Comparison of different approaches to estimate uncertainty budget in k 0-INAA measurement

Smodiš, Borut; Bučar, T.; Jačimović, Radojko

doi:10.1007/s10967-014-3066-5

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…The latter reason might also cause an impaired detector efficiency calibration. The Na determination in NIST SRM 1547 yielded much higher value than the NIST certified value with both software packages, but this finding is in agreement with recently reported results [17,19,20] Agreement with the NIST values within the uncertainty margins was obtained for 63 and 93 % of elements determined in NIST SRM 2711 using Kayzero for Windows and k0-IAEA programs, respectively, whereas these figures for NIST SRM 1547 were 60 and 90 % using the respective software packages. This seems to suggest that k0-IAEA program provides more satisfactory results, which is obviously due to larger uncertainties of the results evaluated by this software tool.…”

Section: Resultssupporting

confidence: 90%

Feasibility study of k 0-INAA at the ITU TRIGA Mark II research reactor, Turkey

Esen

Haciyakupoglu

Erenturk

et al. 2016

J Radioanal Nucl Chem

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This work is focused on testing the implementation of k 0 -INAA using Kayzero for Windows and k0-IAEA software packages at the ITU TRIGA Mark II research reactor. The neutron spectrum parameters were determined using the bare triple-monitor method with Au and Zr monitors. The k 0 -INAA performance was tested by analysis of NIST SRMs 2711 Montana Soil and 1547 Peach Leaves. The performance assessment based on the E n criterion showed that the concentrations of a number of elements in both NIST SRMs determined by both software packages are in agreement with NIST values.

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Section: Resultssupporting

confidence: 90%

Feasibility study of k 0-INAA at the ITU TRIGA Mark II research reactor, Turkey

Esen

Haciyakupoglu

Erenturk

et al. 2016

J Radioanal Nucl Chem

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“…In PUREX process, the typical concentration of Pu(IV) ranges from 4 mM to 0.14 M depending upon the type of the fuel and conditions employed for extraction [37] . In the partitioning step, it is necessary to reduce all the Pu(IV) present in the organic phase to inextractable Pu(III) by employing the required amount ofU(IV) in the aqueous phase.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach

et al. 2022

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In PUREX process, uranous nitrate has been employed for the reduction of Pu(IV)to Pu(III).Fast generation of U(IV) with high yield is very much crucial for reprocessing of plutonium-rich fuels.In the present work, a catalytic method for the preparation of U(IV) from U(VI) using hydrazine as a reducing agent over Pt/SiO 2 catalyst surface was studied.The effect of various process variables on the efficiency of catalysis was studied and the process variables were optimized by design of experiments approach. Initial screening was carried out by Definitive Screen-ing Design (DSD) to identify the variables that influence the reaction significantly, and later, these significant variables were optimized by Central Composite Design (CCD). A second-order mathematical model was derived from response surface methodology (RSM) that relates the response (% reduction of U(VI)) as a function of significant variables. The model was validated experimentally to achieve 95 % U(IV) yield within 60 minutes.

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“…In this context, solvent extraction is regarded as the most versatile and widely accepted technology in the reprocessing of spent nuclear fuel (SNF) in nuclear industries [2,4–6] . Various ligands have been designed and explored for the separation of actinides and fission products depending on their ligand denticity and the stability of metal‐solvate species (metal‐ligand complex formation) [2,7–13] .…”

Section: Introductionmentioning

confidence: 99%

Ligand Effect on Physicochemical Properties of Ionic Liquid

Rout

Mishra

2023

ChemPhysChem

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In the solvent extraction process, the importance of an extractant (or ligand) and a diluent is inferred from their respective physicochemical properties. We have brought together all the recent results reported on the mixture of different extractants dissolved in a well-known ionic liquid diluent: 1butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C 4 mim][NTf 2 ]) in the form of a review and aimed to emphasize the role of ligand polarity and structure on the physicochemical properties of an ionic liquid (IL) diluent. Some of the most important properties such as dynamic viscosity (η), absolute density (1), energy of activation (E a ), coefficient of thermal expansion (α), phase separation time (PST), refractive index (n), etc., have been discussed meticulously in the paper. The effect of ligand structure on the aggregation behaviour of IL phase and the physicochemical properties of gamma irradiated solvent phases containing different ligands and their solution with IL phase also have been deliberated in detail.

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Comparison of different approaches to estimate uncertainty budget in k 0-INAA measurement

Cited by 8 publications

References 7 publications

Feasibility study of k 0-INAA at the ITU TRIGA Mark II research reactor, Turkey

Feasibility study of k 0-INAA at the ITU TRIGA Mark II research reactor, Turkey

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach

Ligand Effect on Physicochemical Properties of Ionic Liquid

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Comparison of different approaches to estimate uncertainty budget in k 0-INAA measurement

Cited by 8 publications

References 7 publications

Feasibility study of k 0-INAA at the ITU TRIGA Mark II research reactor, Turkey

Feasibility study of k 0-INAA at the ITU TRIGA Mark II research reactor, Turkey

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO2 using Hydrazine as Reducing Agent – Design of Experiments Approach

Ligand Effect on Physicochemical Properties of Ionic Liquid

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Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach