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<p>This study investigates the morphological signature of uranium oxides produced from calcined uranium metal and compares them to those synthesized through conventional precipitation routes. Samples were oxidized at 500–900&#xa0;°C under both dry and humid conditions and analyzed using XRD and SEM. Morphological features were extracted and classified using convolutional neural networks. The calcined uranium metal products displayed distinct morphological characteristics, enabling high classification accuracy and clear differentiation from other U₃O₈ forms. These findings introduce a novel morphological signature for uranium metal oxidation products, expanding the forensic tools available for source attribution in nuclear materials analysis.</p>

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Morphological signatures of U-oxides produced from the high-temperature firing of U-metals

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • Logan Gibb,
  • Brandon Chung,
  • Michael Simpson,
  • Luther W. McDonald

摘要

This study investigates the morphological signature of uranium oxides produced from calcined uranium metal and compares them to those synthesized through conventional precipitation routes. Samples were oxidized at 500–900 °C under both dry and humid conditions and analyzed using XRD and SEM. Morphological features were extracted and classified using convolutional neural networks. The calcined uranium metal products displayed distinct morphological characteristics, enabling high classification accuracy and clear differentiation from other U₃O₈ forms. These findings introduce a novel morphological signature for uranium metal oxidation products, expanding the forensic tools available for source attribution in nuclear materials analysis.