Integrated Primary and Special Nuclear Material Alarm Resolution

    公开(公告)号:US20200025955A1

    公开(公告)日:2020-01-23

    申请号:US16221132

    申请日:2018-12-14

    IPC分类号: G01T3/00 G01V5/00

    摘要: The present specification discloses methods for inspecting an object. The method includes scanning an object in a two-step process. In the primary scan, a truck or cargo container (container) is completely scanned with a fan beam radiation, the transmitted radiation is measured with an array of detectors, and the transmission information and optionally the fission signatures are analyzed to determine the presence of high-density, high-Z and fissionable materials. If the container alarms in one or more areas, the areas are subjected to a secondary scan. This is done by precisely repositioning the container to the location of the suspect areas, adjusting the scanning system to focus on the suspect areas, performing a stationary irradiation of the areas, and analyzing the measured feature signatures to clear or confirm the presence of SNM.

    High-Energy X-Ray-Spectroscopy-Based Inspection System and Methods to Determine the Atomic Number of Materials
    2.
    发明申请
    High-Energy X-Ray-Spectroscopy-Based Inspection System and Methods to Determine the Atomic Number of Materials 有权
    高能X射线光谱检测系统及确定材料原子数的方法

    公开(公告)号:US20140341341A1

    公开(公告)日:2014-11-20

    申请号:US14268128

    申请日:2014-05-02

    IPC分类号: G01N23/087 G01N23/203

    摘要: The application discloses systems and methods for X-ray scanning for identifying material composition of an object being scanned. The system includes at least one X-ray source for projecting an X-ray beam on the object, where at least a portion of the projected X-ray beam is transmitted through the object, and an array of detectors for measuring energy spectra of the transmitted X-rays. The measured energy spectra are used to determine atomic number of the object for identifying the material composition of the object. The X-ray scanning system may also have an array of collimated high energy backscattered X-ray detectors for measuring the energy spectrum of X-rays scattered by the object at an angle greater than 90 degrees, where the measured energy spectrum is used in conjunction with the transmission energy spectrum to determine atomic numbers of the object for identifying the material composition of the object.

    摘要翻译: 本申请公开了用于识别被扫描物体的材料组成的用于X射线扫描的系统和方法。 该系统包括至少一个用于在物体上投射X射线束的X射线源,其中投影的X射线束的至少一部分透射穿过物体,以及用于测量所述X射线束的能量谱的检测器阵列 透射X射线。 测量的能谱用于确定物体的原子序号,用于识别物体的材料组成。 X射线扫描系统还可以具有准直的高能量背散射X射线检测器阵列,用于以大于90度的角度测量由物体散射的X射线的能谱,其中测量的能谱结合使用 用传输能谱来确定用于识别物体的材料组成的物体的原子序号。

    Integrated primary and special nuclear material alarm resolution

    公开(公告)号:US10393915B2

    公开(公告)日:2019-08-27

    申请号:US14274542

    申请日:2014-05-09

    IPC分类号: G01V5/00 G01T3/00 G01T3/06

    摘要: The present specification discloses methods for inspecting an object. The method includes scanning an object in a two-step process. In the primary scan, a truck or cargo container (container) is completely scanned with a fan beam radiation, the transmitted radiation is measured with an array of detectors, and the transmission information and optionally the fission signatures are analyzed to determine the presence of high-density, high-Z and fissionable materials. If the container alarms in one or more areas, the areas are subjected to a secondary scan. This is done by precisely repositioning the container to the location of the suspect areas, adjusting the scanning system to focus on the suspect areas, performing a stationary irradiation of the areas, and analyzing the measured feature signatures to clear or confirm the presence of SNM.

    Composite gamma-neutron detection system
    4.
    发明授权
    Composite gamma-neutron detection system 有权
    复合γ中子检测系统

    公开(公告)号:US08963094B2

    公开(公告)日:2015-02-24

    申请号:US13753458

    申请日:2013-01-29

    IPC分类号: G01T1/164

    摘要: The present invention provides a gamma-neutron detector based on mixtures of thermal neutron absorbers that produce heavy-particle emission following thermal capture. In one configuration, B-10 based detector is used in a parallel electrode plate geometry that integrates neutron moderating sheets, such as polyethylene, on the back of the electrode plates to thermalize the neutrons and then detect them with high efficiency. The moderator can also be replaced with plastic scintillator sheets viewed with a large area photomultiplier tube to detect gamma-rays as well. The detector can be used in several scanning configurations including portal, drive-through, drive-by, handheld and backpack, etc.

