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Radiochemistry, 2012
A sample of WWER-1000 spent nuclear fuel (SNF) with the burn-up of approximately 50 GW day (t U)−1 was studied by methods of destructive analysis. Data on the content of isotopes of U, Pu, Am, Cm, Nd, and Cs are given. The methods used are briefly described.
E. R. Petrov +6 more
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A sample of WWER-1000 spent nuclear fuel (SNF) with the burn-up of approximately 50 GW day (t U)−1 was studied by methods of destructive analysis. Data on the content of isotopes of U, Pu, Am, Cm, Nd, and Cs are given. The methods used are briefly described.
E. R. Petrov +6 more
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A study on the burn-up characteristics of inert matrix fuels
Progress in Nuclear Energy, 2015Abstract Proper disposal of minor actinides (MA), long-lived fission products (LLFPs), and transuranium element (TRU) plays a key role in the sustainable development of fission nuclear power. Adoption of inert matrix fuels (IMFs) can effectively reduce the amount of 237 Np and Np element in the spent fuel of present-day commercial power reactors. In
Tao Yu +6 more
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Fuel burn-up fraction in RBMK-1000 reactor
Soviet Atomic Energy, 1986The authors calculate fuel burnup fractions for the four RBMK reactors of the Leningrad plant for both unloaded and loaded fuel and graph the predicted dependence of average burnup for both scenarios on reactor operation time, the distribution function for a steady-state mode of continuous fuel recharging, and a histogram of fuel element distribution ...
A. P. Eperin +6 more
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Rapid Determination of Burn-Up of Nuclear Fuel—a Possible Approach
Separation Science and Technology, 1988Abstract High performance liquid chromatography (HPLC) has been used for the separation and estimation of light rare earths by making use of an anion exchanger or a dynamically modified reverse phase column as a cation exchanger. Both these methods were studied and relative performance was assessed from the point of view of their suitability for the ...
D. Karunasagar +3 more
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Phase characterisation of simulated high burn-up UO2 fuel
Journal of Alloys and Compounds, 1998Abstract To determine the lattice constant variation with burn-up and the oxidation behaviour at high temperatures, simulated UO2-spent fuels with burn-ups up to 200 GWd tM−1 were prepared by cold pressing and sintering and characterised by X-ray diffraction analysis and thermogravimetry.
J Cobos +3 more
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Monitoring Burn-Up of Spent Fuel Assemblies by Gamma Spectrometry
IEEE Transactions on Nuclear Science, 2013High-resolution gamma-spectrometry (HRGS) has been used for monitoring burn-up of VVER-440 spent fuel assemblies. The objective is to support burn-up calculations by an independent experimental method. Measurements were carried out using a collimator tube built into the concrete wall of the service pit in the reactor block at the Paks Nuclear Power ...
C. Tam Nguyen +7 more
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High burn-up structure of U(Mo) dispersion fuel
Journal of Nuclear Materials, 2016Abstract The evolution of the high burn-up structure (HBS) in U(Mo) fuel irradiated up to a burn-up of ∼70% 235U or ∼5 × 1021 f/cm3 or ∼120 GWd/tHM is described and compared to the observation made on LWR fuel. Scanning and transmission electron microscopy was performed on several samples having different burn-ups in order to get a better ...
A. Leenaers +2 more
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Hertzian indentation of advanced lmfbr fuels with simulated burn-up
Journal of Nuclear Materials, 1982Hertzian indentation fracture of advanced fast breeder reactor fuel materials [mixed carbonitrides, (U0.8, Pu0.2)C0.8N0.2, and nitrides (U0.8Pu0.2)N was evaluated to yield the fracture surface energy, γ, and the fracture toughness, KIc. Both technological grade fuels and fuels with added fission products to chemically simulate burn-up values of 3 and ...
Hj. Matzke, T. Inoue
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Synthesis of Nanostructured Fuels: Mimicking the High Burn-Up Structure
Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues, 2014During its lifetime in the core of a nuclear reactor, the fuel undergoes significant changes in its physical, chemical and morphological characteristics. In outer regions of the fuel pellets the so called “high burn-up” or “rim” structure may form. In this region UO2 grains, with an original size of about 10 μm in fresh dense fuel, are reorganized into
Vaclav Tyrpekl +2 more
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“Until the Last Ton of Fossil Fuel Is Burned Up”
Abstract Max Weber is not usually considered an ecological theorist, and he is rarely read for his environmental awareness or ecological insights. Yet his thinking about the central problem of capitalism—especially modern “rational” capitalism and its fateful consequences for humanity—contains some intriguing suggestions for such an ...openaire +1 more source