Using external ion irradiations for simulating self-irradiation damage in nuclear waste glasses: State of the art, recommendations and, prospects
Using external ion irradiations for simulating self-irradiation damage in nuclear waste glasses: State of the art, recommendations and, prospects
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DOI：
10.1016/j.jnucmat.2020.152246
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发表时间：
2020-10
影响因子：
3.1
通讯作者：
A. H. Mir;S. Peuget
中科院分区：
文献类型：
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作者：
A. H. Mir;S. Peuget
由于处理和表征核废料等放射性物质的辐射损伤的复杂性，离子辐照已被广泛用于模拟自照射损伤的效应。这通常涉及使用离子加速器对核废料替代玻璃进行离子辐照。这样的设施允许使用从氢到铀的各种离子类型，以及从几十keV到数百MeV的能量。由于各种原因，研究人员经常不得不使用不一定符合实际核废料形式的离子和能量。由于缺乏详细和专门的研究，目前没有关于使用离子辐照作为模拟自照射损伤的手段的指导方针或共识。本文的目的是通过对过去十年左右进行的一些眼镜的系统研究来深入研究这一主题。通过这样做，提供了指导方针和易于遵循的离子质量Vs离子能量等高线图，以最好地模拟核废料形式的长期辐射损伤。我们还讨论了如何利用不同质量和能量的离子进行缺陷修复，并提供了对这一主题进行系统研究的路线图。为简洁起见，本文将在结尾处对重要结果和指导原则进行快速总结。除了核废料社区，这项研究也引起了广泛的研究社区的兴趣，这些研究社区处理用于核反应堆、退役和空间应用等辐射环境中的玻璃的缺陷形成和缺陷愈合。
Due to the complexities associated with handling and characterizing the radiation damage in radioactive materials such as nuclear waste forms, ion irradiation has been widely used to simulate the effects of the self-irradiation damage. This often involves ion irradiation of nuclear waste surrogate glasses using ion accelerators. Such facilities allow using a wide range of ion types ranging from H to U and energies from tens of keV to hundreds of MeV. For various reasons, the researchers often have to use ions and energies that do not necessarily match with what is expected in actual nuclear waste forms. Due to a lack of detailed and dedicated studies, there are currently no guidelines or consensus regarding the use of the ion irradiation as a means of simulating the self-irradiation damage. The purpose of this article is to delve into this subject by presenting systematic studies of a number of glasses carried out in the last decade or so. By doing so, guidelines and easy to follow ion-mass Vs ion energy contour maps are provided to best simulate the long-term radiation damage in nuclear waste forms. We also discuss how the ions of different masses and energies can be exploited for defect healing and provide a roadmap to undertake systematic studies on this subject. For the sake of brevity, a quick summary of the important results and the guidelines is presented towards the end of this article and not here. Besides the nuclear waste community, the study is also of interest to a wide research community dealing with defect formation and defect healing in glasses for use in radiation environments experienced in nuclear reactors, decommissioning and space applications to name a few.