Abstract

A sample containing microparticles of two different uranium materials with distinct uranium isotopic compositions was analyzed during an international experiment. Mass spectrometric analysis of 25 particles revealed that, within the measurement error, six particles had an isotopic composition consistent with that of the first material, and three particles were consistent with the second material. However, the uranium isotopic composition of the remaining 16 particles did not match either of the known materials. This indicates that the preliminary examination of uranium microparticles by scanning electron microscopy can identify particles carrying information about the isotopic composition of the source materials.

中文翻译：

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使用扫描电子显微镜提高铀微粒质谱分析的准确性

 抽象

在一项国际实验中分析了含有两种不同铀材料微粒的样品，这些材料具有不同的铀同位素组成。对 25 个颗粒的质谱分析表明，在测量误差范围内，6 个颗粒的同位素组成与第一种材料一致，3 个颗粒与第二种材料一致。然而，其余 16 个颗粒的铀同位素组成与任何一种已知材料都不匹配。这表明通过扫描电子显微镜对铀微粒进行初步检查可以识别携带有关源材料同位素组成信息的颗粒。