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202091 · Uranium sample was digested, separated with the UTEVA resin and directly diluted for ICP-MS/MS measurement under optimized He collision mode. Recoveries of all the impurities exceed 90%, most of which were more than 95%. The inter-element inferences as well as the solution matrix effects on the impurity signals were investigated.
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Laser-induced breakdown spectroscopy (LIBS), a spectrochemical technique in which a laser beam is used as the excitation source, was applied to detect trace elements contained in uranium and plutonium dioxides. Partial spectra of plasmas, generated by focusing the second harmonic (lambda = 532 nm) of a pulsed Nd:YAG laser on UO2 and PuO2 targets …
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202432 · Uranium, a cornerstone for nuclear energy, facilitates a clean and efficient energy conversion. In the era of global clean energy initiatives, uranium resources have emerged as a vital component for achieving sustainability and clean power. To fulfill the escalating demand for clean energy, continual advancements in uranium mining …
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2018819 · Measurement methods for the analysis of trace impurities in uranium materials, essential in nuclear fuel production and nuclear forensics, are continuously improving. Analytical methods were developed with the goal of lowering uncertainties of next generation certified uranium oxide reference materials for trace impurity concentrations. …
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202131 · The uranium nearest neighbors surrounding the carbon vacancy in UC 1 − x and the oxygen impurity in UC 1 − x O x move toward the vacancy site and outward from the oxygen impurity. This leads to a slightly longer distance between the oxygen impurity and the neighboring U-atoms (2.49 Å) as compared to the initial C–U distance of 2.48 Å.
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2023518 · Uraninite is a mineral that is primarily composed of uranium oxide. It is a significant ore of uranium, which is an important element used for nuclear power generation and in the production of nuclear weapons. Uraninite is known for its distinctive black color and high uranium content. It has a dense, heavy texture and is often found in ...
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202378 · The content of impurity elements (C, Si, Fe, etc) in depleted uranium bulk is generally not higher than 1000 ppm. Prior to introduction into the stainless-steel chamber the uranium sample was cleaned in 50% HNO 3 , rinsed in distilled water and dried with alcohol.
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2020111 · The uranium mine is specifically located in the Riacho da Vaca basin, which occupies an area of 94.5 km 2 and comprises some important rivers such as the Fundo and São João rivers, ... The exploitation of this semiprecious stone, which owes its violet tone to impurities of Fe and other transition metals as Mn, could probably be the …
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202091 · 1. Introduction. Uranium milling is the process of extracting and purifying uranium ore concentrates (UOC) from uranium-rich geological deposits. On the order of 62,071 tons of uranium were produced worldwide in 2016 by commercial U mills; Kazakhstan’s and Canada’s production combined to account for over 62% of the total …
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2023118 · Canada is the second largest producer of Uranium, accounting for 13% of global output and earning $800,000,000 for the economy in 2018. Additionally, nuclear reactors powered by uranium supply 15% of Canada's electricity. In 2017, Canada had 514,000 tonnes of uranium (8% of the world's known supply) worth 130 USD per kilogram.
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