公开(公告)号：US20170178312A1

公开(公告)日：2017-06-22

申请号：US15278101

申请日：2016-09-28

申请人： Tsinghua University ,  NUCTECH COMPANY LIMITED

发明人： Yuanjing LI ,  Ziran ZHAO ,  Yaohong LIU ,  Qili WANG ,  Qiang LI ,  Jianping GU

IPC分类号： G06T7/00 ,  G06T7/40

CPC分类号： G06T7/0004 ,  G01N23/04 ,  G01N2223/401 ,  G01N2223/626 ,  G06K9/48 ,  G06T7/0085 ,  G06T7/13 ,  G06T7/40 ,  G06T2207/10116

摘要： The present disclosure provides a method and a system for inspecting goods. The method comprises steps of: obtaining a transmission image of inspected goods; processing the transmission image to obtain a suspicious region; extracting local texture features of the suspicious region and classifying the local texture features of the suspicious region based on a pre-created model to obtain a classification result; extracting a contour line shape feature of the suspicious region and comparing the contour line shape feature with a pre-created standard template to obtain a comparison result; and determining that the suspicious region contains a high atomic number matter based on the classification result and the comparison result.

公开(公告)号：US09205463B2

公开(公告)日：2015-12-08

申请号：US14238158

申请日：2012-08-22

申请人： Christopher P. J. Barty

发明人： Christopher P. J. Barty

IPC分类号： G01N23/00 ,  B07C5/34 ,  G01N23/221 ,  G01N23/10 ,  G01V5/00 ,  G01N23/06 ,  H05G2/00

CPC分类号： G01F1/7042 ,  B07C5/3416 ,  B07C5/346 ,  G01N23/095 ,  G01N23/10 ,  G01N23/221 ,  G01N2223/043 ,  G01N2223/074 ,  G01N2223/626 ,  G01N2223/639 ,  G01V5/0069 ,  G01V5/0091 ,  H05G2/00

摘要： A laser-based mono-energetic gamma-ray source is used to provide a rapid and unique, isotope specific method for sorting materials. The objects to be sorted are passed on a conveyor in front of a MEGa-ray beam which has been tuned to the nuclear resonance fluorescence transition of the desired material. As the material containing the desired isotope traverses the beam, a reduction in the transmitted MEGa-ray beam occurs. Alternately, the laser-based mono-energetic gamma-ray source is used to provide non-destructive and non-intrusive, quantitative determination of the absolute amount of a specific isotope contained within pipe as part of a moving fluid or quasi-fluid material stream.

摘要翻译： 基于激光的单能伽马射线源用于提供用于分选材料的快速和独特的同位素特异性方法。 要分选的物体在已经调谐到所需材料的核共振荧光转变的MEGa射线束前面的输送机上通过。 由于含有所需同位素的材料穿过光束，所以发射的MEGa射线束的发生减少。 或者，基于激光的单能伽马射线源用于提供非破坏性和非侵入性的定量测定管内包含的特定同位素的绝对量，作为移动流体或准液体材料流的一部分 。

公开(公告)号：US20140332685A1

公开(公告)日：2014-11-13

申请号：US14124504

申请日：2012-06-07

申请人： Vinicius Anghel ,  Guy Jonkmans ,  Cybele Jewett ,  Martin Thompson

发明人： Vinicius Anghel ,  Guy Jonkmans ,  Cybele Jewett ,  Martin Thompson

IPC分类号： G01V5/00 ,  H01J37/252

CPC分类号： G01V5/0025 ,  G01N23/046 ,  G01N23/20 ,  G01N2223/419 ,  G01N2223/626 ,  G01V5/005 ,  G01V5/0066 ,  G01V5/0091 ,  H01J37/252

摘要： A method is proposed herein to detect high atomic number materials, such as Special Nuclear Materials, within a container based on muon tomography. The container is modeled as a plurality of volume elements. Information related to an initial trajectory and a final trajectory of each muon passing through the container is received. Additionally, a set of initial outer prong vectors and a set of final outer prong vectors are created. Then, a plurality of vector combinations are created from a selected initial vector and a selected final vector. A metric is determined and associated with each vector combination. A subset of the plurality of vector combinations is associated with each volume element and an estimated scattering density is determined and assigned to the volume element. Based on the estimated scattering density assigned to the volume elements, a three dimensional image of the container may be generated.

