公开(公告)号：US20100072361A1

公开(公告)日：2010-03-25

申请号：US12491458

申请日：2009-06-25

申请人： Yinong Liu ,  Ziran Zhao ,  Li Zhang ,  Wanlong Wu ,  Jin Cui ,  Dongmei Yu ,  Mingliang Li

发明人： Yinong Liu ,  Ziran Zhao ,  Li Zhang ,  Wanlong Wu ,  Jin Cui ,  Dongmei Yu ,  Mingliang Li

IPC分类号： H01J49/26

CPC分类号： G01V8/005

摘要： The invention provides a security inspection system for inspecting persons, characterized in that it comprises: a passageway which provides an inspection space isolated or partially isolated from an ambient environment, in which at least one sub-passageway allowing persons to be inspected to pass is provided in the inspection space, and each of the sub-passageways is provided with at least one millimeter wave imaging device for millimeter wave imaging of persons being inspected; and an ion mobility spectrometer for ionizing particles of substance or gases that are released or volatilized from the inspected persons into the air in the passageway and then measuring a mobility rate thereof under the action of the electric field to effect identification of substances. At least one radioactive substance inspection device may also be provided in the passageway to detect whether the person being inspected carries radioactive substances.

摘要翻译： 本发明提供了一种用于检查人员的安全检查系统，其特征在于，其包括：提供与周围环境隔离或部分隔离的检查空间的通道，其中允许检查人员通过的至少一个子通道 在检查空间中，并且每个子通道设置有用于被检查人员的毫米波成像的至少一个毫米波成像装置; 以及离子迁移谱仪，用于将从被检查者释放或挥发的物质或气体的颗粒离子化到通道中的空气中，然后在电场作用下测量其迁移率以实现物质的鉴定。 在通道中还可以设置至少一个放射性物质检查装置，以检测被检查者是否携带放射性物质。

公开(公告)号：US20090323894A1

公开(公告)日：2009-12-31

申请号：US12492739

申请日：2009-06-26

申请人： Haifeng Hu ,  Kejun Kang ,  Li Zhang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Zhen Wu

发明人： Haifeng Hu ,  Kejun Kang ,  Li Zhang ,  Xuewu Wang ,  Qingping Huang ,  Yuanjing Li ,  Yinong Liu ,  Ziran Zhao ,  Zhen Wu

IPC分类号： G01N23/06 ,  G01N23/04

CPC分类号： G01N23/04 ,  G01N2223/303 ,  G01N2223/423 ,  G01V5/0041

摘要： Disclosed are a method and a device for real-time mark for a high-energy X-ray dual-energy imaging container inspection system in the radiation imaging field. The method comprises the steps of emitting a first main beam of rays and a first auxiliary beam of rays having a first energy, and a second main beam of rays and a second auxiliary beam of rays having a second energy; causing the first and second main beams of rays transmitting through the article to be inspected; causing the first and second auxiliary beams of rays transmitting through at least one real-time mark material block; collecting values of the first and second main beams of rays that have transmitted through the article to be inspected as dual-energy data; collecting values of the first and second auxiliary beams of rays that have transmitted through the real-time mark material block as adjustment parameters; adjusting the set of classification parameters based on the adjustment parameters; and identifying the substance according to the dual-energy data based on adjusted classification parameters. The method according to the invention simplifies the mark procedure for a substance identification subsystem in a high-energy dual-energy system while improves the stability of the material differentiation result of the system.

摘要翻译： 公开了用于在辐射成像领域中的高能量X射线双能量成像容器检查系统的实时标记的方法和装置。 该方法包括以下步骤：发射第一主光束和具有第一能量的第一辅助光束和第二主射线束以及具有第二能量的第二辅助光束; 导致透过物品的第一和第二主光束被检查; 使得所述第一和第二辅助光束通过至少一个实时标记材料块传播; 收集通过待检测物品的第一和第二主光束的值作为双能数据; 收集通过实时标记材料块传输的第一和第二辅助光束的值作为调整参数; 根据调整参数调整分类参数集; 并根据调整后的分类参数，根据双能数据识别物质。 根据本发明的方法简化了高能双能系统中物质识别子系统的标记程序，同时提高了系统材料分化结果的稳定性。

