公开(公告)号：US08374310B2

公开(公告)日：2013-02-12

申请号：US12665301

申请日：2008-06-19

申请人： Kejun Kang ,  Haifeng Hu ,  Yigang Yang ,  Zhiqiang Chen ,  Qitian Miao ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Hua Peng ,  Tiezhu Li ,  Ziran Zhao ,  Yaohong Liu ,  Wanlong Wu

发明人： Kejun Kang ,  Haifeng Hu ,  Yigang Yang ,  Zhiqiang Chen ,  Qitian Miao ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Hua Peng ,  Tiezhu Li ,  Ziran Zhao ,  Yaohong Liu ,  Wanlong Wu

IPC分类号： G01N23/04

CPC分类号： G21B1/19 ,  C09D5/1606 ,  G21G4/02 ,  H05H6/00

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120168620A1

公开(公告)日：2012-07-05

申请号：US13142523

申请日：2011-05-16

申请人： Yuanjing Li ,  Zhiqiang Chen ,  Qingjun Zhang ,  Shaoji Mao ,  Ziran Zhao ,  Yinong Liu ,  Shiping Cao ,  Yan Zheng ,  Jianping Chang ,  Xiang Zou

发明人： Yuanjing Li ,  Zhiqiang Chen ,  Qingjun Zhang ,  Shaoji Mao ,  Ziran Zhao ,  Yinong Liu ,  Shiping Cao ,  Yan Zheng ,  Jianping Chang ,  Xiang Zou

IPC分类号： H01J49/40 ,  H01J49/00

CPC分类号： G01N27/622

摘要： A sample feeding device for a trace detector is disclosed. The sample feeding device comprises: a sample feeding chamber disposed in the sample feeding device to desorb a sample from a sample feeding member; and a valve assembly configured to fluidly communicate the sample feeding chamber with a drift tube of the trace detector during feeding sample. With the above configuration of the present invention, for example, the sensitivity of the detector can be increased by improving the permeation ratio of the sample. In addition, interior environment of the drift tube is isolated from exterior environment to avoid a drift region of the drift tube from being polluted. The important parameters, such as sensitivity, a position of a peak of a substance, a resolution, of the detector can be kept constant. As a result, operation reliability and consistency of the detector can be achieved.

摘要翻译： 公开了一种用于跟踪检测器的采样馈送装置。 样品供给装置包括：样品供给室，设置在样品供给装置中，以从样品供给部件解吸样品; 以及阀组件，其构造成在进给样品期间将样品供给室与迹线检测器的漂移管流体连通。 利用本发明的上述结构，例如可以通过提高样品的透过率来提高检测器的灵敏度。 此外，漂移管的内部环境与外部环境隔离，以避免漂移管的漂移区域被污染。 可以保持检测器的重要参数，如灵敏度，物质峰的位置，分辨率等。 结果，可以实现检测器的操作可靠性和一致性。

公开(公告)号：US20120148133A1

公开(公告)日：2012-06-14

申请号：US13322243

申请日：2009-12-30

申请人： Zhiqiang Chen ,  Li Zhang ,  Yuanyuan Liu ,  Yuxiang Xing ,  Ziran Zhao

发明人： Zhiqiang Chen ,  Li Zhang ,  Yuanyuan Liu ,  Yuxiang Xing ,  Ziran Zhao

IPC分类号： G06K9/34

CPC分类号： A61B6/4035 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/5205 ,  G06T11/005 ,  G06T11/008 ,  G06T2211/408

摘要： A dual-energy material identification method and system with under-sampling is disclosed. A CT image of the object is obtained by using the CT image reconstruction method, while the dual-energy projections are under-sampled to obtain a few samples. Photoelectric coefficient integral and Compton coefficient integral are computed from these dual-energy projection data. The CT image is segmented into regions with image processing technique, and the regions are labeled. The length by which a few dual-energy rays crosses each labeled region is computed, and an equation system is established with dual-energy preprocessing dual-effect decomposition reconstruction method to compute Photoelectric coefficient and Compton coefficient, and then atomic number and electron density of material in each region are computed. The material of the object can be identified with the atomic number.