    摘要翻译: 本发明提供了一种基于热中子吸收剂的混合物的γ中子检测器,其在热捕获之后产生重粒子发射。 在一种配置中,基于B-10的检测器用于平行电极板几何形状,其将中子调节片(例如聚乙烯)集成在电极板的背面上,以使中子热化,然后以高效率进行检测。 调节剂也可以用用大面积光电倍增管观察的塑料闪烁体片替代,以检测伽马射线。 检测器可用于多种扫描配置,包括门禁,驱动器,驱动器,手持和背包等。

    Composite Gamma-Neutron Detection System
    6.
    发明申请
    Composite Gamma-Neutron Detection System 有权
    复合伽玛中子检测系统

    公开(公告)号:US20160091618A1

    公开(公告)日:2016-03-31

    申请号:US14597129

    申请日:2015-01-14

    摘要: The present invention provides a gamma-neutron detector based on mixtures of thermal neutron absorbers that produce heavy-particle emission following thermal capture. In one configuration, B-10 based detector is used in a parallel electrode plate geometry that integrates neutron moderating sheets, such as polyethylene, on the back of the electrode plates to thermalize the neutrons and then detect them with high efficiency. The moderator can also be replaced with plastic scintillator sheets viewed with a large area photomultiplier tube to detect gamma-rays as well. The detector can be used in several scanning configurations including portal, drive-through, drive-by, handheld and backpack, etc.

    摘要翻译: 本发明提供了一种基于热中子吸收剂的混合物的γ中子检测器,其在热捕获之后产生重粒子发射。 在一种配置中,基于B-10的检测器用于平行电极板几何形状,其将中子调节片(例如聚乙烯)集成在电极板的背面上,以使中子热化,然后以高效率进行检测。 调节剂也可以用用大面积光电倍增管观察的塑料闪烁体片替代,以检测伽马射线。 检测器可用于多种扫描配置,包括门禁,驱动器,驱动器,手持和背包等。

    LOW-DOSE RADIOGRAPHIC IMAGING SYSTEM
    7.
    发明申请
    LOW-DOSE RADIOGRAPHIC IMAGING SYSTEM 有权
    低剂量放射成像系统

    公开(公告)号:US20150325401A1

    公开(公告)日:2015-11-12

    申请号:US14491825

    申请日:2014-09-19

    IPC分类号: H01J35/14 G01V5/00

    摘要: An inspection system for scanning cargo and vehicles is described which employs an X-ray source that includes an electron beam generator, for generating an electron beam; an accelerator for accelerating said electron beam in a first direction; and, a first set of magnetic elements for transporting said electron beam into a magnetic field created by a second set of magnetic elements, wherein the magnetic field created by said second set of magnetic elements causes said electron beam to strike a target such that the target substantially only generates X-rays focused toward a high density section in the scanned object, which is estimated in a second pulse using image data captured by a detector array in a first pulse. The electron beam direction is optimized by said X-ray source during said second pulse to focus X-rays towards said high density section based on said image data in said first pulse.

    摘要翻译: 描述了用于扫描货物和车辆的检查系统,其使用包括电子束发生器的X射线源,用于产生电子束; 用于在第一方向上加速所述电子束的加速器; 以及用于将所述电子束传送到由第二组磁性元件产生的磁场中的第一组磁性元件,其中由所述第二组磁性元件产生的磁场使所述电子束撞击靶,使得所述靶 基本上仅产生朝向扫描对象中的高密度部分聚焦的X射线,其以第一脉冲中由检测器阵列捕获的图像数据在第二脉冲中估计。 在所述第二脉冲期间,由所述X射线源优化电子束方向,以基于所述第一脉冲中的所述图像数据将X射线聚焦到所述高密度部分。

    Integrated Primary and Special Nuclear Material Alarm Resolution
    8.
    发明申请
    Integrated Primary and Special Nuclear Material Alarm Resolution 审中-公开
    综合主要和特殊核材料报警解决方案

    公开(公告)号:US20140321588A1

    公开(公告)日:2014-10-30

    申请号:US14274542

    申请日:2014-05-09

    IPC分类号: G01T3/00

    CPC分类号: G01T3/00 G01T3/06 G01V5/0091

    摘要: The present specification discloses methods for inspecting an object. The method includes scanning an object in a two-step process. In the primary scan, a truck or cargo container (container) is completely scanned with a fan beam radiation, the transmitted radiation is measured with an array of detectors, and the transmission information and optionally the fission signatures are analyzed to determine the presence of high-density, high-Z and fissionable materials. If the container alarms in one or more areas, the areas are subjected to a secondary scan. This is done by precisely repositioning the container to the location of the suspect areas, adjusting the scanning system to focus on the suspect areas, performing a stationary irradiation of the areas, and analyzing the measured feature signatures to clear or confirm the presence of SNM.

