Dyrcz Patrycja, Menaa Nabil, Magistris Matteo, Theis Chris, Bruno Luca, Dumont Gerald, Charousset Renaud
CERN, CH-1211 Meyrin, Switzerland.
CERN, CH-1211 Meyrin, Switzerland.
Appl Radiat Isot. 2023 Nov;201:110991. doi: 10.1016/j.apradiso.2023.110991. Epub 2023 Aug 19.
Melting of metallic waste reduces the waste volume, allows more accurate radiological characterization, and minimizes handling at the waste production site. This paper proposes a new non-destructive assay methodology to radiologically characterize low- and intermediate-level (LILW) waste before melting. A non-destructive assay technique is developed and qualified using geometry optimization technique and sample analysis after melting. Additionally, we present an operational methodology to predict the activity values of the major gamma emitters based on the average dose rate measurements.
金属废料的熔化可减少废料体积，实现更精确的放射性特征描述，并尽量减少在废料产生现场的处理操作。本文提出一种新的无损检测方法，用于在熔化之前对低中水平放射性废料（LILW）进行放射性特征描述。利用几何优化技术和熔化后的样品分析，开发并验证了一种无损检测技术。此外，我们还提出了一种基于平均剂量率测量来预测主要伽马射线发射体活度值的操作方法。