公开(公告)号：US07580505B2

公开(公告)日：2009-08-25

申请号：US11647558

申请日：2006-12-29

申请人： Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Xuewu Wang ,  Chuanxiang Tang ,  Liming Wang ,  Yinong Liu ,  Yaohong Liu ,  Li Zhang ,  Jianmin Li ,  Huaqiang Zhong ,  Jianping Cheng ,  Huaibi Chen ,  Hua Peng ,  Yali Xie ,  Junli Li ,  Ning Kang ,  Qinghua Li

发明人： Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Xuewu Wang ,  Chuanxiang Tang ,  Liming Wang ,  Yinong Liu ,  Yaohong Liu ,  Li Zhang ,  Jianmin Li ,  Huaqiang Zhong ,  Jianping Cheng ,  Huaibi Chen ,  Hua Peng ,  Yali Xie ,  Junli Li ,  Ning Kang ,  Qinghua Li

IPC分类号： G01N23/04

CPC分类号： G01N23/087 ,  A61B6/4241 ,  A61B6/482 ,  G01V5/0041

摘要： The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.

摘要翻译： 本发明公开了一种使用多能量辐射检查物体的方法及其装置。 该方法包括以下步骤：使多能量辐射与被检查物体相互作用; 在多能量辐射与检测对象之间的相互作用之后检测和记录检测值; 将一部分检测值代入预定校准函数以获得包括主要材料属性的信息; 以及通过应用适于对应于所述信息的能带的一组函数来确定所述对象的其他材料属性。 本发明适用于在海关，港口和机场不开放集装箱的大型集装箱货物检验。

公开(公告)号：US07508918B2

公开(公告)日：2009-03-24

申请号：US11525692

申请日：2006-09-22

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

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

IPC分类号： G21K1/04

CPC分类号： G21K1/04

摘要： A collimator for adjusting an X-ray beam includes: an up-and-down adjustment mechanism; a left-and-right adjustment mechanism, a supporting member; and an adjusting plate connected with the supporting member. The up-and-down adjustment mechanism comprises first rotating nuts, up-and-down moving leading screws threadedly connected with the first rotating nuts, and upper and lower sliding stops located in the supporting member. Each of the leading screws is connected with the upper and lower sliding stops to drive the upper and lower sliding stops, respectively, to vertically move. The left-and-right adjustment mechanism comprises second rotating nuts, horizontally moving leading screws connected with second rotating nuts, and left and right sliding stops located in the supporting member. Each of the horizontally moving leading screws are connected with the left and right sliding stops to drive the left and right sliding stops, respectively, to horizontally move.

摘要翻译： 用于调整X射线束的准直器包括：上下调节机构; 左右调节机构，支撑构件; 以及与支撑构件连接的调节板。 上下调节机构包括第一旋转螺母，与第一旋转螺母螺纹连接的上下移动的引导螺钉，以及位于支撑构件中的上下滑动止动件。 每个前导螺钉与上下滑动止动件连接以分别驱动上下滑动止动件垂直移动。 左右调节机构包括第二旋转螺母，与第二旋转螺母连接的水平移动的导螺杆，以及位于支撑构件中的左右滑动止动件。 每个水平移动的前导螺钉与左右滑动止动件分别连接以驱动左右滑动止动件水平移动。

公开(公告)号：US20090060129A1

公开(公告)日：2009-03-05

申请号：US12204525

申请日：2008-09-04

申请人： Kejun KANG ,  Ziran ZHAO ,  Hua PENG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Yinong LIU ,  Li ZHANG ,  Yaohong LIU ,  Zhizhong LIANG ,  Dongmao LI ,  Cong LIU ,  Huabin TAN ,  Yongpeng LIU ,  Xinhui DUAN ,  Xueyou ZHOU

发明人： Kejun KANG ,  Ziran ZHAO ,  Hua PENG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Yinong LIU ,  Li ZHANG ,  Yaohong LIU ,  Zhizhong LIANG ,  Dongmao LI ,  Cong LIU ,  Huabin TAN ,  Yongpeng LIU ,  Xinhui DUAN ,  Xueyou ZHOU

