Abstract To accurately predict the initiation and evolution of uranium hydride potentially present in nuclear waste containers, studies of simulated conditions are required. Here, for the first time, the uranium-deuterium reaction was examined in-situ, in real time, whilst within grouted media. A deuterium gas control rig and stainless steel-quartz glass reaction cell were configured on a synchrotron beam line to collect X-ray diffraction and X-ray tomography data. It was found that deuteride formation was limited by the uranium and grout thermal conductivities and deuteride initiation only commenced above a threshold temperature. Strong adherence between uranium oxide and grout was also observed.

中文翻译：

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对灌浆中封装的铀进行实时、原位氘化；温度对铀-氘反应的影响

摘要 为了准确预测可能存在于核废料容器中的氢化铀的引发和演化，需要对模拟条件进行研究。在这里，铀-氘反应首次在灌浆介质中进行了原位实时检测。在同步加速器光束线上配置了一个氘气控制装置和不锈钢-石英玻璃反应池，以收集 X 射线衍射和 X 射线断层扫描数据。发现氘化物的形成受到铀和水泥浆热导率的限制，并且氘化物的引发仅在阈值温度以上才开始。还观察到氧化铀和水泥浆之间的强粘附。