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1. 发明申请

US20080130818A1 Leak detection method for testing fuel rods of fuel assemblies of a boiling water reactor for leaks 有权
标题翻译：用于检测沸水反应堆燃料组件燃料棒泄漏的泄漏检测方法
公开(公告)号：US20080130818A1
公开(公告)日：2008-06-05
申请号：US11801939
申请日：2007-05-11
申请人： Markus Pulmanns , Richard Stark
发明人： Markus Pulmanns , Richard Stark
IPC分类号： G21C17/07
CPC分类号： G21C17/04 , G21C17/06 , G21C17/07 , G21Y2002/202 , G21Y2002/40 , G21Y2004/40
摘要： Fuel rods of fuel assemblies of a boiling water reactor are tested for leaks. A plurality of fuel assemblies are each arranged adjacent to one another in a cell of the upper core grid of the boiling water reactor. A hood is placed above the fuel assemblies of a plurality of cells, which form a division for simultaneously heating the fuel assemblies of this division. At least one water sample is taken from each cell of this division, and the water samples from a plurality of cells forming a group are combined and tested for the presence of radioactive fission products contained in the water sample. A plurality of groups are analyzed simultaneously and independently of one another in a number, which number corresponds to the number of groups, of measurement channels of an analysis device. Where a result of a group is positive, the water samples from the cells which are located in this group are fed separately to the analysis device and are analyzed separately in a corresponding number of measurement channels. Those fuel assemblies of a cell that are found positive are tested individually outside the hood.
摘要翻译：测试沸水反应堆的燃料组件的燃料棒的泄漏。多个燃料组件各自相邻布置在沸水反应堆的上部核心格栅的电池中。将发动机罩放置在多个电池的燃料组件上方，形成用于同时加热该部分的燃料组件的分隔件。从该分区的每个细胞中取出至少一个水样品，并且组合来自形成组的多个细胞的水样品，并测试水样中包含的放射性裂变产物的存在。多个组被分析同时且彼此独立地分析，数量对应于分析装置的测量通道的组数。当组的结果为正时，来自位于该组中的单元的水样本被单独地供给到分析装置，并在相应数量的测量通道中单独分析。发现阳性的细胞的那些燃料组件在罩外单独测试。

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