A new sample stage for characterizing radioactive materials by X‐ray powder diffraction was developed at the ATALANTE facility (CEA Marcoule, France) using a conventional (non‐nuclearized) Bruker D8 goniometer mounted in Bragg–Brentano geometry. The setup consists of a removable, fully hermetic sample stage, with a 200 µm‐thick beryllium window, that can be plugged onto a glove‐box, allowing the sample to be introduced in an hermetic medium that also encapsulates the glove‐box atmosphere throughout the analysis process. The whole setup is thus hermetically unplugged from the glove‐box and positioned on the centre of the goniometer. No preliminary decontamination and/or decontainment of the sample is necessary. The device was developed to avoid an expensive and time‐consuming nuclearization of the diffractometer while also keeping it easily accessible for maintenance. Ultimately, keeping the diffractometer out of a glove‐box also limits the volume of the final nuclear wastes, and thus the removable sample stage is the only `active' part. X‐ray diffraction results of two NIST standards LaB₆ and α‐Al₂O₃ as well as five actinide dioxides ThO₂, UO₂, NpO₂, PuO₂ and AmO₂ are presented to show the efficiency of the setup.

中文翻译：

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通过X射线粉末衍射表征放射性物质的新样品台：在五种act系元素二氧化钛ThO2，UO2，NpO2，PuO2和AmO2上的应用

ATALANTE工厂（法国CEA Marcoule）使用安装在Bragg-Brentano几何结构上的常规（非核化）Bruker D8测角仪，开发了一种用于X射线粉末衍射表征放射性物质的新样品台。该装置包括一个可移动的，完全密封的样品台，以及一个200 µm厚的铍窗，可以将其插入杂物箱中，从而将样品引入一种密封介质中，该密封介质还封装了整个杂物箱中的气氛。分析过程。因此，整个装置从手套箱中密封拔出，并位于测角仪的中央。无需对样品进行初步净化和/或净化。该设备的开发避免了衍射仪昂贵且费时的核化，同时还使其易于维护。最终，将衍射仪放在手套箱内也会限制最终核废料的体积，因此可移动样品台是唯一的“活跃”部分。两种NIST标准LaB的X射线衍射结果₆和的α-Al ₂ ö ₃以及5锕系氧化钛的ThO ₂，UO ₂，NPO ₂，的PuO ₂和AMO ₂被呈现，以显示设置的效率。