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    System For Active Long Range Detection And Identification Of Special Nuclear Materials Using A High Intensity Particle Beam
    1.
    发明申请
    System For Active Long Range Detection And Identification Of Special Nuclear Materials Using A High Intensity Particle Beam 审中-公开
    使用高强度粒子束主动长距离检测和识别特殊核材料的系统

    公开(公告)号：US20160187270A1

    公开(公告)日：2016-06-30

    申请号：US15015346

    申请日：2016-02-04

    申请人： Brookhaven Science Associates, LLC

    发明人： Istvan Dioszegi ,  Leon Forman ,  Peter E. Vanier ,  Cynthia A. Salwen

    IPC分类号： G01N23/222 ,  G21G1/08

    CPC分类号： G01N23/222 ,  G21G1/08

    摘要： A long-range method and a system for reliably detecting and identifying special nuclear materials is provided that relies on the emission of delayed neutrons present in the decay of fission products (delayed neutron precursors) as a unique signature for the special nuclear materials, such as highly enriched uranium (235/238U). The method relies on a time-of-flight measurement in the first 1 μs after the inducing radiation pulse, and pulse height data analysis for both neutrons and gamma rays that can be done at a much higher data rate than in traditional pulse processing systems. The thermal neutron fission within the time regime of 100-500 μs provides a unique signature of special nuclear materials such as the highly enriched uranium.

    摘要翻译： 提供了一种远程方法和可靠地检测和识别特殊核材料的系统，其依赖于存在于裂变产物（延迟中子前体）衰变中的延迟中子的排放作为特殊核材料的独特签名，例如 高浓铀（235 / 238U）。 该方法依赖于在诱导辐射脉冲之后的前1μs内的飞行时间测量，以及可以以比传统脉冲处理系统高得多的数据速率进行的中子和伽马射线的脉冲高度数据分析。 在100-500μs的时间范围内的热中子裂变提供了特殊核材料（如高浓缩铀）的独特签名。