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    Imaging system
    12.
    发明申请
    Imaging system 有权
    成像系统

    公开(公告)号：US20070116177A1

    公开(公告)日：2007-05-24

    申请号：US11545255

    申请日：2006-10-10

    Applicant: Zhiqiang Chen ,  Li Zhang ,  Hewei Gao ,  Kejun Kang ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

    Inventor： Zhiqiang Chen ,  Li Zhang ,  Hewei Gao ,  Kejun Kang ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

    IPC: G01N23/04

    CPC classification number: G01N23/04 ,  A61B6/027

    Abstract: It is disclosed an imaging system comprising: radiation generating means including at least one radiation source for generating radiations; data acquiring means including an detector matrix faced the radiation source for obtaining projection data by receiving radiations penetrated through an object to be inspected; transporting means for making the object to be inspected between the radiation source and the detector matrix linearly moving relative to the radiation source and the detector matrix; and controlling and image processing means for controlling the radiation generating means, the data acquiring means and the transporting means, and for reconstructing an image of the object to be inspected from the projection data. The imaging system according to the present invention achieves a real stereoscopic radiography by using straight-line trajectory scan and reconstructing a tomographic or stereoscopic image through a straight-line filtered back-projection algorithm. The present imaging system has advantages of fast examination speed, no rotation, and out of large cone-angle problem in a circular-orbit cone-beam CT.

    Abstract translation: 公开了一种成像系统，包括：辐射发生装置，其包括用于产生辐射的至少一个辐射源; 数据获取装置，包括面向辐射源的检测器矩阵，用于通过接收穿过待检查对象的辐射来获得投影数据; 用于使所述物体在所述辐射源和所述检测器矩阵之间相对于所述辐射源和所述检测器矩阵线性移动的传送装置; 以及控制和图像处理装置，用于控制辐射发生装置，数据获取装置和传送装置，并用于从投影数据重建待检查对象的图像。 根据本发明的成像系统通过使用直线轨迹扫描并通过直线过滤的反投影算法重建断层摄影或立体图像来实现真正的立体放射照相。 本发明的成像系统在圆锥轨道锥形CT中具有检测速度快，无旋转和大锥角问题的优点。

    Method and apparatus for liquid safety-detection by backscatter with a radiation source
    13.
    发明申请
    Method and apparatus for liquid safety-detection by backscatter with a radiation source 有权
    用辐射源通过后向散射进行液体安全检测的方法和装置

    公开(公告)号：US20060133566A1

    公开(公告)日：2006-06-22

    申请号：US11285395

    申请日：2005-11-23

    Applicant: Yulan Li ,  Haifeng Hu ,  Yinong Liu ,  Zhiqiang Chen ,  Kejun Kang ,  Li Zhang ,  Wanlong Wu ,  Yuanjing Li ,  Yi Wang ,  Wenjun He ,  Mingrui Qi

    Inventor： Yulan Li ,  Haifeng Hu ,  Yinong Liu ,  Zhiqiang Chen ,  Kejun Kang ,  Li Zhang ,  Wanlong Wu ,  Yuanjing Li ,  Yi Wang ,  Wenjun He ,  Mingrui Qi

    IPC: G01N23/04

    CPC classification number: G01N23/20066 ,  G01N23/203 ,  G01N2223/637 ,  G01V5/0025

    Abstract: A method and an apparatus for liquid safety-detection by backscatter with a radiation source relate to a radiation detecting technology field. The invention comprises using a radiation source, a collimator, a detector, a data collector and a computer data processor, and has the main steps of: 1) a liquid article to be detected being placed onto a rotatable platform; 2) the ray emitted from the radiation source causing Compton scattering at the surface of the liquid after passing through the package layer of the liquid article; 3) the scattering photons being received by the detector after passing the collimator; 4) the detector transmitting the received data to the data collector; and 5) the data collector transmitting the amplified and shaped data to the computer data processor, which processes the data to obtain the liquid density of the detected article, then compares the result with the densities of dangerous articles in a current database, and gives warning if finding that the density of the detected article is consistent with that of a dangerous article. Comparing to the prior art, the invention has a convenient use, a rapid and accurate detection, a strong anti-interference, a high use safety and reliability, and an easy protection.

