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    Method and equipment for discriminating materials by employing fast neutron and continuous spectral X-ray
    21.
    发明申请
    Method and equipment for discriminating materials by employing fast neutron and continuous spectral X-ray 有权
    采用快中子和连续光谱X射线鉴别材料的方法和设备

    公开(公告)号：US20070096036A1

    公开(公告)日：2007-05-03

    申请号：US11353472

    申请日：2006-02-14

    申请人： Kejun Kang ,  Haifeng Hu ,  Yali Xie ,  Qitian Miao ,  Yigang Yang ,  Yuanjing Li ,  Zhiqiang Chen ,  Xuewu Wang

    发明人： Kejun Kang ,  Haifeng Hu ,  Yali Xie ,  Qitian Miao ,  Yigang Yang ,  Yuanjing Li ,  Zhiqiang Chen ,  Xuewu Wang

    IPC分类号： G01N23/05

    CPC分类号： G01N23/04 ,  G01T3/00 ,  G01V5/0033

    摘要： Disclosed is a method of discriminating materials by employing fast neutron and continuous spectral X-ray and an equipment for the same. The method comprising the steps of: (a) transmitting a fast neutron beam produced by a fast neutron source and a continuous spectral X-ray beam produced by a continuous spectral X-ray source through inspected objects; (b) directly measuring the intensity of the transmitted X-rays and the intensity of the transmitted neutrons by a X-ray detector array and a neutron detector array respectively; and (c) identifying the materials of the inspected object by Z-dependency curves formed by the attenuation differences between the neutron beam and X-ray beam transmitted through different materials of the inspected object. This direct measurement of transmitted dual-ray technique has much more efficient than secondary radiations measurement such as neutron activation analysis, has much more material discrimination sensitivity than dual-energy x-ray technique. The respective measurements of neutrons and x-rays make the usages of high detect efficiency neutron detectors and x-ray detectors possible. The using continuous spectral x-ray produced by Linac adds more advantages such as: high penetration ability, high spatial resolution, and high image quality over monoenergetic dual-ray technique.

    摘要翻译： 本发明公开了一种采用快中子和连续光谱X射线鉴别材料的方法及其设备。 该方法包括以下步骤：（a）通过检测对象发射由快中子源产生的快中子束和由连续光谱X射线源产生的连续光谱X射线束; （b）分别通过X射线检测器阵列和中子检测器阵列直接测量透射的X射线的强度和发射的中子的强度; 和（c）通过由穿过检测对象的不同材料的中子束和X射线束之间的衰减差形成的Z依赖曲线识别被检物体的材料。 传输双光线技术的这种直接测量比二次辐射测量（例如中子活化分析）更有效，比双能X射线技术具有更多的材料辨别灵敏度。 中子和x射线的相应测量使得高检测效率的中子探测器和x射线探测器成为可能。 Linac生产的使用连续光谱X射线增加了更多的优点，如：单能量双光线技术，高穿透能力，高空间分辨率和高图像质量。

    Scanning device using radiation beam for backscatter imaging and method thereof
    23.
    发明授权
    Scanning device using radiation beam for backscatter imaging and method thereof 有权
    使用辐射束进行反向散射成像的扫描装置及其方法

    公开(公告)号：US09194827B2

    公开(公告)日：2015-11-24

    申请号：US13519305

    申请日：2010-06-28

    申请人： 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

    发明人： 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分类号： G01N23/203 ,  G21K1/04

    CPC分类号： G01N23/203 ,  G21K1/043

    摘要： 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.

    摘要翻译： 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。

    SCANNING DEVICE USING RADIATION BEAM FOR BACKSCATTER IMAGING AND METHOD THEREOF
    24.
    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

    申请人： 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

    发明人： 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分类号： G21K5/00

    CPC分类号： G01N23/203 ,  G21K1/043

    摘要： 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.

