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1.发明授权公开(公告)号：US08194813B2
公开(公告)日：2012-06-05
申请号：US12480562
申请日：2009-06-08
IPC分类号： G01T3/00
CPC分类号： G01N23/005 , G01T3/00
摘要： A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
摘要翻译： 一种未知来源的绝对核材料测定方法，包括从未知来源计算中子，并使用模型提供绝对核材料测定，以与测量的计数分布进行最佳比较。 在一个实施方案中，提供绝对核材料测定的步骤包括利用分析计算的裂变链分布的随机抽样，以通过在时间上扩散裂变链分布来产生事件计数的连续时间演化序列。
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公开(公告)号：US20100332145A1
公开(公告)日：2010-12-30
申请号：US11925682
申请日：2007-10-26
申请人： Mark S. Rowland , Neal J. Snyderman
发明人： Mark S. Rowland , Neal J. Snyderman
CPC分类号： G01T3/00 , G01V5/0091
摘要： A neutron detector system for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. The system includes a graphing component that displays the plot of the neutron distribution from the unknown source over a Poisson distribution and a plot of neutrons due to background or environmental sources. The system further includes a known neutron source placed in proximity to the unknown source to actively interrogate the unknown source in order to accentuate differences in neutron emission from the unknown source from Poisson distributions and/or environmental sources.
摘要翻译： 一种用于区分易裂变材料和不易裂变材料的中子探测器系统，其中数字数据采集单元以高速率收集数据，并且将大量数据直接处理成第一响应者可用于区分材料的信息。 该系统包括从未知来源计算中子并检测多余的分组中子以识别未知来源中的裂变。 该系统包括绘图组件，其显示来自未知源的中子分布在泊松分布上的图和由于背景或环境来源的中子图。 该系统还包括一个已知的中子源，放置在未知源附近，以主动询问未知来源，以突出来自未知来源的中子发射与泊松分布和/或环境源的差异。
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3.发明申请公开(公告)号：US20100215138A1
公开(公告)日：2010-08-26
申请号：US12712040
申请日：2010-02-24
申请人： Mark S. Rowland , Neal J. Snyderman
发明人： Mark S. Rowland , Neal J. Snyderman
IPC分类号： G21C17/00
CPC分类号： G01T3/00 , G01T1/167 , G01V5/0091
摘要： A neutron detector system and method for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. Comparison of the observed neutron count distribution with a Poisson distribution is performed to distinguish fissile material from non-fissile material.
摘要翻译： 一种用于区分易裂变材料和不易裂变材料的中子探测器系统和方法，其中数字数据采集单元以高速率收集数据，并且将大量数据直接处理成第一响应者可用于区分材料的信息。 该系统包括从未知来源计算中子并检测多余的分组中子以识别未知来源中的裂变。 观察到的中子计数分布与泊松分布的比较是为了区分裂变材料和非易裂变材料。
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4.发明授权公开(公告)号：US08891720B2
公开(公告)日：2014-11-18
申请号：US12712040
申请日：2010-02-24
申请人： Mark S. Rowland , Neal J. Snyderman
发明人： Mark S. Rowland , Neal J. Snyderman
CPC分类号： G01T3/00 , G01T1/167 , G01V5/0091
摘要： A neutron detector system and method for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. Comparison of the observed neutron count distribution with a Poisson distribution is performed to distinguish fissile material from non-fissile material.
摘要翻译： 一种用于区分易裂变材料和不易裂变材料的中子探测器系统和方法，其中数字数据采集单元以高速率收集数据，并且将大量数据直接处理成第一响应者可用于区分材料的信息。 该系统包括从未知来源计算中子并检测多余的分组中子以识别未知来源中的裂变。 观察到的中子计数分布与泊松分布的比较是为了区分裂变材料和非易裂变材料。
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5.发明申请公开(公告)号：US20120303291A1
公开(公告)日：2012-11-29
申请号：US13456032
申请日：2012-04-25
CPC分类号： G01N23/005 , G01T3/00
摘要： A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
摘要翻译： 一种未知来源的绝对核材料测定方法，包括从未知来源计算中子，并使用模型提供绝对核材料测定，以与测量的计数分布进行最佳比较。 在一个实施方案中，提供绝对核材料测定的步骤包括利用分析计算的裂变链分布的随机抽样，以通过在时间上扩散裂变链分布来产生事件计数的连续时间演化序列。
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公开(公告)号：US08194814B2
公开(公告)日：2012-06-05
申请号：US11925682
申请日：2007-10-26
申请人： Mark S. Rowland , Neal J. Snyderman
发明人： Mark S. Rowland , Neal J. Snyderman
IPC分类号： G01T3/00
CPC分类号： G01T3/00 , G01V5/0091
摘要： A neutron detector system for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. The system includes a graphing component that displays the plot of the neutron distribution from the unknown source over a Poisson distribution and a plot of neutrons due to background or environmental sources. The system further includes a known neutron source placed in proximity to the unknown source to actively interrogate the unknown source in order to accentuate differences in neutron emission from the unknown source from Poisson distributions and/or environmental sources.
摘要翻译： 一种用于区分易裂变材料和不易裂变材料的中子探测器系统，其中数字数据采集单元以高速率收集数据，并且将大量数据直接处理成第一响应者可用于区分材料的信息。 该系统包括从未知来源计算中子并检测多余的分组中子以识别未知来源中的裂变。 该系统包括绘图组件，其显示来自未知源的中子分布在泊松分布上的图和由于背景或环境来源的中子图。 该系统还包括一个已知的中子源，放置在未知源附近，以主动询问未知来源，以突出来自未知来源的中子发射与泊松分布和/或环境源的差异。
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公开(公告)号：US08180013B2
公开(公告)日：2012-05-15
申请号：US12147374
申请日：2008-06-26
IPC分类号： G21C17/00
CPC分类号： G01N23/005 , G01T3/00
摘要： A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
摘要翻译： 一种未知来源的绝对核材料测定方法，包括从未知来源计算中子，并使用模型提供绝对核材料测定，以与测量的计数分布进行最佳比较。 在一个实施方案中，提供绝对核材料测定的步骤包括利用分析计算的裂变链分布的随机抽样，以通过在时间上扩散裂变链分布来产生事件计数的连续时间演化序列。
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公开(公告)号：US07756237B2
公开(公告)日：2010-07-13
申请号：US11244088
申请日：2005-10-04
IPC分类号： G21G1/06
CPC分类号： G01N23/005 , G01T3/00
摘要： A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
摘要翻译： 一种未知来源的绝对核材料测定方法，包括从未知来源计算中子，并使用模型提供绝对核材料测定，以与测量的计数分布进行最佳比较。 在一个实施方案中，提供绝对核材料测定的步骤包括利用分析计算的裂变链分布的随机抽样，以通过在时间上扩散裂变链分布来产生事件计数的连续时间演化序列。
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9.发明授权公开(公告)号：US09201025B2
公开(公告)日：2015-12-01
申请号：US13456032
申请日：2012-04-25
CPC分类号： G01N23/005 , G01T3/00
摘要： A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
摘要翻译： 一种未知来源的绝对核材料测定方法，包括从未知来源计算中子，并使用模型提供绝对核材料测定，以与测量的计数分布进行最佳比较。 在一个实施方案中，提供绝对核材料测定的步骤包括利用分析计算的裂变链分布的随机抽样，以通过在时间上扩散裂变链分布来产生事件计数的连续时间演化序列。
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公开(公告)号：US20120116730A1
公开(公告)日：2012-05-10
申请号：US12480562
申请日：2009-06-08
CPC分类号： G01N23/005 , G01T3/00
摘要： A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
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