    摘要翻译: 本说明书公开了用于检查物体的方法。 该方法包括以两步过程扫描对象。 在主扫描中,货车或货物集装箱(集装箱)用风扇束辐射完全扫描,用检测器阵列测量传输的辐射,并分析传输信息和可选的裂变特征,以确定是否存在高 密度,高Z和可裂变材料。 如果容器在一个或多个区域中报警,那么这些区域将进行二次扫描。 这是通过将容器精确地重新定位到可疑区域的位置,调整扫描系统以集中在可疑区域上,执行区域的静止照射,以及分析测量的特征签名以清除或确认SNM的存在。

    Low-dose radiographic imaging system
    9.
    发明授权
    Low-dose radiographic imaging system 有权
    低剂量放射成像系统

    公开(公告)号:US09218933B2

    公开(公告)日:2015-12-22

    申请号:US14491825

    申请日:2014-09-19

    摘要: An inspection system for scanning cargo and vehicles is described which employs an X-ray source that includes an electron beam generator, for generating an electron beam; an accelerator for accelerating said electron beam in a first direction; and, a first set of magnetic elements for transporting said electron beam into a magnetic field created by a second set of magnetic elements, wherein the magnetic field created by said second set of magnetic elements causes said electron beam to strike a target such that the target substantially only generates X-rays focused toward a high density section in the scanned object, which is estimated in a second pulse using image data captured by a detector array in a first pulse. The electron beam direction is optimized by said X-ray source during said second pulse to focus X-rays towards said high density section based on said image data in said first pulse.

    摘要翻译: 描述了用于扫描货物和车辆的检查系统,其使用包括电子束发生器的X射线源,用于产生电子束; 用于在第一方向上加速所述电子束的加速器; 以及用于将所述电子束传送到由第二组磁性元件产生的磁场中的第一组磁性元件,其中由所述第二组磁性元件产生的磁场使所述电子束撞击靶,使得所述靶 基本上仅产生朝向扫描对象中的高密度部分聚焦的X射线,其以第一脉冲中由检测器阵列捕获的图像数据在第二脉冲中估计。 在所述第二脉冲期间,由所述X射线源优化电子束方向,以基于所述第一脉冲中的所述图像数据将X射线聚焦到所述高密度部分。

    High-energy X-ray-spectroscopy-based inspection system and methods to determine the atomic number of materials
    10.
    发明授权
    High-energy X-ray-spectroscopy-based inspection system and methods to determine the atomic number of materials 有权
    基于高能X射线光谱的检测系统和方法来确定材料的原子数

    公开(公告)号:US09207195B2

    公开(公告)日:2015-12-08

    申请号:US14268128

    申请日:2014-05-02

    摘要: The application discloses systems and methods for X-ray scanning for identifying material composition of an object being scanned. The system includes at least one X-ray source for projecting an X-ray beam on the object, where at least a portion of the projected X-ray beam is transmitted through the object, and an array of detectors for measuring energy spectra of the transmitted X-rays. The measured energy spectra are used to determine atomic number of the object for identifying the material composition of the object. The X-ray scanning system may also have an array of collimated high energy backscattered X-ray detectors for measuring the energy spectrum of X-rays scattered by the object at an angle greater than 90 degrees, where the measured energy spectrum is used in conjunction with the transmission energy spectrum to determine atomic numbers of the object for identifying the material composition of the object.

    摘要翻译: 本申请公开了用于识别被扫描物体的材料组成的用于X射线扫描的系统和方法。 该系统包括至少一个用于在物体上投射X射线束的X射线源,其中投影的X射线束的至少一部分透射穿过物体,以及用于测量所述X射线束的能量谱的检测器阵列 透射X射线。 测量的能谱用于确定物体的原子序号,用于识别物体的材料组成。 X射线扫描系统还可以具有准直的高能量背散射X射线检测器阵列,用于以大于90度的角度测量由物体散射的X射线的能谱,其中测量的能谱结合使用 用传输能谱来确定用于识别物体的材料组成的物体的原子序号。