    Abstract translation: 用于通过具有辐射源的后向散射进行液体安全检测的方法和装置涉及辐射检测技术领域。 本发明包括使用辐射源，准直仪，检测器，数据采集器和计算机数据处理器，并且具有以下主要步骤：1）待检测的液体物品被放置在可旋转平台上; 2）从辐射源发出的射线，在液体物品的包装层穿过液体表面后会引起康普顿散射; 3）散射光子在通过准直仪之后被检测器接收; 4）检测器将接收的数据发送到数据采集器; 5）数据收集器将放大和成形数据发送到计算机数据处理器，处理数据以获得检测到的物品的液体密度，然后将结果与当前数据库中的危险物品的密度进行比较，并给出警告 如果发现检测到的物品的密度与危险物品的密度一致。 与现有技术相比，本发明方便使用，检测快速准确，抗干扰性强，使用安全可靠，易于保护。

    Container inspection system with CT tomographic scanning function
    14.
    发明申请
    Container inspection system with CT tomographic scanning function 审中-公开
    集装箱检查系统具有CT断层扫描功能

    公开(公告)号：US20060126772A1

    公开(公告)日：2006-06-15

    申请号：US11287332

    申请日：2005-11-23

    Applicant: Haifeng Hu ,  Qitian Miao ,  Liming Wang ,  Kejun Kang ,  Zhiqiang Chen ,  Yucheng Wu ,  Shangmin Sun ,  Yanjun Han ,  Hua Peng ,  Nan Jiang ,  Zhizhong Liang

    Inventor： Haifeng Hu ,  Qitian Miao ,  Liming Wang ,  Kejun Kang ,  Zhiqiang Chen ,  Yucheng Wu ,  Shangmin Sun ,  Yanjun Han ,  Hua Peng ,  Nan Jiang ,  Zhizhong Liang

    IPC: G21G1/00

    CPC classification number: G01N23/046 ,  G01N2223/419 ,  G01N2223/643 ,  G01V5/005

    Abstract: A container inspection system with CT tomographic scanning function, which is related to a large container inspection system for Customs, is disclosed, comprising: a radiation source; an annular rotatable rack with the radiation source provided at the outside thereof and rotated with it; an annular rack body for supporting the annular rotatable rack in a vertical plane; a driving device for rotating the annular rotatable rack; a detector array provided in the inner side of said annular rotatable rack and opposed to a side where the radiation source is provided; a transmission device passing through the annular rotatable rack and annular rack body, and transmitting a container truck to be detected in linear movement; a remote control device for controlling the operations of the radiation source, the driving device and the transmission device, and receiving/displaying the image signal obtained by the detector array. Not only can general inspection of the objects to be detected be undertaken, but also does repeated tomographic inspection of suspicious locations within the inspected objects, thus achieves effective accuracy improvement of the contrabands detection.

    Abstract translation: 公开了一种具有CT断层扫描功能的集装箱检查系统，涉及海关的大型集装箱检验系统，包括：辐射源; 环形可旋转的齿条，其辐射源设置在其外部并随其旋转; 环形齿条体，用于在垂直平面内支撑环形旋转齿条; 用于旋转所述环形旋转齿条的驱动装置; 检测器阵列，设置在所述环形旋转齿条的内侧，并与设置有所述辐射源的一侧相对; 穿过环形可旋转齿条和环形齿条体的传动装置，并以直线运动传递待检测的集装箱卡车; 用于控制辐射源，驱动装置和传输装置的操作以及接收/显示由检测器阵列获得的图像信号的遥控装置。 不仅可以对要检测的物体进行全面检查，而且对受检物体内的可疑位置进行重复层析检查，从而实现对违禁品检测的有效准确性提高。

    SCANNING DEVICE USING RADIATION BEAM FOR BACKSCATTER IMAGING AND METHOD THEREOF
    16.
    发明申请
    SCANNING DEVICE USING RADIATION BEAM FOR BACKSCATTER IMAGING AND METHOD THEREOF 有权
    使用辐射光束进行背景扫描成像的扫描装置及其方法

    公开(公告)号：US20120288066A1

    公开(公告)日：2012-11-15

    申请号：US13519305

    申请日：2010-06-28

    Applicant: Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Wanlong Wu ,  Dong Lin ,  Le Tang ,  Chao Tu ,  Zongjun Shen ,  Guangwei Ding ,  Yingkang Jin ,  Xilei Luo ,  Shuo Cao

    Inventor： Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Wanlong Wu ,  Dong Lin ,  Le Tang ,  Chao Tu ,  Zongjun Shen ,  Guangwei Ding ,  Yingkang Jin ,  Xilei Luo ,  Shuo Cao

