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K边界密度计用于测量乏燃料后处理首端溶解液中重元素的浓度,基于K边界测量和X荧光检测技术相结合的工作原理,经验证该方法的测量精确度与DA分析技术相当,但速度更快操作更简单。装置包括一套自动控制系统,一套X射线发生装置,用于透射和激发溶液中被测元素;两台平面型高纯锗探测器,分别用于测量K吸收边界的能谱和X荧光能谱;两套数字化多道能谱仪,
K boundary densitometer is used to measure the concentrations of heavy elements in the head-end solution of spent fuel reprocessing. Based on the principle of K-boundary measurement and X-fluorescence detection, the measurement accuracy of this method is equivalent to DA analysis, But faster operation is easier. The device comprises an automatic control system, an X-ray generating device for transmitting and exciting the measured elements in the solution, two planar high-purity germanium detectors for measuring the energy spectrum of the K absorption boundary and the X-fluorescence energy Spectrum; two sets of digital multi-channel spectrometer,