Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, 215000, China.
Appl Radiat Isot. 2022 Dec;190:110482. doi: 10.1016/j.apradiso.2022.110482. Epub 2022 Sep 24.
In this work, prompt gamma ray neutron activation analysis technique was used to monitor the REEs saturation in resin. A facility consisted of a D-T neutron generator, a BGO detector and a He detector was established and applied to analyze REEs (Gd and Sm) samples. Neutron self-shielding effect was also corrected. The enriched Gd and Sm in resin were close to saturation at about 400 min. The results showed a satisfactory agreement with the XRF tests, which demonstrated that PGNAA was sufficient for monitoring REEs saturation in resin.
在这项工作中，使用了瞬发伽马射线中子活化分析技术来监测树脂中 REEs 的饱和情况。建立并应用了一个由 D-T 中子发生器、BGO 探测器和 He 探测器组成的设备来分析 REEs（Gd 和 Sm）样品。还校正了中子自屏蔽效应。树脂中富集的 Gd 和 Sm 接近饱和，约为 400 分钟。结果与 XRF 测试吻合较好，表明 PGNAA 足以监测树脂中 REEs 的饱和情况。
