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    RAY COLLIMATION DEVICE AND RADIATION INSPECTION DEVICE
    3.
    发明申请
    RAY COLLIMATION DEVICE AND RADIATION INSPECTION DEVICE 有权

    公开(公告)号：US20240379258A1

    公开(公告)日：2024-11-14

    申请号：US18690081

    申请日：2022-07-22

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Yaohong LIU ,  Wei YIN ,  Yumei CHEN ,  Weiqiang GUAN ,  Weike LI

    IPC: G21K1/04 ,  G01N23/06

    Abstract: Provided are a ray collimation device and a radiation inspection device. The ray collimation device includes a collimation assembly, a transmission assembly, and a driving assembly. The collimation assembly includes a first collimation block and a second collimation block. A collimation opening for collimating rays is provided between the first collimation block and the second collimation block. The transmission assembly includes a first transmission component and a second transmission component connected in a transmission manner, the second transmission component is connected to the driving assembly, and the first transmission component is connected to the first collimation block and the second collimation block. Under a drive of the driving assembly, the first transmission component is movable to drive the first collimation block and the second collimation block to move toward or away from each other at a same speed, thereby adjusting a width of the collimation opening.

    RADIATION PROTECTION ARRANGEMENT AND SECURITY INSPECTION DEVICE
    4.
    发明公开
    RADIATION PROTECTION ARRANGEMENT AND SECURITY INSPECTION DEVICE 审中-公开

    公开(公告)号：US20240361487A1

    公开(公告)日：2024-10-31

    申请号：US18690097

    申请日：2022-07-22

    Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

    Inventor： Li ZHANG ,  Yunda SUN ,  Xin JIN ,  Wuyang LIANG ,  Ming CHANG ,  Le SHEN

    IPC: G01V5/22

    CPC classification number: G01V5/22

    Abstract: A radiation protection arrangement, including: a housing, the housing including a first port and a second port; and a tray, the tray having an accommodation space. The tray is allowed to pass through a channel within the housing. The tray has a first end wall, a second end wall, and a bottom portion connected between the first end wall and the second end wall. A shape of the first end wall and/or a shape of the second end wall are/is configured to fit with an inner wall of the housing, so as to block a radiation from leaving the channel from the accommodation space through the second port or the first port. Further provided is a security inspection device, including the radiation protection arrangement.

    RAY SCANNING APPARATUS
    6.
    发明公开
    RAY SCANNING APPARATUS 审中-公开

    公开(公告)号：US20240248048A1

    公开(公告)日：2024-07-25

    申请号：US18575794

    申请日：2022-07-07

    Applicant: Nuctech Company Limited ,  Tsinghua University

    Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Qingping HUANG ,  Yong ZHOU ,  Zhenhua ZHAO ,  Hui DING ,  Xin JIN ,  Chao JI

    IPC: G01N23/046

    CPC classification number: G01N23/046 ,  G01N2223/308 ,  G01N2223/3305 ,  G01N2223/3308 ,  G01N2223/401 ,  G01N2223/419 ,  G01N2223/5015

    Abstract: A ray scanning apparatus, including: a conveying device; a ray source assembly including a plurality of ray source modules arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area; and a detector assembly including a plurality of detector sets arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area, where the opening of the non-enclosed structure of the ray source assembly is opposite to the opening of the non-enclosed structure of the detector assembly, the plurality of detector sets are fixed in a same plane perpendicular to the conveying direction of the object under inspection, and the plurality of ray source modules of the ray source assembly are arranged in a plurality of different planes perpendicular to the conveying direction of the object under inspection.

    Boundary protection method and system of radiation detection robot
    7.
    发明授权
    Boundary protection method and system of radiation detection robot 有权

    公开(公告)号：US11938639B2

    公开(公告)日：2024-03-26

    申请号：US17333886

    申请日：2021-05-28

    Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

    Inventor： Zhiqiang Chen ,  Jin Cui ,  Bin Hu ,  Dong Lin ,  Huawei Wu

    IPC: B25J9/16 ,  B25J13/08 ,  G01T1/16 ,  G08B21/18 ,  G08B21/22

    CPC classification number: B25J9/1676 ,  B25J13/087 ,  G01T1/1606 ,  G08B21/182 ,  G08B21/22

    Abstract: A boundary protection method and system of a radiation detection robot. The boundary protection method comprises: a first laser radar and a second laser radar are arranged diagonally, a first marking rod and a second marking rod are arranged diagonally; a boundary of an interlocking zone is defined by the first laser radar, the second laser radar, the first marking rod and the second marking rod; the object to be detected is placed in the interlocking zone; the radiation detection robot uses rays to detect the object to be detected in the interlocking zone; an early warning zone is provided outside the interlocking zone; wherein when it is detected that a person or object has intruded into the interlocking zone, the radiation detection robot stops emitting rays; and when it is detected that a person or object has intruded into the early warning zone, a warning is issued directly.

    METHOD OF TRAINING IMAGE DECOMPOSITION MODEL, METHOD OF DECOMPOSING IMAGE, ELECTRONIC DEVICE, AND STORAGE MEDIUM
    8.
    发明公开
    METHOD OF TRAINING IMAGE DECOMPOSITION MODEL, METHOD OF DECOMPOSING IMAGE, ELECTRONIC DEVICE, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20240037816A1

    公开(公告)日：2024-02-01

    申请号：US18225060

    申请日：2023-07-21

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Li ZHANG ,  Yunda SUN ,  Zheng HU ,  Gang FU ,  Qiang LI

    IPC: G06T11/00 ,  G06T5/50

    CPC classification number: G06T11/006 ,  G06T5/50 ,  G06T2207/20221 ,  G06T2207/20084 ,  G06T2207/20081

    Abstract: A method of training an image decomposition model, a method of decomposing an image, an electronic device, and a storage medium are provided. The method of training the image decomposition model includes: acquiring a training set; inputting first and second training images into first and second adversarial neural networks respectively, so as to determine a first loss function value; inputting a third training image into the first and second adversarial neural networks respectively, so as to determine a second loss function value; determining a third loss function value according to a comparison result between an acquired fusion image and the third training image, where the fusion image is generated by fusing generated images of the first and second adversarial neural networks, and adjusting a parameter of the image decomposition model according to at least one of the first to third loss function values.

    Method, apparatus and system for controlling standing wave linear accelerator
    10.
    发明授权
    Method, apparatus and system for controlling standing wave linear accelerator 有权

    公开(公告)号：US11737202B2

    公开(公告)日：2023-08-22

    申请号：US17247800

    申请日：2020-12-23

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Yaohong Liu ,  Jinsheng Liu ,  Wei Jia ,  Wei Yin ,  Feng Gao ,  Xiying Liu ,  Haokun Wang

    IPC: H05H9/04 ,  H05H7/02

    CPC classification number: H05H9/04 ,  H05H7/02 ,  H05H2007/027

    Abstract: Embodiments of the disclosed technology provide an apparatus for controlling a standing wave linear accelerator. An example standing wave linear accelerator includes an accelerating tube, a motor, and a microwave power source connected between the accelerating tube and the motor. An example apparatus includes a main processor configured to receive an envelope signal of a reflected wave signal output by the accelerating tube, determine whether an amplitude of the envelope signal is greater than an envelope threshold, and if it is determined that the amplitude of the envelope signal is less than the envelope threshold, determine whether to change a rotation direction of the motor by comparing the amplitude of the envelope signal with an envelope reference signal stored in a memory. The memory is connected to the main processor and is configured to store the envelope threshold and the envelope reference signal.

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