IPC分类号： G01N23/04

CPC分类号： G01V5/0008

摘要： A device for inspecting contraband in an aviation cargo container includes: a turntable and a scanning system, the scanning system including a radiation source; a detector; a radiation source mounting structure; and a detector mounting structure for mounting the detector. Each of said radiation source mounting structure and said detector mounting structure includes at least one column assembly. The radiation source and the detector are mounted on the column assembly and allowed to synchronously ascend and descend along said column assembly. By combining different movement modes of the turntable and the scanning system, the device of the present invention can scan the object in various scanning modes. The device is stable in structure, convenient in installation, and occupies a small space. The device can inspect aviation containers over two meters long and/or over two meters wide and achieve a relatively high passing rate of the objects.

摘要翻译： 一种用于在航空货物集装箱中检查违禁品的装置包括：转台和扫描系统，所述扫描系统包括辐射源; 检测器 辐射源安装结构; 以及用于安装检测器的检测器安装结构。 所述辐射源安装结构和所述检测器安装结构中的每一个包括至少一个柱组件。 辐射源和检测器安装在柱组件上，允许沿着柱组件同步地上升和下降。 通过组合转盘和扫描系统的不同移动模式，本发明的装置可以以各种扫描模式扫描对象。 该装置结构稳定，安装方便，占地面积小。 该装置可以检查两米长和/或两米以上的航空集装箱，达到相对较高的通过率。

公开(公告)号：US20090010387A1

公开(公告)日：2009-01-08

申请号：US12165846

申请日：2008-07-01

申请人： Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Liming Wang ,  Yinong Liu ,  Shangmin Sun ,  Li Zhang ,  Yaohong Liu ,  Guang Yang ,  Qingjun Zhang ,  Wenguo Liu ,  Siyuan Liang ,  Zhenbin Guo ,  Bin Hu ,  Yanli Deng ,  Yucheng Wu

发明人： Kejun Kang ,  Zhiqiang Chen ,  Yuanjing Li ,  Liming Wang ,  Yinong Liu ,  Shangmin Sun ,  Li Zhang ,  Yaohong Liu ,  Guang Yang ,  Qingjun Zhang ,  Wenguo Liu ,  Siyuan Liang ,  Zhenbin Guo ,  Bin Hu ,  Yanli Deng ,  Yucheng Wu

IPC分类号： G01N23/04

CPC分类号： G01N23/04

摘要： The present invention discloses an radiation imaging system, comprising: an accelerator for generating rays which penetrate through the objects to be inspected and an synchronous signal; a detector with a plurality of detecting modules, adapted for detecting rays; a signal processor for generating a selection signal according to the synchronous signal, so as to select a detecting module for detecting the rays; a data converter for converting the signal detected by said detecting module into digital data, and then buffering the digital data in said signal processor; and a communication controller connected to an image processor, adapted for transmitting the digital data buffered in said signal processor to said image processor. The system according to the present invention allows high-speed and stable data acquisition and data conversion and accurate and reliable data transmission, when the data amount is significant.

摘要翻译： 本发明公开了一种辐射成像系统，包括：用于产生穿过待检查物体的射线的加速器和同步信号; 具有多个检测模块的检测器，适于检测射线; 信号处理器，用于根据同步信号产生选择信号，以便选择用于检测光线的检测模块; 数据转换器，用于将由所述检测模块检测的信号转换为数字数据，然后在所述信号处理器中缓冲数字数据; 以及连接到图像处理器的通信控制器，适于将缓冲在所述信号处理器中的数字数据发送到所述图像处理器。 当数据量显着时，根据本发明的系统允许高速稳定的数据采集和数据转换以及准确可靠的数据传输。

公开(公告)号：US20080310598A1

公开(公告)日：2008-12-18

申请号：US12075463

申请日：2008-03-11

申请人： Li Zhang ,  Zhiqiang Chen ,  Guowei Zhang ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

发明人： Li Zhang ,  Zhiqiang Chen ,  Guowei Zhang ,  Jianping Cheng ,  Yuanjing Li ,  Yinong Liu ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao

IPC分类号： G01D18/00 ,  G06K9/00

CPC分类号： G01T7/005 ,  G01T1/1648

摘要： A method for calibrating a dual-energy CT system and an image reconstruction method are disclosed to calculate images of atomic number and density of a scanned object as well as its attenuation coefficient images at any energy level. The present invention removes the effect from a cupping artifact due to X-ray beam hardening. The method for calibrating a dual-energy CT system is provided comprising steps of selecting at least two different materials, detecting penetrative rays from dual-energy rays penetrating said at least two different materials under different combinations of thickness to acquire projection values, and creating a lookup table in a form of correspondence between said different combinations of thickness and said projection values. The image reconstruction method is provided comprising steps of scanning an object with dual-energy rays to acquire dual-energy projection values, calculating projection values of base material coefficients corresponding to said dual-energy projection values based on a pre-created lookup table, and reconstructing an image of base material coefficient distribution based on said projection values of base material coefficients. In this way, images of atomic number and density of an object as well as its attenuation coefficient images can be calculated from the images of the distribution of base material coefficients. Compared with the prior art technique, the method proposed in the present invention has advantages of simple calibration procedure, high calculation precision and invulnerability to X-ray beam hardening.

摘要翻译： 公开了用于校准双能量CT系统和图像重建方法的方法，以计算被扫描物体的原子序数和密度以及其在任何能级的衰减系数图像的图像。 本发明消除了由于X射线束硬化引起的拔罐伪影的影响。 提供了一种用于校准双能量CT系统的方法，包括以下步骤：选择至少两种不同的材料，从不同厚度的组合穿透所述至少两种不同材料的双能量射线检测穿透射线，以获得投影值， 以所述不同的厚度组合和所述投影值之间的对应形式的查找表。 提供了图像重建方法，包括以下步骤：用双能量射线扫描物体以获取双能量投影值，基于预先创建的查找表计算与所述双能量投影值相对应的基材系数的投影值，以及 基于所述基材系数的投影值重构基材系数分布的图像。 以这种方式，可以从基材系数分布的图像中计算出物体的原子数和密度以及衰减系数图像的图像。 与现有技术相比，本发明提出的方法具有校准过程简单，计算精度高，X射线束硬化无效的优点。

公开(公告)号：US07424089B2

公开(公告)日：2008-09-09

申请号：US11546717

申请日：2006-10-12

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

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

IPC分类号： H05G1/60

CPC分类号： G01N23/046 ,  A61B6/032 ,  G01N2223/3303 ,  G01N2223/419 ,  G06T11/006 ,  G06T2211/421

摘要： It is disclosed a system and a method for reconstructing an image by using a straight-line trajectory scan to avoid image spatial resolution reduction due to interpolations in angular direction and detector direction during data rebinning. This system comprises: a projection data conversion section for converting projection data from straight-line trajectory scan into projection data under quasi-parallel-beam scan; a filtration section for obtaining filtered projection data by convoluting the projection data under quasi-parallel-beam scan with a predetermined convolutional kernel; and a back-projection section for reconstructing an image by back-projecting the filtered projection data with a weighting factor. By using the inventive system and method, the spatial resolution in the reconstructed image is improved, and the influence of data truncation on the reconstructed image is reduced. The present invention applies the filtration and back-projection mode, and thus has general advantages of the filtration and back projection, such as simplicity and efficiency. And it is easy to be parallelized and accelerated.

摘要翻译： 公开了一种通过使用直线轨迹扫描来重建图像的系统和方法，以避免在数据重组期间由于在角度方向和检测器方向上的内插而导致的图像空间分辨率降低。 该系统包括：投影数据转换部分，用于将投影数据从直线轨迹扫描转换成准并行束扫描的投影数据; 过滤部分，用于通过用预定的卷积核在准平行束扫描下卷积投影数据来获得经滤波的投影数据; 以及背投影部分，用于通过用加权因子反投影过滤的投影数据来重建图像。 通过使用本发明的系统和方法，改善了重建图像中的空间分辨率，减少了数据截断对重建图像的影响。 本发明应用过滤和反投影模式，因此具有过滤和反投影的一般优点，例如简单性和效率。 并行并行加速很容易。

