Evaluating the status of uranium isotope ratio measurements using an inter-laboratory comparison campaign

Stephan, Richter; Alonso, A.; Jan, Truyens; Heinz, Kuehn; Andre, Verbruggen; Wellum, R.

doi:10.1016/j.ijms.2007.04.013

Cited by 26 publications

(20 citation statements)

References 14 publications

(18 reference statements)

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“…VERA has participated in the blind inter-comparison exercise REIMEP-18 [24] for diluted uranium solutions. Our results submitted for ''REIMEP 18 A" is 236 U/ 238 U = 3.047(76) Â 10 À8 .…”

Section: Samplesmentioning

confidence: 99%

Natural and anthropogenic 236U in environmental samples

Steier¹,

Bichler²,

Fifield³

et al. 2008

Nuclear Instruments and Methods in Physics Research Section B:

178

127

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“…VERA has participated in the blind inter-comparison exercise REIMEP-18 [24] for diluted uranium solutions. Our results submitted for ''REIMEP 18 A" is 236 U/ 238 U = 3.047(76) Â 10 À8 .…”

Section: Samplesmentioning

confidence: 99%

Natural and anthropogenic 236U in environmental samples

Steier¹,

Bichler²,

Fifield³

et al. 2008

Nuclear Instruments and Methods in Physics Research Section B:

178

127

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“…Additionally, TIMS has profited from significant instrumental improvements on the detection side. For instance, the multiple ion counting (MIC) systems enabled to lower the minimum sample amounts required from the micro-to the low picogram range for both uranium and plutonium [8][9][10][11][12][13][14][15]. However, the ionization efficiency of uranium (ratio of atoms ionized to sample atoms loaded on a filament) is relatively poor in a TIMS source.…”

Section: Introductionmentioning

confidence: 99%

Development of an improved method to perform single particle analysis by TIMS for nuclear safeguards

Kraiem

Stephan

Kühn

et al. 2011

Analytica Chimica Acta

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“…The simplified evolution chain of 248 Cm under neutron irradiation is presented in figure 1. Figure 1 shows Thermal Ionisation Mass Spectrometry (TIMS) is the technique of choice for actinides measurements in nuclear sample when high accuracy is needed [8][9][10]. This method advanced analytical capacities with per-mil-level precision [11,12] and the latest generation of these instruments allows isotope measurements with precision of several ppm level [13,14].…”

Section: Introductionmentioning

confidence: 99%

Accurate determination of Curium and Californium isotopic ratios by inductively coupled plasma quadrupole mass spectrometry (ICP-QMS) in 248Cm samples for transmutation studies

Gourgiotis,

Isnard,

Aubert

et al. 2010

International Journal of Mass Spectrometry

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46The French Atomic Energy Commission has carried out several experiments including the 47 mini-INCA (INcineration of Actinides) project for the study of minor-actinide transmutation 48 processes in high intensity thermal neutron fluxes, in view of proposing solutions to reduce 49 the radiotoxicity of long-lived nuclear wastes. In this context, a Cm sample enriched in 248 Cm 50 (~97 %) was irradiated in thermal neutron flux at the High Flux Reactor (HFR) of the Laue-51Langevin Institute (ILL). This work describes a quadrupole ICP-MS (ICP-QMS) analytical 52 procedure for precise and accurate isotopic composition determination of Cm before sample 53 irradiation and of Cm and Cf after sample irradiation. The factors that affect the accuracy and 54 reproducibility of isotopic ratio measurements by ICP-QMS, such as peak centre correction, 55 detector dead time, mass bias, abundance sensitivity and hydrides formation, instrumental 56 background, and memory blank were carefully evaluated and corrected. Uncertainties of the 57 isotopic ratios, taking into account internal precision of isotope ratio measurements, peak 58 tailing, and hydrides formations ranged from 0.3% to 1.3%. This uncertainties range is quite 59 acceptable for the nuclear data to be used in transmutation studies.

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Evaluating the status of uranium isotope ratio measurements using an inter-laboratory comparison campaign

Cited by 26 publications

References 14 publications

Natural and anthropogenic 236U in environmental samples

Natural and anthropogenic 236U in environmental samples

Development of an improved method to perform single particle analysis by TIMS for nuclear safeguards

Accurate determination of Curium and Californium isotopic ratios by inductively coupled plasma quadrupole mass spectrometry (ICP-QMS) in 248Cm samples for transmutation studies

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