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    ENCLOSED X-RAY CHOPPER WHEEL
    1.
    发明公开
    ENCLOSED X-RAY CHOPPER WHEEL 审中-公开

    公开(公告)号：US20240230560A1

    公开(公告)日：2024-07-11

    申请号：US18613358

    申请日：2024-03-22

    申请人： VIDERAY TECHNOLOGIES, INC.

    发明人： Paul Bradshaw

    IPC分类号： G01N23/203 ,  G01V5/222 ,  G21K1/04

    CPC分类号： G01N23/203 ,  G01V5/222 ,  G21K1/043 ,  G01N2223/314

    摘要： A chopper wheel assembly includes a collimator configured to narrow an x-ray beam generated by a source of x-ray energy, a chopper wheel has a planar surface configured to face in a direction of the collimator and a housing including a hollow interior region configured to receive the chopper wheel. The chopper wheel includes a central axis, a plurality of slits in the planar surface, a first projection extending from the planar surface in a direction of the collimator and a second projection extending from the planar surface in the direction of the collimator. The slits extend in radially-outward direction relative to the central axis. The first projection is located radially outward of the plurality of slits and the second projection is located radially inward of the plurality of slits.

    Enclosed x-ray chopper wheel
    2.
    发明授权
    Enclosed x-ray chopper wheel 有权

    公开(公告)号：US11940395B2

    公开(公告)日：2024-03-26

    申请号：US17631949

    申请日：2020-07-28

    申请人： VIDERAY TECHNOLOGIES, INC.

    发明人： Paul Bradshaw

    IPC分类号： G01N23/203 ,  G01V5/222 ,  G21K1/04

    CPC分类号： G01N23/203 ,  G01V5/222 ,  G21K1/043 ,  G01N2223/314

    摘要： A chopper wheel assembly includes a collimator configured to narrow an x-ray beam, a chopper wheel has a planar surface configured to face in a direction of the collimator and a housing configured to receive the chopper wheel. The chopper wheel includes a central axis, a plurality of slits in the planar surface, a first projection extending from the planar surface in a direction of the collimator and a second projection extending from the planar surface in the direction of the collimator. The slits extend in radially-outward direction relative to the central axis. The first projection is located radially outward of the plurality of slits and the second projection is located radially inward of the plurality of slits. Each projection is provided for 360 degrees about the central axis. The housing includes an interior wall including a first groove configured to receive the first projection and a second groove configured to receive the second projection with the chopper wheel received within the housing.

    SYSTEM AND METHOD FOR CLASSIFYING MATERIAL
    3.
    发明公开
    SYSTEM AND METHOD FOR CLASSIFYING MATERIAL 审中-公开

    公开(公告)号：US20240255672A1

    公开(公告)日：2024-08-01

    申请号：US18414847

    申请日：2024-01-17

    申请人： GScan OÜ

    发明人： Märt Mägi ,  Egils Avots ,  Kadir Aktas

    IPC分类号： G01V5/222

    CPC分类号： G01V5/222

    摘要： A system for classifying materials includes at least one hodoscope with at least one first (2D sensitive) detector unit and at least one second (2D sensitive) detector unit, wherein first detector unit and second detector unit are spaced apart by predetermined first distance to configure a volume of interest (VOI) therebetween to receive therein samples of materials within VOI. The system also includes a processor communicably coupled to at least one hodoscope, wherein processor is configured to reconstruct VOI using plurality of spatial resolution units, track high energy particles passing through VOI by identifying spatial resolution units interacting with high energy particles, create dataset using one or more features associated with each of samples of materials, and train machine learning model using dataset of each of samples of materials for classifying materials. Disclosed also a method for classifying materials.

    Materials classifier
    4.
    发明授权
    Materials classifier 有权

    公开(公告)号：US12044635B2

    公开(公告)日：2024-07-23

    申请号：US17753016

    申请日：2020-08-13

    申请人： BAE SYSTEMS plc

    发明人： Lionel William John Kent ,  Jason John Lepley

    IPC分类号： G01N23/20066 ,  G01N33/22 ,  G01V5/222

    CPC分类号： G01N23/20066 ,  G01N33/227 ,  G01V5/222 ,  G01N2223/053

    摘要： A method and apparatus for classifying and/or identifying materials by means of their spectral response to gamma radiation. Classification is carried out by irradiating multiple different samples with gamma radiation, detecting a spectral response in the backscatter direction, sorting the spectral response into energy bands and selecting a combination of energy bands to define a relationship that best distinguishes between clusters of spectral responses for different material classes. Two or more of the energy bands may overlap.