【作者】 孙淑义； 雷胤琦； 张正宏； 吕亮亮； 高旭东； 江鹏； 丁宝卫； 李公平；

【机构】 兰州大学核科学与技术学院；

【摘要】 乏燃料后处理是核燃料循环过程中一个重要的阶段,回收利用铀钚等同位素,提高其利用率是该阶段的重要环节。目前铀溶液在线监测技术比较完善,但是对钚溶液的在线监测研究较少。本文模拟设计了一套钚浓度在线监测装置,利用Geant4等程序验证自发X射线法的可行性,考虑到钚作为重点管控同位素,本研究采用X射线源激发铀这一系统代替钚从而实现实验室内的测量验证,并对相关结构给出合理的参数,对钚浓度在线测量装置的研制和优化具有一定的指导意义。更多还原

【Abstract】 Post-fuel treatment is an important stage in the nuclear fuel cycle process, and the recovery and utilization of isotopes such as uranium and plutonium to improve their utilization rate is a crucial aspect of this stage. Currently, the technology for online uranium measurement is relatively mature, but there is little research on online monitoring of plutonium solutions. In this study, we simulated and designed a plutonium concentration online monitoring device, verified the feasibility of spontaneous X-ray method using programs such as Geant4, and used X-ray source to excite uranium instead of plutonium for measurement verification in the laboratory, and provided reasonable parameters for the relevant structure. The development and optimization of the plutonium concentration online measurement device have certain guiding significance.更多还原