摘要翻译： 披露了一种双能量材料识别方法和具有欠采样的系统。 通过使用CT图像重建方法获得对象的CT图像，而双能量投影被低取样以获得少量样本。 从这些双能量投影数据计算光电系数积分和康普顿系数积分。 CT图像被分割成具有图像处理技术的区域，并且区域被标记。 计算出一些双能量射线穿过每个标记区域的长度，并用双能预处理双效分解重建方法建立方程组，计算光电系数和康普顿系数，然后计算原子数和电子密度 计算每个区域的材料。 可以用原子序号识别物体的材料。

公开(公告)号：US20120140874A1

公开(公告)日：2012-06-07

申请号：US13322696

申请日：2009-12-30

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

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

IPC分类号： A61B6/03 ,  A61B6/08

CPC分类号： A61B6/032 ,  A61B6/06 ,  A61B6/4452 ,  A61B6/469 ,  G06T11/006 ,  G06T2211/416 ,  G06T2211/421 ,  G06T2211/424

摘要： The present invention discloses a method for performing CT imaging on a region of interest of an object under examination, comprising: acquiring the CT projection data of the region of interest; acquiring the CT projection data of region B; selecting a group of PI line segments covering the region of interest, and calculating the reconstruction image value for each PI line segment in the group; and combining the reconstruction image values in all the PI line segments to obtain the image of the region of interest. The present invention further discloses a CT imaging device using this method and a data processor therein. Since the 2D/3D slice image of the region of interest can be exactly reconstructed and obtained as long as the X-ray beam covers the region of interest and the region B, it is possible to use a small-sized detector to perform CT imaging on the region of interest at any position of a large-sized object, which reduces to a great extent the radiation dose of the X-ray during the CT scanning.

摘要翻译： 本发明公开了一种对被检查物体的感兴趣区域进行CT成像的方法，包括：获取感兴趣区域的CT投影数据; 获取区域B的CT投影数据; 选择覆盖感兴趣区域的一组PI线段，并计算组中每个PI线段的重建图像值; 并且将所有PI线段中的重建图像值组合以获得感兴趣区域的图像。 本发明还公开了一种使用该方法的CT成像装置及其中的数据处理器。 由于只要X射线束覆盖感兴趣区域和区域B，就可以精确地重构和获得感兴趣区域的2D / 3D切片图像，因此可以使用小尺寸检测器来执行CT成像 在大尺寸物体的任何位置处的感兴趣区域，其在CT扫描期间在很大程度上降低X射线的辐射剂量。

公开(公告)号：US20120106832A1

公开(公告)日：2012-05-03

申请号：US13140761

申请日：2011-05-11

申请人： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Zhifeng Huang

发明人： Liang Li ,  Zhiqiang Chen ,  Li Zhang ,  Kejun Kang ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Zhifeng Huang

IPC分类号： G06K9/00

CPC分类号： G06T11/006 ,  G06T2211/421

摘要： A method and apparatus for CT image reconstruction may include selecting, by a unit, projection data of the same height on a curve having a curvature approximate to that of the scanning circular orbit, implementing, by a unit, a weighting processing on the selected projection data, filtering, by a unit, the weighting processed projection data along a horizontal direction, implementing, by a unit, three-dimensional back projection on the filtered projection data along the direction of ray. The method and apparatus can effectively eliminate cone beam artifact under a large cone angle.