摘要翻译： 本文提出了一种在基于μ子层析成像的容器内检测高原子序列材料（如特殊核材料）的方法。 容器被建模为多个体积元件。 接收与通过容器的每个μ子的初始轨迹和最终轨迹相关的信息。 另外，创建了一组初始的外侧插脚矢量和一组最终的外部叉形矢量。 然后，从所选择的初始向量和所选择的最终向量创建多个向量组合。 确定度量并与每个向量组合相关联。 多个向量组合的子集与每个体积元素相关联，并且确定估计的散射密度并将其分配给体积元素。 基于分配给体积元素的估计散射密度，可以产生容器的三维图像。

公开(公告)号：US20160161315A1

公开(公告)日：2016-06-09

申请号：US14961807

申请日：2015-12-07

申请人： Lawrence Livermore National Security, LLC

发明人： Christopher P. J. Barty ,  John C. Post ,  Edwin Jones

IPC分类号： G01F1/704 ,  G01V5/00

CPC分类号： G01F1/7042 ,  B07C5/3416 ,  B07C5/346 ,  G01N23/095 ,  G01N23/10 ,  G01N23/221 ,  G01N2223/043 ,  G01N2223/074 ,  G01N2223/626 ,  G01N2223/639 ,  G01V5/0069 ,  G01V5/0091 ,  H05G2/00

摘要： A laser-based mono-energetic gamma-ray source is used to provide non-destructive and non-intrusive, quantitative determination of the absolute amount of a specific isotope contained within pipe as part of a moving fluid or quasi-fluid material stream.

摘要翻译： 使用基于激光的单能伽马射线源来提供非破坏性和非侵入性的定量测定作为移动流体或准液体材料流的一部分的管内特定同位素的绝对量。

公开(公告)号：US09158011B2

公开(公告)日：2015-10-13

申请号：US13877404

申请日：2011-10-07

申请人： Nicolas Saurel

发明人： Nicolas Saurel

IPC分类号： G01T1/24

CPC分类号： G01T1/24 ,  G01N2223/626 ,  G01T7/00

摘要： A system for in situ nuclear measurement of alpha radiation of an effluent and a related method. The system includes: M diamond semiconductor detectors obtained by chemical vapor deposition, or silicon semiconductor detectors covered with a diamond layer, as alpha radiation detectors, configured to be immersed in the effluent, and to measure alpha radiation emitted by the effluent, M is an integer greater than or equal to 1; P measuring channels connected to the M alpha radiation detectors, P is an integer greater than or equal to 1 and less than or equal to M, each of the P measuring channels configured to provide a value or a sum of alpha activity values from the M alpha radiation detectors to which they are connected; and, if P is greater than 1, a mechanism for adding together results from the P measuring channels.

摘要翻译： 一种流出物的α辐射原位核测量系统及相关方法。 该系统包括：通过化学气相沉积获得的M个金刚石半导体检测器或覆盖有金刚石层的硅半导体检测器，被配置为浸入流出物中的α辐射检测器，以及测量流出物发射的α辐射，M是 整数大于或等于1; P测量通道连接到Mα辐射检测器，P是大于或等于1且小于或等于M的整数，每个P测量通道被配置为提供来自M的α活度值的值或总和 它们连接的α辐射探测器; 并且如果P大于1，则用于将来自P个测量通道的结果相加的机制。

公开(公告)号：US20140303932A1

公开(公告)日：2014-10-09

申请号：US14353750

申请日：2012-11-23

申请人： Kromek Limited

发明人： Stephen Whitaker SNOW ,  Ian Radley

IPC分类号： G01J3/28

CPC分类号： G01J3/28 ,  G01N23/06 ,  G01N2223/345 ,  G01N2223/618 ,  G01N2223/626

摘要： A method is described for the combined processing of spectral data from a plurality of radiation detectors (4,6), in particular with a plurality of response functions, comprising: obtaining a response matrix for each detector (4,6); collecting data from radiation incident at each detector (4,6); producing a spectral histogram for the collected data from each detector (4,6); deconvoluting the histograms from each detector by applying a suitable numerical deconvolution such as a Bayesian deconvolution that makes use of the response matrix for each detector to derive a single spectral histogram that representatively combines information from the plurality of detectors. An apparatus, such as a hybrid detector apparatus, to which the method can be applied is also described.

摘要翻译： 描述了用于对来自多个辐射检测器（4,6）的光谱数据进行组合处理的方法，特别是与多个响应函数，其包括：获得每个检测器（4,6）的响应矩阵; 从每个检测器（4,6）入射的辐射收集数据; 产生来自每个检测器的收集数据的光谱直方图（4,6）; 通过应用合适的数字解卷积（例如贝叶斯去卷积）对来自每个检测器的直方图进行解卷积，其使用每个检测器的响应矩阵来导出代表性地组合来自多个检测器的信息的单个频谱直方图。 还描述了可以应用该方法的装置，例如混合式检测器装置。

公开(公告)号：US20130200267A1

公开(公告)日：2013-08-08

申请号：US13877404

申请日：2011-10-07

申请人： Nicolas Saurel

发明人： Nicolas Saurel

IPC分类号： G01T1/24

CPC分类号： G01T1/24 ,  G01N2223/626 ,  G01T7/00

摘要： A system for in situ nuclear measurement of alpha radiation of an effluent and a related method. The system includes: M diamond semiconductor detectors obtained by chemical vapour deposition, or silicon semiconductor detectors covered with a diamond layer, as alpha radiation detectors, configured to be immersed in the effluent, and to measure alpha radiation emitted by the effluent, M is an integer greater than or equal to 1; P measuring channels connected to the M alpha radiation detectors, P is an integer greater than or equal to 1 and less than or equal to M, each of the P measuring channels configured to provide a value or a sum of alpha activity values from the M alpha radiation detectors to which they are connected; and, if P is greater than 1, a mechanism for adding together results from the P measuring channels.

