In the framework of maintenance activities in particle accelerators, such as upgrades and dismantling, a large number of activated equipment are removed from the accelerator complex and require characterization in view of their disposal as radioactive waste. In particular, cables can be of different types. This feature induces variations of the efficiency calibration curves due to the variation of the material composition, source distribution and density. Hence, quantifying the activities of the gamma-emitting radionuclides can be quite challenging for mixed cables. In this article, we propose a new qualification methodology, based on gamma spectrometry, in order to assess the activity results uncertainties of gamma-emitting radionuclides. This new methodology is developed to define the envelop efficiency calibration curves and allows for the establishment of more accurate activity values with their corresponding uncertainties.

在粒子加速器的维护活动（例如升级和拆卸）的框架内，大量的活化设备从加速器综合体中移出，鉴于其作为放射性废物的处置而需要表征。特别地，电缆可以是不同类型的。由于材料成分，源分布和密度的变化，该特征引起效率校准曲线的变化。因此，对于混合电缆而言，量化发射伽玛射线的放射性核素的活性可能非常困难。在本文中，我们提出了一种基于伽马能谱的新鉴定方法，以评估发射伽马射线放射性核素的活动结果不确定性。