This paper reports on the state-of-the-art of the main non-destructive assay (NDA) techniques usually used for in-situ radiological characterization of nuclear facilities subject to a decommissioning programme. For the sake of clarity and coherence, they have been classified as environmental radiation monitoring, surface contamination measurements, gamma spectrometry, passive neutron counting and radiation cameras. Particular mention is also made here to the various challenges that each of these techniques must currently overcome, together with the formulation of some proposals for a potential evolution in the future.

中文翻译：

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待拆除核设施原位放射性表征无损技术的最新进展和挑战

本文报告了通常用于对受退役计划约束的核设施进行原位放射性表征的主要无损检测 (NDA) 技术的最新水平。为了清晰和连贯，它们被归类为环境辐射监测、表面污染测量、伽马能谱、被动中子计数和辐射相机。这里还特别提到了这些技术中的每一种目前必须克服的各种挑战，以及为未来潜在演变制定的一些建议。