Systems and methods for improving penetration of radiographic scanners

    公开(公告)号:US10754057B2

    公开(公告)日:2020-08-25

    申请号:US15648724

    申请日:2017-07-13

    Abstract: Systems and methods are used to increase the penetration and reduce the exclusion zone of radiographic systems. An X-ray detection method irradiates an object with X-ray fanlets including vertically moving fan beams, each fanlet having an angular range smaller than the angular coverage of the object. The fanlets are produced by modulating an X-ray beam, synchronizing the X-ray beam and the fanlets, detecting the fanlets irradiating the object, collecting image slices from the detector array corresponding to a complete scan cycle of the fanlets, and processing the image slices collected for combining into a composite image.

    Intelligent security management system

    公开(公告)号:US10713914B2

    公开(公告)日:2020-07-14

    申请号:US16148719

    申请日:2018-10-01

    Abstract: The present specification describes a smart security management system for managing the flow of people through security checkpoints in order to optimize overall throughput and efficiency. In an embodiment, the system includes a centralized database which is connected to a plurality of security checkpoints and which uses benchmark response data generated by a specific type of screening devices for a set of individuals. In an embodiment, the response data gathered by similar types of screening devices located at security checkpoints is compared with the benchmark response data stored in a centralized database to provide faster security clearance to individuals.

    Ionization Chamber Having a Potential-Well for Ion Trapping and Ion Compression

    公开(公告)号:US20200161116A1

    公开(公告)日:2020-05-21

    申请号:US16438293

    申请日:2019-06-11

    Abstract: An ionization chamber. The ionization chamber includes a vessel, an ionization source, an ion gate, and a mid-ring electrode. The vessel defines an ionization region. The vessel includes a first end axially disposed opposite a second end. The ionization source is located at the first end and generates ions. The ion gate is located at the second end of the vessel. The mid-ring electrode is located between the ionization source and the ion gate. During an ion compression stage, the ionization source is charged to a first ionization source potential, the ion gate is charged to a first ion gate potential, and the mid-ring electrode is charged to a first mid-ring potential that is less than the first ionization source potential and the first ion gate potential. The first mid-ring potential is configured to generate a potential well proximate the mid-ring electrode. The ions collect at the potential well.

    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

    Abstract: 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.

    X-Ray Scanners
    146.
    发明申请
    X-Ray Scanners 审中-公开

    公开(公告)号:US20190353821A1

    公开(公告)日:2019-11-21

    申请号:US16192112

    申请日:2018-11-15

    Abstract: The present application discloses an X-ray scanner having an X-ray source arranged to emit X-rays from source points through an imaging volume. The scanner may further include an array of X-ray detectors which may be arranged around the imaging volume and may be arranged to output detector signals in response to the detection of X-rays. The scanner may further include a conveyor arranged to convey an object through the imaging volume in a scan direction, and may also include at least one processor arranged to process the detector signals to produce an image data set defining an image of the object. The image may have a resolution in the scan direction that is at least 90% as high as in one direction, and in some cases two directions, orthogonal to the scan direction.

    Sampling Device Including Mechanical Force Feedback Mechanism

    公开(公告)号:US20190316992A1

    公开(公告)日:2019-10-17

    申请号:US16404025

    申请日:2019-05-06

    Abstract: The present disclosure includes a sampling device for collecting a sample from a target surface, the sample device including a handle, a body extending from the handle, and a mechanical force feedback mechanism. The mechanical force feedback mechanism is configured to change an orientation of the body relative to the handle when force is applied to a target surface by the sampling device.

    Ionization chamber having a potential-well for ion trapping and ion compression

    公开(公告)号:US10361074B2

    公开(公告)日:2019-07-23

    申请号:US15820331

    申请日:2017-11-21

    Abstract: An ionization chamber. The ionization chamber includes a vessel, an ionization source, an ion gate, and a mid-ring electrode. The vessel defines an ionization region. The vessel includes a first end axially disposed opposite a second end. The ionization source is located at the first end and generates ions. The ion gate is located at the second end of the vessel. The mid-ring electrode is located between the ionization source and the ion gate. During an ion compression stage, the ionization source is charged to a first ionization source potential, the ion gate is charged to a first ion gate potential, and the mid-ring electrode is charged to a first mid-ring potential that is less than the first ionization source potential and the first ion gate potential. The first mid-ring potential is configured to generate a potential well proximate the mid-ring electrode. The ions collect at the potential well.

    X-ray scanner with partial energy discriminating detector array

    公开(公告)号:US10353109B2

    公开(公告)日:2019-07-16

    申请号:US15787886

    申请日:2017-10-19

    Abstract: The present specification describes a scanning/inspection system configured as a dual-view system using dual-energy sensitive stacked detectors that are partially populated with multi-energy discriminating detectors for overall enhanced energy resolution and therefore improved discrimination of materials through better estimation of material physical properties such as density and effective atomic number.

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