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5 results for “Plutonium”
Temporal evolution of plutonium concentrations and isotopic ratios, cesium activity concentrations, granulometric parameters and organic matter properties in the Ukedo–Takase Rivers draining the Difficult-To-Return Zone in Fukushima, Japan (2013–2020)
<p>The current dataset was compiled to investigate the temporal evolution of plutonium concentrations, isotopic ratios and radiocesium activity concentrations in flood sediment deposits collected in the Ukedo and Takase Rivers, draining a part of the Difficult-to-Return Zone, in Fukushima Prefecture, from 2013 to 2020. These radionuclides were released in large quantities during the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident that occurred in March 2011 in Northeastern Japan (Steinhauser et al., 2014). Models showed that ~ 80 % of radionuclide releases occurred over the ocean (Mathieu et al., 2018; MEXT, 2011). The radioactive plume is drained by several coastal rivers to the Pacific Ocean, and sediment-bound radionuclide transfers in these rivers are mainly controlled by the occurrence of typhoons and tropical storms (Evrard et al., 2021). The objective of the research relying on the current database is to investigate the temporal changes in Pu signatures that occurred between 2013 and 2020 in flood sediment deposits collected in the Ukedo and the Takase Rivers, and to identify potential factors controlling these changes by the means of statistical approach.</p> <p>The current dataset comprises an Excel file including the variables description, and the data itself.</p>
Tracing stratospheric transport using sub-annual plutonium-239 fallout in polar ice cores
Open the record for dataset details and reuse information.
Insights from quantum chemical calculations into inner and outer-sphere complexation of plutonium(IV) by monoamide and carbamide extractants - Dataset
<p>Supplementary information for "Insights from quantum chemical calculations into inner and outer-sphere complexation of plutonium(IV) by monoamide and carbamide extractants"<br> The attached 'Pu-inner-outer.zip' unpacks two directories that contains the optimized molecular structures in xyz format.<br> - Inner-sphere/ for the inner-sphere complexes<br> - Outer-sphere/ for the outer-sphere complexes in their geometries I and II<br> </p>
Accurate Predictions of Volatile Plutonium Thermodynamic Properties: Dataset
<p>This dataset collects the input and output of the calculations discussed in the paper titled "Accurate Predictions of Volatile Plutonium Thermodynamic Properties", by Sophie Kervazo, Florent Réal, François Virot, André Severo Pereira Gomes and Valérie Vallet.</p> <p>The results for each atom/molecule are collected in a zip file with the following directory tree:</p> <ol> <li>geom-freq-b3lyp: inputs/outputs for B3LYP Gaussian optimization and frequency calculations (both harmonic and anharmonic)</li> <li>SO-CASPT2 <ul> <li>VTZP: inputs/outputs for VTZP SO-CASPT2 calculations</li> <li>VQZP: inputs/outputs for VQZP SO-CASPT2 calculations</li> </ul> </li> <li>2dcm <ul> <li>inp: input files for 2dcm-CCSD and 2dcm-EOM-EE and 2dcm-EOM-IP calculations</li> <li>out: output files for 2dcm-CCSD and 2dcm-EOM-EE and 2dcm-EOM-IP calculations</li> <li>xyz: XYZ geometry files</li> </ul> </li> </ol>
Data related to the article "Molecular dynamics simulations for the prediction of thermophysical properties of plutonium-based molten salts"
<p>Contains input files and data used to generate the figures of the article:</p> <p>Molecular dynamics simulations for the prediction of thermophysical properties of plutonium-based molten salts<br>(Giovanni Pireddu*, Mirella Simoes Santos*, David Lambertin, Timothée Kooyman)<br><br>*:Equal contribution</p> <p>Journal of Nuclear Materials<br>DOI: https://doi.org/10.1016/j.jnucmat.2024.155124</p> <p>The folder EXAMPLE_INPUT_FILES contains typical MetalWalls(https://doi.org/10.21105/joss.02373) (repository(https://gitlab.com/ampere2/metalwalls)) input files used to perform the molecular simulations.</p> <p>The folder DATA_FIGURES contains the processed data used to plot the figures of the paper (see below).</p> <p><br>Figure 2:<br>- 'Fig2_Density.dat' : density as a function of temperature (binary system, calculated from MD simulations)</p> <p>Figure 3:<br>- 'Fig3_HCap.dat' : heat capacity as a function of temperature (binary system, calculated from MD simulations)</p> <p>Figure 4:<br>- 'Fig4_Density.dat' : density as a function of temperature (ternary system, calculated from MD simulations)</p>
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