    摘要翻译： 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。

    Lifting apparatus and safety inspection system
    26.
    发明申请
    Lifting apparatus and safety inspection system 有权
    起重设备和安全检查系统

    公开(公告)号：US20070062253A1

    公开(公告)日：2007-03-22

    申请号：US11525697

    申请日：2006-09-22

    申请人： Xilei Luo ,  Kejun Kang ,  Yinong Liu ,  Yuanjing Li ,  Zhiqiang Chen ,  Wanlong Wu ,  Yulan Li ,  Li Zhang ,  Ziran Zhao ,  Bin Sang ,  Hailin Wang

    发明人： Xilei Luo ,  Kejun Kang ,  Yinong Liu ,  Yuanjing Li ,  Zhiqiang Chen ,  Wanlong Wu ,  Yulan Li ,  Li Zhang ,  Ziran Zhao ,  Bin Sang ,  Hailin Wang

    IPC分类号： G01N33/497

    CPC分类号： G01N23/046 ,  G01N2223/419

    摘要： The present invention discloses a lifting apparatus, comprising: a vertical guide device; a turntable device which is movable along the vertical guide device upwards or downwards; and a first driving device which drives the turntable device moving in an upward and downward direction guided by the vertical guide device. Wherein said turntable device comprises: a bracket which is slidably engaged with the vertical guide device and projects perpendicularly toward a side of the vertical guide device; a turntable which is rotatably provided on the bracket; and a second driving device which rotates the turntable on the bracket. The present invention further discloses a safety inspection system comprising the lifting apparatus. Compared with prior art, the present invention combines a rotating mechanism and a lifting mechanism as a single apparatus, thus, realizing the self rotation and elevation of the objects to be detected. Thus the present invention has the beneficial features, such as high movement precision, high transmission efficiency, low friction resistance and reduced noise etc.

    摘要翻译： 本发明公开了一种提升装置，包括：垂直导向装置; 可沿着垂直引导装置向上或向下移动的转台装置; 以及第一驱动装置，其驱动转盘装置沿垂直引导装置引导的上下方向移动。 其中所述转盘装置包括：支架，其与所述垂直引导装置可滑动地接合并垂直于所述垂直引导装置的一侧突出; 可旋转地设置在支架上的转盘; 以及使支架上的转盘旋转的第二驱动装置。 本发明还公开了一种包括提升装置的安全检查系统。 与现有技术相比，本发明将旋转机构和提升机构组合为单个装置，从而实现被检测物体的自转和升高。 因此，本发明具有移动精度高，传动效率高，摩擦阻力低，噪音小等优点。

    CT SCAN SECURITY CHECK DEVICE AND METHOD
    28.
    发明申请
    CT SCAN SECURITY CHECK DEVICE AND METHOD 审中-公开
    CT扫描安全检查装置和方法

    公开(公告)号：US20080232541A1

    公开(公告)日：2008-09-25

    申请号：US12052232

    申请日：2008-03-20

    申请人： Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Yulan Li ,  Li Zhang ,  Yinong Liu ,  Ziran Zhao ,  Wanlong Wu ,  Hailin Wang ,  Xilei Luo ,  Bin Sang ,  Shuo Cao

    发明人： Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Yulan Li ,  Li Zhang ,  Yinong Liu ,  Ziran Zhao ,  Wanlong Wu ,  Hailin Wang ,  Xilei Luo ,  Bin Sang ,  Shuo Cao

    IPC分类号： H05G1/60 ,  G01N23/00

    CPC分类号： G01V5/005

    摘要： A check process may be performed without rotation of a radiation source or detector. A CT scan security check device may include a radiation source and a detector forming a radiation detection area, a conveyer mechanism conveying an article along a path, and a multidimensional movement mechanism causing a relative displacement between the article and the radiation detection area in a vertical direction and causing the article to rotate about a vertical axis. A CT scan security check method may include: 1) displacing the article relative to the radiation detection area in the vertical direction; 2) rotating the article; 3) during the checked article passing through the radiation detection area, obtaining data regarding a radiation ray that passes through the article; and 4) transmitting the data for a CT arithmetic reconstruction.