公开(公告)号：US07386093B2

公开(公告)日：2008-06-10

申请号：US11285398

申请日：2005-11-23

申请人： Wanlong Wu ,  Haifeng Hu ,  Yuanjing Li ,  Zhiqiang Chen ,  Kejun Kang ,  Yulan Li ,  Li Zhang ,  Yinong Liu ,  Xuewu Wang ,  Bin Sang ,  Hailin Wang

发明人： Wanlong Wu ,  Haifeng Hu ,  Yuanjing Li ,  Zhiqiang Chen ,  Kejun Kang ,  Yulan Li ,  Li Zhang ,  Yinong Liu ,  Xuewu Wang ,  Bin Sang ,  Hailin Wang

IPC分类号： G01N23/083 ,  G01N23/087

CPC分类号： G01V5/0016 ,  G01N9/24 ,  G01N23/10

摘要： A method and an apparatus for liquid safety-detection with a radiation source relate to a radiation detecting technology. The main steps of the method of the invention are: conveying an article to be detected into an operation zone within a radiation shield; allowing a ray beam to be emitted from the radiation source, to pass through the article to be detected, and to be received by a detector; transmitting the received ray signal to a data collector by the detector; amplifying and forming the ray signal, and transmitting such data to a data processing computer by the data collector, and transmitting a data collected by thickness measuring probing heads to the data processing computer by the same; and processing a data from the data collector and a data from the thickness measuring probing heads to derive the density and atomic number of the detected liquid, comparing a result with the densities and atomic numbers of dangerous articles in a existing database, and displaying the detected information of the detected article, by the data processing computer. Comparing to the prior art, the invention is not subjected to the affection of the outside package of an article and has great anti-interference, and has the features of small volume, high accuracy of detection, easy shielding, and high use safety and reliability.

摘要翻译： 用于具有辐射源的液体安全检测的方法和装置涉及放射线检测技术。 本发明方法的主要步骤是将待检测物品输送到辐射屏蔽内的操作区域; 允许射线束从辐射源发射，通过要检测的物品，并被检测器接收; 通过检测器将接收到的射线信号传输到数据采集器; 放大和形成射线信号，并由数据收集器将这些数据发送到数据处理计算机，并将由厚度测量探测头收集的数据发送到数据处理计算机; 并且从数据收集器处理数据和来自厚度测量探测头的数据以导出检测到的液体的密度和原子序数，将结果与现有数据库中的危险物品的密度和原子数进行比较，并显示检测到的 通过数据处理计算机检测到的物品的信息。 与现有技术相比，本发明不受制品外包装的影响，抗干扰性强，具有体积小，检测精度高，屏蔽方便，使用安全可靠的特点 。

公开(公告)号：US20070075073A1

公开(公告)日：2007-04-05

申请号：US11523779

申请日：2006-09-19

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

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

IPC分类号： H05B6/76

CPC分类号： E06B5/18 ,  E06B3/42 ,  G21F7/005 ,  G21Y2002/207 ,  G21Y2002/501 ,  G21Y2004/30

摘要： The present invention relates to a radiation inspection system discloses a shielding door device for a radiation inspection system, comprising a door body, two guides located on two opposite sides of the door body, a rack, a gear and a motor. The two guides are fixed on an upper surface of a frame and the door body is movably connected to the two guides via bearings. The rack is fixed on a bottom of the door body and meshed with the gear. The gear is coupled with a shaft of the motor fixed on a lower surface of the frame. With the above configuration, the present invention is advantageous in automatic and complete shielding of the radiation inspection system without interference. In addition the shielding door can be controlled intelligently, so that accidental radiation leakage can be prevented.

摘要翻译： 辐射检查系统技术领域本发明涉及一种辐射检查系统，该辐射检查系统公开了一种用于辐射检查系统的屏蔽门装置，包括门体，位于门体两侧的两个导轨，齿条，齿轮和马达。 两个引导件固定在框架的上表面上，门体通过轴承可移动地连接到两个引导件。 机架固定在门体的底部并与齿轮啮合。 齿轮与固定在框架的下表面上的马达的轴联接。 利用上述结构，本发明在辐射检测系统的自动完全屏蔽和无干扰的情况下是有利的。 此外，可以智能地控制屏蔽门，从而可以防止意外的辐射泄漏。