Lattice parameters of (U, Pu, Am, Np)O2−x |
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| Authors: | Masato Kato Kenji Konashi |
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| Affiliation: | a Fuel Technology R&D Section, Nuclear Fuel Cycle Engineering Laboratories, Japan Atomic Energy Agency, 4-33, Muramatsu, Tokai-mura, Naka-gun, Ibaraki 319-1194, Japan
b Tohoku University, 2145-2, Narita, Oarai-machi, Ibaraki 311-1313, Japan |
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| Abstract: | The solid solutions of (U1−z−y’−y”PuzAmy’Npy”)O2−x (z = 0-1, y’ = 0-0.12, y” = 0-0.07) were investigated by X-ray diffraction measurements, and a database for the lattice parameters was updated. A model to calculate the lattice parameters was derived from the database. The radii of the ions present in the fluorite structure of (U, Pu, Am, Np)O2−x were estimated from the lattice parameters measured in this work. The model represented the experimental data within a standard deviation of σ = ±0.025%. |
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