magara²,

Suzuki³

et al. 2011

Mass Spectrometry Letters

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Isotope ratio analysis of nuclear materials in individual particles is of great importance for nuclear safeguards. Although secondary ion mass spectrometry (SIMS) and thermal ionization mass spectrometry (TIMS) are utilized for the analysis of individual uranium particles, few studies were conducted for the analysis of individual uranium-plutonium mixed oxide particles. In this study, we applied SIMS and inductively coupled plasma mass spectrometry (ICP-MS) to the isotope ratio analysis of individual U-Pu mixed oxide particles. In the analysis of individual U-Pu particles prepared from mixed solution of uranium and plutonium standard reference materials, accurate Pu peak has a possibility to prevent accurate analysis of plutonium isotope ratios. These problems would be avoided by a combination of ICP-MS and chemical separation of uranium, plutonium and americium in individual U-Pu particles.

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“…2 Currently, analyses are predominantly performed by secondary ion mass spectrometry (SIMS) or fission track combined with thermal ionization mass spectrometry. [3][4][5] This paper focuses on the SIMS method applied to the uranium particle analysis. Recently, the performance of SIMS measurements for this application has been greatly improved using large geometry-SIMS (LG-SIMS) instruments that provide both automated screening capabilities to locate particles of interest as well as high precision isotopic measurements using a multi-ion counting detector system.…”

Section: Introductionmentioning

confidence: 99%

Latest improvements in isotopic uranium particle analysis by large geometry–secondary ion mass spectrometry for nuclear safeguards purposes

Hedberg

Peres

Fernandes

et al. 2018

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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Large geometry secondary ion mass spectrometry can be efficiently used to analyze uranium aerosol particles from dust samples in the search for undeclared nuclear activities. Automated sample screening measurements are followed by more precise and accurate microbeam measurements of both the major and minor uranium isotopes on selected individual particles. The quality of this work is essential in order to be able to draw valuable safeguards conclusions. This paper describes the latest developments that have been undertaken to enhance the detection limits and to reduce the uranium isotope measurement uncertainty. It includes improvements in the analytical protocol as well as in the instrument acquisition software and data reduction method. Recent useful yield measurements have been performed on uranium monodispersed particles using different primary bombardment conditions to compare to previously obtained data. Comparison of uranium isotope measurements when using pyrolytic graphite or silica planchets as a sample substrate will also be presented.

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Development in fission track-thermal ionization mass spectrometry for particle analysis of safeguards environmental samples

Cited by 50 publications

References 5 publications

QA/QC Activities and Estimation of Uncertainty for Ultra-trace Analysis of Uranium and Plutonium in Safeguards Environmental Samples

QA/QC Activities and Estimation of Uncertainty for Ultra-trace Analysis of Uranium and Plutonium in Safeguards Environmental Samples

Feasibility Study of Isotope Ratio Analysis of Individual Uranium-Plutonium Mixed Oxide Particles with SIMS and ICP-MS

Latest improvements in isotopic uranium particle analysis by large geometry–secondary ion mass spectrometry for nuclear safeguards purposes

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