Composite Gamma-Neutron Detection System
    51.
    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:US20140042330A1

    公开(公告)日:2014-02-13

    申请号:US13753458

    申请日:2013-01-29

    Abstract: 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.

    Abstract translation: 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。

    Systems and methods for improved atomic-number based material discrimination

    公开(公告)号:US11822041B2

    公开(公告)日:2023-11-21

    申请号:US17655587

    申请日:2022-03-21

    CPC classification number: G01V5/0033 G01V5/0025 G01V5/0041

    Abstract: The present specification discloses a covert mobile inspection vehicle with a backscatter X-ray scanning system that has an X-ray source and detectors for obtaining a radiographic image of an object outside the vehicle. The systems preferably include at least one sensor for determining a distance from at least one of the detectors to points on the surface of the object being scanned, a processor for processing the obtained radiographic image by using the determined distance of the object to obtain an atomic number of each material contained in the object, and one or more sensors to obtain surveillance data from a predefined area surrounding the vehicle.

    Drive-Through Scanning Systems
    55.
    发明公开

    公开(公告)号:US20230251398A1

    公开(公告)日:2023-08-10

    申请号:US18150269

    申请日:2023-01-05

    CPC classification number: G01V5/0066 G01V5/0041

    Abstract: A drive-through scanning system comprises a radiation generating means arranged to generate radiation at two different energy levels and direct it towards a scanning volume, detection means arranged to detect the radiation after it has passed through the scanning volume, and control means arranged to identify a part of a vehicle within the scanning volume, to allocate the part of the vehicle to one of a plurality of categories, and to control the radiation generating means and to select one or more of the energy levels depending on the category to which the part of the vehicle is allocated.

    Drive-through scanning systems
    57.
    发明授权

    公开(公告)号:US11579328B2

    公开(公告)日:2023-02-14

    申请号:US16931217

    申请日:2020-07-16

    Abstract: A drive-through scanning system comprises a radiation generating means arranged to generate radiation at two different energy levels and direct it towards a scanning volume, detection means arranged to detect the radiation after it has passed through the scanning volume, and control means arranged to identify a part of a vehicle within the scanning volume, to allocate the part of the vehicle to one of a plurality of categories, and to control the radiation generating means and to select one or more of the energy levels depending on the category to which the part of the vehicle is allocated.

    High-speed security inspection system

    公开(公告)号:US11561321B2

    公开(公告)日:2023-01-24

    申请号:US17444918

    申请日:2021-08-12

    Abstract: The present specification discloses a high speed scanning system for scanning cargo carried by rail. The system uses of a two-dimensional X-ray sensor array with, in one embodiment, a cone-beam X-ray geometry. The pulse rate of X-ray source is modulated based on the speed of the moving cargo to allow a distance travelled by the cargo between X-ray pulses to be equal to the width of the detector, for a single energy source, and to half the width of the detector for a dual energy source. This ensures precise timing between the X-ray exposure and the speed of the passing object, and thus accurate scanning of cargo even at high speeds.

    Sensitivity Traps for Electronic Trace Detection

    公开(公告)号:US20220011286A1

    公开(公告)日:2022-01-13

    申请号:US17318917

    申请日:2021-05-12

    Abstract: Embodiments of the present specification provide methods and systems for sensitivity traps that contain a polymer matrix made from an inert polymer material for encapsulation of trace amounts of explosives and narcotics and a suitable plasticizer material, the types and ratios of which may be selected based on type of analyte that is to be used with the sensitivity trap. The plasticizer material functions by breaking up intra and inter-molecular polymer chain interactions resulting in a larger diffusion coefficient of the analyte within the polymer matrix. Therefore, in embodiments, sufficient amounts of plasticizers are added to the sensitivity trap, which also reduces a glass transition temperature of the polymer matrix and the trap.

Patent Agency Ranking