摘要翻译： 用于CT图像重建的方法和装置可以包括以单位选择具有接近于扫描圆形轨道的曲率的曲线上具有相同高度的投影数据，由单元实现对所选投影的加权处理 数据，单位滤波沿着水平方向的加权处理的投影数据，通过一个单元沿着沿着光线的方向实现对经滤波的投影数据的三维反投影。 该方法和装置可以有效地消除大锥角下的锥束伪影。

公开(公告)号：US20120085909A1

公开(公告)日：2012-04-12

申请号：US13126067

申请日：2010-12-29

申请人： Zhiqiang Chen ,  Ziran Zhao ,  Yuanjing Li ,  Wanlong Wu ,  Yinong Liu ,  Li Zhang ,  Dong Lin ,  Zongjun Shen ,  Xilei Luo ,  Zhimin Zheng ,  Yingkang Jin ,  Shu Cao ,  Bin Sang

发明人： Zhiqiang Chen ,  Ziran Zhao ,  Yuanjing Li ,  Wanlong Wu ,  Yinong Liu ,  Li Zhang ,  Dong Lin ,  Zongjun Shen ,  Xilei Luo ,  Zhimin Zheng ,  Yingkang Jin ,  Shu Cao ,  Bin Sang

IPC分类号： G01J5/02

CPC分类号： G01V8/005 ,  G01K11/006 ,  G01N22/00

摘要： The present invention discloses a millimeter-wave inspection apparatus. The millimeter-wave inspection apparatus comprises: optics devices, configured to receive millimeter-wave energy radiated from an object to be inspected and focus the received millimeter-wave energy; a radiometer receiving device configured to receive the focused millimeter-wave energy and transform the millimeter-wave energy into electrical signal; and an imaging device configured to generate a temperature image of the object to be inspected based on the electrical signal. Compared with the prior art, the millimeter-wave inspection apparatus of the present invention has a simple and compact structure; it would not be harmful to the human health by employing the passive millimeter-wave human body security inspection technology. With the above configuration, the contraband items to be concealed within the human clothing can be efficiently and effectively detected.

摘要翻译： 本发明公开了一种毫米波检测装置。 毫米波检查装置包括：光学装置，被配置为接收从待检查物体辐射的毫米波能量并聚焦接收的毫米波能量; 辐射计接收装置，被配置为接收聚焦的毫米波能量并将毫米波能量转换成电信号; 以及成像装置，被配置为基于所述电信号生成所述待检查对象的温度图像。 与现有技术相比，本发明的毫米波检测装置具有简单紧凑的结构; 采用被动毫米波人体安全检测技术对人体健康无害。 通过上述结构，能够有效且高效地检测隐藏在人体衣物中的违禁物品。

公开(公告)号：US08066102B2

公开(公告)日：2011-11-29

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： B66B9/02 ,  H01L21/68 ,  G21K5/10

CPC分类号： G01N23/046 ,  G01N2223/419

摘要： A lifting apparatus includes 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. The turntable device includes 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.

摘要翻译： 提升装置包括垂直导向装置，可沿着垂直导向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导向装置引导的向上和向下方向移动。 转盘装置包括：托架，其与所述垂直引导装置可滑动地接合并且垂直地朝向所述垂直引导装置的侧面突出;转台，其可旋转地设置在所述支架上;以及第二驱动装置，其使所述转盘旋转在所述支架上。

公开(公告)号：US08039803B2

公开(公告)日：2011-10-18

申请号：US12920161

申请日：2009-02-16

申请人： Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

发明人： Kejun Kang ,  Zhiqiang Chen ,  Li Zhang ,  Yingxin Wang ,  Ziran Zhao ,  Yuanjing Li ,  Yinong Liu ,  Zhifeng Huang ,  Yuxiang Xing

IPC分类号： G01J5/02

CPC分类号： G01N21/3581

摘要： A method for phase contrast imaging comprises: illuminating an object by terahertz radiation such that the terahertz radiation interacts with the object; illuminating a diffraction grating by the terahertz radiation that has interacted with the object; translating the diffraction grating along the direction of the grating wave vector, to measure, for each of different grating positions, an intensity distribution of the terahertz radiation that has interacted with the object and with the grating in a diffraction field; and retrieving a phase contrast image of the object from the intensity distributions. An apparatus for phase contrast imaging is also provided.