    IPC: G21K5/00

    CPC classification number: G01N23/203 ,  G21K1/043

    Abstract: Disclosed is a scanning device using radiation beam for backscatter imaging. The scanning device includes a radiation source; a stationary shield plate and a rotary shield body positioned respectively between the radiation source and the subject to be scanned, wherein the stationary shield plate is fixed relative to the radiation source, and the rotary shield body is rotatable relative to the stationary shield plate. The ray passing area permitting the rays from the radiation source to pass through the stationary shield plate is provided on the stationary shield plate, and ray incidence area and ray exit area are respectively provided on the rotary shield body. During the process of the rotating and scanning of the rotary shield body, the ray passing area of the stationary shield plate intersects consecutively with the ray incidence area and the ray exit area of the rotary shield body to form scanning collimation holes. Further, a scanning method using radiation beam for backscatter imaging is also provided.

    Abstract translation: 公开了使用用于反向散射成像的辐射束的扫描装置。 扫描装置包括辐射源; 分别位于辐射源和待扫描对象之间的固定屏蔽板和旋转屏蔽体，其中固定屏蔽板相对于辐射源固定，并且旋转屏蔽体可相对于固定屏蔽板旋转。 在固定屏蔽板上设置允许来自辐射源的光线通过固定屏蔽板的射线通过面积，并且在旋转屏蔽体上分别设置射线入射区域和射出口区域。 在旋转屏蔽体的旋转和扫描过程中，固定屏蔽板的射线通过面积与旋转屏蔽体的射线入射面积和射线出射面积连续相交，形成扫描准直孔。 此外，还提供了使用用于反向散射成像的辐射束的扫描方法。

    Image reconstruction method for high-energy, dual-energy CT system
    17.
    发明授权
    Image reconstruction method for high-energy, dual-energy CT system 有权
    高能双能CT系统图像重建方法

    公开(公告)号：US08306180B2

    公开(公告)日：2012-11-06

    申请号：US12509977

    申请日：2009-07-27

    Applicant: Li Zhang ,  Zhiqiang Chen ,  Kejun Kang ,  Haifeng Hu ,  Yuxiang Xing ,  Xinhui Duan ,  Yuanjing Li ,  Yinong Liu ,  Qingping Huang

    Inventor： Li Zhang ,  Zhiqiang Chen ,  Kejun Kang ,  Haifeng Hu ,  Yuxiang Xing ,  Xinhui Duan ,  Yuanjing Li ,  Yinong Liu ,  Qingping Huang

    IPC: A61B6/00 ,  G01N23/04

    CPC classification number: G01V5/005 ,  G01V5/0041

    Abstract: Disclosed is an image reconstruction method in a high-energy dual-energy CT system. The method comprises steps of scanning an objection with high-energy dual-energy rays to obtain high-energy dual-energy projection values, calculating projection values of base material coefficients corresponding to the dual-energy projection values on the basis of a pre-created lookup table or by analytically solving a set of equations, and obtaining an image of base material coefficient distribution based on the projection values of base material coefficients. The method provides a solution for reconstruction with high-energy dual energy CT technology and thus a more effective approach for substance identification and contraband inspection, thereby bringing a significant improvement on accuracy and efficiency in security inspection.

    Abstract translation: 公开了一种高能双能CT系统中的图像重建方法。 该方法包括以高能双能量射线扫描异物以获得高能双能量投影值的步骤，基于预先创建的计算来计算对应于双能量投影值的基材系数的投影值 查找表或通过分析求解一组方程，并且基于基材系数的投影值获得基材系数分布的图像。 该方法为高能双能CT技术的重建提供了解决方案，是物质识别和违禁检测的有效途径，从而大大提高了安全检测的准确性和效率。

    METHOD AND SYSTEM FOR CONTRABAND DETECTION USING PHOTONEUTRONS AND X-RAYS
    19.
    发明申请
    METHOD AND SYSTEM FOR CONTRABAND DETECTION USING PHOTONEUTRONS AND X-RAYS 有权
    使用光子束和X射线进行检测的方法和系统

    公开(公告)号：US20100246763A1

    公开(公告)日：2010-09-30

    申请号：US12665301

    申请日：2008-06-19

    Applicant: Kejun Kang ,  Haifeng Hu ,  Yigang Yang ,  Zhiqiang Chen ,  Qitian Miao ,  Jianping Cheng ,  Yuanjing Li

    Inventor： Kejun Kang ,  Haifeng Hu ,  Yigang Yang ,  Zhiqiang Chen ,  Qitian Miao ,  Jianping Cheng ,  Yuanjing Li