摘要翻译： 一种流出物的α辐射原位核测量系统及相关方法。 该系统包括：通过化学气相沉积获得的M个金刚石半导体检测器或覆盖有金刚石层的硅半导体检测器，被配置为浸入流出物中的α辐射检测器，以及测量流出物发射的α辐射，M是 整数大于或等于1; P测量通道连接到Mα辐射检测器，P是大于或等于1且小于或等于M的整数，每个P测量通道被配置为提供来自M的α活度值的值或总和 它们连接的α辐射探测器; 并且如果P大于1，则用于将来自P个测量通道的结果相加的机制。

公开(公告)号：US20120256094A1

公开(公告)日：2012-10-11

申请号：US13441242

申请日：2012-04-06

申请人： SARA POZZI ,  Shaun Clarke ,  Marek Flaska ,  Alexis Poitrasson-Riviere ,  Kyle Polack ,  Kiyotaka Ide

发明人： SARA POZZI ,  Shaun Clarke ,  Marek Flaska ,  Alexis Poitrasson-Riviere ,  Kyle Polack ,  Kiyotaka Ide

IPC分类号： G01N23/05 ,  G01T1/16 ,  G01T1/20

CPC分类号： G01V5/0091 ,  G01N2223/045 ,  G01N2223/1013 ,  G01N2223/1063 ,  G01N2223/626

摘要： A dual-particle imaging system of the present teachings provide for standoff, passive detection of special nuclear material. In some embodiments, the system comprises three detector planes that together are capable of imaging both photons and fast neutrons. The ability of the system to detect fast neutrons makes it more difficult to effectively shield a threat source.

摘要翻译： 本教导的双粒子成像系统提供特殊核材料的间隔，被动检测。 在一些实施例中，该系统包括三个检测器平面，它们一起能够成像光子和快中子两者。 系统检测快中子的能力使得更难有效地屏蔽威胁源。

公开(公告)号：US20100046707A1

公开(公告)日：2010-02-25

申请号：US12194701

申请日：2008-08-20

申请人： Geoffrey HARDING

发明人： Geoffrey HARDING

IPC分类号： G01N23/20

CPC分类号： G01N23/2055 ,  G01N2223/626

摘要： Method and system for distinguishing a special nuclear material from a non-threat, high-density metal using X-ray Diffraction. In one embodiment, an X-ray image of an object is examined to detect those voxels having intense XRD profiles, indicating the presence of a high-Z metal. Second, the XRD profiles of such voxels are examined to find the widths and positions of any bands of momentum that are empty of Bragg diffraction peaks. If no such bands are found, then each XRD profile is uniformly populated with Bragg peaks; and it is determined that a special nuclear material is present. If such bands are found, then at least one XRD profile is not uniformly populated with Bragg peaks; and it is determined that a non-threat, high-Z metal is present.

摘要翻译： 使用X射线衍射区分特殊核材料与非威胁高密度金属的方法和系统。 在一个实施例中，检查对象的X射线图像以检测具有强X射线轮廓的那些体素，指示存在高Z金属。 第二，检查这些体素的X射线轮廓，找出布拉格衍射峰空的任何动量波段的宽度和位置。 如果没有发现这样的带，则每个XRD曲线均匀地用布拉格峰填充; 并确定存在特殊的核材料。 如果发现这种频带，那么至少一个XRD谱不能用布拉格峰均匀地填充; 并且确定存在非威胁的高Z金属。

公开(公告)号：US07541590B2

公开(公告)日：2009-06-02

申请号：US11777860

申请日：2007-07-13

申请人： Stephen Croft ,  Susan C. Kane ,  Patty McClay ,  Robert D. McElroy, Jr. ,  Wilhelm F. Mueller ,  Marcel F. Villani

发明人： Stephen Croft ,  Susan C. Kane ,  Patty McClay ,  Robert D. McElroy, Jr. ,  Wilhelm F. Mueller ,  Marcel F. Villani

IPC分类号： G01T1/164

CPC分类号： G01T1/167 ,  G01N23/06 ,  G01N2223/1013 ,  G01N2223/424 ,  G01N2223/626

摘要： A method for automating and extending the density range for gamma ray attenuation correction algorithms for all classes of non-destructive assay systems including those without automated shutters or automated collimators. A system and software for implementing the method are also provided. The system features a dual-intensity transmission source and utilizes a three pass scanning protocol. The high-energy source in conjunction with a beam modulator produces a high and low energy beam. Automated software determines which beam data to use in tomographic reconstruction of an object being scanned.

摘要翻译： 一种用于自动化和扩展所有类别的非破坏性测定系统的伽马射线衰减校正算法的密度范围的方法，包括没有自动快门或自动准直仪的那些。 还提供了一种用于实现该方法的系统和软件。 该系统具有双强度传输源，并采用三通扫描协议。 结合光束调制器的高能源产生高能量和低能量的光束。 自动软件确定在被扫描对象的断层重建中使用哪些波束数据。