锕系核靶制备与应用北大核心CSCD

基础核物理、核能开发、超重元素研制等领域对精确、值得信赖的核参数的需求日益增大,锕系核靶作为核数据测量实验的核心部件,其产品种类及关键质量参数的优劣直接制约核数据测量的发展水平。系统介绍了国内外锕系核靶制备及检测方法以及国内外核靶研究团队技术储备及发展方向。     

水下干式储存取样的乏燃料破损检测技术

介绍了通用的乏燃料破损检测方法, 分析了已有的乏燃料破损检测技术存在的缺陷, 针对其缺陷以及根据自身的需求设计了新的乏燃料破损检测工艺与工作流程, 并介绍了检测样品的测量及样品与乏燃料包壳状态的判断依据。 实际应用结果表明: 该技术可以在水下实现一次对一批乏燃料进行逐个取样, 每个样品对应一盒确定的乏燃料, 检测效率高; 该采样系统对乏燃料的操作在水下进行, 现场辐射防护容易满足。 In the present article, several previous methods for damage detection of spent fuel assembly, as well as the existing limitations of these methods are reviewed. A new sampling system, including the working procedure and operating schedule, was developed in order to meet the practical demands and to solve the disadvantages mentioned. The measurement method for sampling and the criterion practical results provided evidence that, in this system, each operating process could successfully achieve a sample for a single certain spent fuel assembly with high precision. Moreover, all the operations were carried out under water, which made the radiation protection much easier.