摘要翻译： 一种用于相位对比成像的方法包括：用太赫兹辐射照射物体，使得太赫兹辐射与物体相互作用; 用与物体相互作用的太赫兹辐射照射衍射光栅; 沿着光栅波矢的方向平移衍射光栅，以测量每个不同的光栅位置，在衍射场中与物体和光栅相互作用的太赫兹辐射的强度分布; 以及从所述强度分布中检索所述对象的相位对比图像。 还提供了一种用于相位成像的装置。

公开(公告)号：US20110211671A1

公开(公告)日：2011-09-01

申请号：US13089874

申请日：2011-04-19

申请人： Zhiqiang Chen ,  Li Zhang ,  Xuewu Wang ,  Haifeng Hu ,  Hongxin Wu ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yuxiang Xing ,  Hu Tang ,  Yumin Yi ,  Jinyu Zhang

发明人： Zhiqiang Chen ,  Li Zhang ,  Xuewu Wang ,  Haifeng Hu ,  Hongxin Wu ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Yuxiang Xing ,  Hu Tang ,  Yumin Yi ,  Jinyu Zhang

IPC分类号： G01N23/04

CPC分类号： G01N23/10 ,  A61B6/027 ,  G01N23/046 ,  G01N2001/022 ,  G01N2223/419 ,  G01N2223/423 ,  G01N2223/637 ,  G01N2223/639 ,  G01V5/00

摘要： Disclosed are a method and a device for security-inspection of liquid articles with dual-energy CT imaging. The method comprises the steps of obtaining one or more CT images including physical attributes of liquid article to be inspected by CT scanning and a dual-energy reconstruction method; acquiring the physical attributes of each liquid article from the CT image; and determining whether there are drugs concealed in the inspected liquid article based on the difference between the acquired physical attributes and reference physical attributes of the inspected liquid article. The CT scanning can be implemented by a normal CT scanning technique, or a spiral CT scanning technique. In the normal CT scanning technique, the scan position can be preset, or set by the operator with a DR image, or set by automatic analysis of the DR image.

摘要翻译： 公开了一种用于双能CT成像的液体物品的安全检查方法和装置。 该方法包括以下步骤：通过CT扫描获得包括待检查的液体物品的物理属性的一个或多个CT图像和双能量重建方法; 从CT图像获取每个液体物品的物理属性; 并且基于被检查的液体制品的所获取的物理属性和参考物理属性之间的差异来确定在被检查的液体制品中是否存在隐藏的药物。 CT扫描可以通过正常的CT扫描技术或螺旋CT扫描技术来实现。 在正常的CT扫描技术中，扫描位置可以由操作员预先设置，或者通过DR图像设置，或者通过DR图像的自动分析设置。

公开(公告)号：US07924975B2

公开(公告)日：2011-04-12

申请号：US12419603

申请日：2009-04-07

申请人： Li Zhang ,  Yinong Liu ,  Zhiqiang Chen ,  Yuanjing Li ,  Hewei Gao ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

发明人： Li Zhang ,  Yinong Liu ,  Zhiqiang Chen ,  Yuanjing Li ,  Hewei Gao ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

IPC分类号： G01N23/04

CPC分类号： G01V5/005 ,  G01B15/00 ,  G01V5/0016 ,  G03B42/00

摘要： In a linear track scanning imaging system and method, the imaging system may include: a ray generating unit having a plurality of ray sources that emit beams alternately, only one ray source at a time; an actuating arrangement causing an object under examination to move with respect to the linear track scanning imaging system along a linear track, leading the object to pass through a scanning area of the linear track scanning imaging system; a data collecting unit that collects projection data of the object for each ray source; an imaging unit that reconstructs an image of the object under examination based on the projection data collected for each ray source; and a display unit for displaying the reconstructed image.

摘要翻译： 在线性轨迹扫描成像系统和方法中，成像系统可以包括：具有交替地发射束的多个射线源的射线产生单元，一次只有一个射线源; 致动装置使被检查物体沿着线性轨迹相对于线性轨道扫描成像系统移动，使物体通过线性轨道扫描成像系统的扫描区域; 数据收集单元，收集每个射线源的物体的投影数据; 成像单元，其基于针对每个射线源收集的投影数据重建被检查物体的图像; 以及显示单元，用于显示重建图像。