Prediction of dose rates around the interim spent fuel storage facility

Leotlela, Mosebetsi J; Hadebe, Nokahle.D.; Petr, I.; Sunil, Abraham.

doi:10.1016/j.radphyschem.2020.109171

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Because the cask is made up of polyethylene rods and is also flooded with water, the neutron flux of thermal neutrons backscattered to the fuel assembly will be maximised and thus increase the keff. However, given that the concentration of hydrogen is time-dependent [17], it follows therefore that the keff will also fluctuate between any given points [18].…”

Section: High-multiplying Reflectormentioning

confidence: 99%

Quantifying the Correlation between the Neutron Multiplication Factor and the Spatial Arrangement of Spent Fuel Casks in a Spent Fuel Storage Facility

Leotlela¹,

Mathye²

2023

Preprint

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Section: High-multiplying Reflectormentioning

confidence: 99%

Quantifying the Correlation between the Neutron Multiplication Factor and the Spatial Arrangement of Spent Fuel Casks in a Spent Fuel Storage Facility

Leotlela¹,

Mathye²

2023

Preprint

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“…Due to technological limitations, this spent fuel undergoes simple reprocessing and is then solidified and buried as nuclear waste. This nuclear waste not only poses environmental safety hazards but also leads to significant resource wastage [3]. While the previous literature has documented the recovery 2 of 23 and utilization of trace thorium in simulated reprocessing samples, enhancing separation methods to improve the recovery rate remains a challenge in spent fuel reprocessing [4,5].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Quaternary Ammonium Separation Material based on Coupling Agent Chloromethyl Trimethoxysilane (KH-150) and Its Adsorption and Separation Properties in Studies of Th(IV)

Wang,

Wu,

Liu

et al. 2024

Molecules

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In this research, the authors studied the synthesis of a silicon-based quaternary ammonium material based on the coupling agent chloromethyl trimethoxysilane (KH-150) as well as its adsorption and separation properties for Th(IV). Using FTIR and NMR methods, the silicon-based materials before and after grafting were characterized to determine the spatial structure of functional groups in the silicon-based quaternary ammonium material SG-CTSQ. Based on this, the functional group grafting amount (0.537 mmol·g−1) and quaternization rate (83.6%) of the material were accurately calculated using TGA weight loss and XPS. In the adsorption experiment, the four materials with different grafting amounts showed different degrees of variation in their adsorption of Th(IV) with changes in HNO3 concentration and NO3− concentration but all exhibited a tendency toward anion exchange. The thermodynamic and kinetic experimental results demonstrated that materials with low grafting amounts (SG-CTSQ1 and SG-CTSQ2) tended to physical adsorption of Th(IV), while the other two tended toward chemical adsorption. The adsorption mechanism experiment further proved that the functional groups achieve the adsorption of Th(IV) through an anion-exchange reaction. Chromatographic column separation experiments showed that SG-CTSQ has a good performance in U-Th separation, with a decontamination factor for uranium in Th(IV) of up to 385.1, and a uranium removal rate that can reach 99.75%.

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Qualitative and semi-quantitative study of radiolytic products of tributyl phosphate-functionalized ionic liquids

Wang

Liu

et al. 2023

Radiation Physics and Chemistry

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Prediction of dose rates around the interim spent fuel storage facility

Cited by 4 publications

References 7 publications

Quantifying the Correlation between the Neutron Multiplication Factor and the Spatial Arrangement of Spent Fuel Casks in a Spent Fuel Storage Facility

Quantifying the Correlation between the Neutron Multiplication Factor and the Spatial Arrangement of Spent Fuel Casks in a Spent Fuel Storage Facility

Preparation of Quaternary Ammonium Separation Material based on Coupling Agent Chloromethyl Trimethoxysilane (KH-150) and Its Adsorption and Separation Properties in Studies of Th(IV)

Qualitative and semi-quantitative study of radiolytic products of tributyl phosphate-functionalized ionic liquids

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