    IPC: G01N23/04 ,  G01N23/09

    CPC classification number: G21B1/19 ,  C09D5/1606 ,  G21G4/02 ,  H05H6/00

    Abstract: A method and a system for contraband detection in an object using photoneutrons and x-rays includes an x-ray generator that generates an x-ray main beam including a first x-ray beam and a second x-ray beam, the first x-ray beam being directed to pass through the object. A photoneutron conversion target is arranged to receive the second x-ray beam so as to generate photoneutrons, the photoneutrons being directed to enter the object and react with the object to emit characteristic γ-rays. An x-ray detecting arrangement is arranged to receive the first x-ray beam that has passed through the object in order to perform x-ray imaging detection of the detected object. A γ-ray detecting arrangement is arranged to receive the characteristic γ-rays in order to perform neutron detection of the object based on the characteristic γ-rays. The x-ray imaging detection and the neutron detection are simultaneously performed.

    Abstract translation: 使用光子中子和X射线的物体中的违禁品检测方法和系统包括产生包括第一X射线束和第二X射线束的X射线主光束的X射线发生器， 射线束被引导通过物体。 光子中子转换目标被布置成接收第二x射线束以产生光子酮，所述光子酮被引导进入物体并与物体反应以发射特征γ射线。 X射线检测装置被布置成接收已经通过物体的第一x射线束，以对被检测物体进行X射线成像检测。 γ射线检测装置被布置成接收特征γ射线，以便基于特征γ射线进行物体的中子检测。 同时进行x射线成像检测和中子检测。

    Method and device of irradiation of logs with x-ray as a phytosanitary treatment
    20.
    发明授权
    Method and device of irradiation of logs with x-ray as a phytosanitary treatment 有权
    采用X射线照射原木的方法和装置作为植物检疫处理

    公开(公告)号：US07760854B2

    公开(公告)日：2010-07-20

    申请号：US12101726

    申请日：2008-04-11

    Applicant: Kejun Kang ,  Haifeng Hu ,  Chuanxiang Tang ,  Yuanjing Li ,  Qitian Miao ,  Huayi Zhang ,  Junli Li ,  Zhiqiang Chen ,  Ming Hu ,  Ming Huang ,  Yaohong Liu ,  Wanlong Wu ,  Hui Zhang ,  Shenjin Ming

    Inventor： Kejun Kang ,  Haifeng Hu ,  Chuanxiang Tang ,  Yuanjing Li ,  Qitian Miao ,  Huayi Zhang ,  Junli Li ,  Zhiqiang Chen ,  Ming Hu ,  Ming Huang ,  Yaohong Liu ,  Wanlong Wu ,  Hui Zhang ,  Shenjin Ming

    IPC: G21K5/00 ,  G01N23/04

    CPC classification number: A61L2/082 ,  A01M1/226 ,  B27K5/0045

    Abstract: A method for conducting irradiation of all logs of a whole vehicle with X-rays as a phytosanitary treatment may include: connecting a traction device and a goods carrying vehicle outside a shielding door; opening the door; the traction device pulling the vehicle into a tunnel; closing the shielding door; upon the vehicle reaching an irradiation region, accelerators generating X-rays; the traction device pulling the vehicle to pass through the irradiation region; stopping the X-rays; opening the door; the traction device pulling the vehicle away from the irradiation treatment tunnel; and disconnecting the traction device from the vehicle. A device may include a shielding structure, a tunnel formed therethrough; a rail along the tunnel; accelerators within the tunnel; and a traction device for pulling a vehicle carrying goods for quarantine treatment, the accelerators symmetrically arranged at both sides of and on the top of an irradiation region in the tunnel.

    Abstract translation: 用X射线照射整个车辆的所有原木作为植物检疫处理的方法可以包括：将牵引装置和运载车辆连接在屏蔽门外部; 开门; 牵引装置将车辆拉入隧道; 关闭屏蔽门; 车辆到达照射区域时，产生X射线的加速器; 所述牵引装置拉动所述车辆通过所述照射区域; 停止X射线; 开门; 所述牵引装置将所述车辆拉离所述照射处理隧道; 并将牵引装置与车辆断开连接。 装置可以包括屏蔽结构，穿过其形成的隧道; 沿隧道的铁路; 隧道内的加速器; 以及牵引装置，用于牵引携带用于检疫处理的货物的车辆，所述加速器对称地布置在隧道中的照射区域的两侧和顶部。

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