    摘要翻译： 可以在不旋转辐射源或检测器的情况下执行检查过程。 CT扫描安全检查装置可以包括辐射源和形成放射线检测区域的检测器，沿着路径传送物品的输送机构以及在垂直方向上引起物品和辐射检测区域之间的相对位移的多维运动机构 方向并使制品围绕垂直轴旋转。 CT扫描安全检查方法可以包括：1）相对于垂直方向上的辐射检测区域移动物品; 2）旋转物品; 3）在通过辐射检测区域的被检查物品期间，获得关于穿过物品的辐射线的数据; 和4）发送用于CT算术重建的数据。

    X-CT scan system
    29.
    发明授权
    X-CT scan system 有权
    X-CT扫描系统

    公开(公告)号：US07760852B2

    公开(公告)日：2010-07-20

    申请号：US12159640

    申请日：2006-12-14

    申请人： Zhiqiang Chen ,  Kejun Kang ,  Li Zhang ,  Haifeng Hu ,  Yuxiang Xing ,  Liang Li ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

    发明人： Zhiqiang Chen ,  Kejun Kang ,  Li Zhang ,  Haifeng Hu ,  Yuxiang Xing ,  Liang Li ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

    IPC分类号： A61B6/00

    CPC分类号： A61B6/032 ,  A61B6/587

    摘要： An X-CT scan system includes a base, an object rotary support, an X-ray generation device and a data acquisition system, wherein one side of the detector is leveled to or beyond the prolong line of the connecting line between the X-ray source of the X-ray generation device and the center of the object rotary support, the length of the beyond portion is less than the radius of the imaging field. The advantage of the invention is in that the invention can reconstruct the entire image of the object by means of X-ray projection data which only covers half of the area of the object. Compared with the traditional CT scan system, half of the detector size can be saved at most. The X-CT scan system is simplified and the projection data amount for scan and computation amount for image reconstruction are also reduced with the reconstructed image quality guaranteed.

    摘要翻译： X-CT扫描系统包括基座，对象旋转支架，X射线产生装置和数据采集系统，其中检测器的一侧被平整到或超过X射线之间的连接线的延长线 X射线产生装置的源和对象旋转支架的中心，超出部分的长度小于成像场的半径。 本发明的优点在于，本发明可以通过仅覆盖对象区域的一半的X射线投影数据来重建物体的整个图像。 与传统CT扫描系统相比，检测器尺寸的一半最多可以节省。 X-CT扫描系统被简化，并且用于图像重建的扫描和计算量的投影数据量也被减少，重建图像质量得到保证。

    Multiple-view-angle cargo security inspection method and system
    30.
    发明授权
    Multiple-view-angle cargo security inspection method and system 有权
    多视角货物安全检查方法和系统

    公开(公告)号：US07512213B2

    公开(公告)日：2009-03-31

    申请号：US11801250

    申请日：2007-05-08

    申请人： Li Zhang ,  Zhiqiang Chen ,  Kejun Kang ,  Haifeng Hu ,  Yuxiang Xing ,  Xinhui Duan ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

    发明人： Li Zhang ,  Zhiqiang Chen ,  Kejun Kang ,  Haifeng Hu ,  Yuxiang Xing ,  Xinhui Duan ,  Yongshun Xiao ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu

    IPC分类号： G01N23/04

    CPC分类号： G01N23/046 ,  G01N2223/419 ,  G01T1/2985 ,  G01V5/005 ,  G06T7/0004

    摘要： A multiple-view-angle cargo security inspection method for inspecting an object using a cargo security inspection system, the cargo security inspection system including a radiation source for generating a beam of rays for transmitting through the object to be inspected and a data collecting unit for collecting the transmission projection data after the beam of rays has transmitted through the inspected object, the method including a scanning step including: rotating the radiation source and/or the object about a rotation axis so as to achieve a relative rotation, thereby positioning the radiation source in a plurality of discrete positions with different view angles with respect to the inspected object, wherein, in each view angle, the radiation source moves along a straight line in a direction parallel to the rotation axis and at the same time scans the inspected object so as to acquire the transmission projection data at each view angle.

    摘要翻译： 一种用于使用货物安全检查系统检查物体的多视角货物安全检查方法，所述货物安全检查系统包括用于产生用于通过待检查对象传送的光束的辐射源，以及用于 在射线束透过被检查物体之后收集透射投影数据，该方法包括扫描步骤，包括：使辐射源和/或物体围绕旋转轴旋转，以实现相对旋转，从而定位辐射 源于相对于被检查物体具有不同视角的多个离散位置，其中，在每个视角中，辐射源沿着平行于旋转轴线的方向沿着直线移动，并且同时扫描被检查物体 以便以每个视角获取传输投影数据。