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41. 发明授权

US07702070B2 Device and method for inspecting contraband in aviation cargo container 有权
标题翻译：航空货柜检查违禁品的装置及方法
公开(公告)号：US07702070B2
公开(公告)日：2010-04-20
申请号：US12204491
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： G01V5/005
摘要： A device for inspecting contraband in an aviation cargo containers includes: a turntable located at an object inspecting position and configured to carry the object to be inspected and bring the object into rotation; an object conveying system; a scanning system including a radiation source and a detector which can synchronously move in the vertical direction; a turntable drive/control system which drives and controls rotation of said turntable so that the turntable can continuously rotate about its rotation axis or rotate to any predetermined angular position; a scanning drive/control system which drives and controls the radiation source and the detector into synchronous movement in the vertical direction so that the radiation source and the detector can continuously move in the vertical direction or move to any predetermined vertical position. The device of the present invention can scan the object and form images in various scanning modes to meet different needs.
摘要翻译：一种用于检查航空货物集装箱中的违禁品的装置，包括：位于物体检查位置的转盘，其构造成承载被检查物体并使物体旋转; 物体输送系统; 包括能够沿垂直方向同步移动的辐射源和检测器的扫描系统; 转盘驱动/控制系统，其驱动和控制所述转台的旋转，使得转盘可以围绕其旋转轴线连续旋转或旋转到任何预定的角位置; 扫描驱动/控制系统，其将辐射源和检测器驱动并控制在垂直方向上的同步运动，使得辐射源和检测器可以在垂直方向上连续移动或移动到任何预定的垂直位置。本发明的装置可以扫描对象并以各种扫描模式形成图像以满足不同的需要。

42. 发明授权

US07672427B2 Imaging system 有权
标题翻译：成像系统
公开(公告)号：US07672427B2
公开(公告)日：2010-03-02
申请号：US11545255
申请日：2006-10-10
申请人： Zhiqiang Chen , Li Zhang , Hewei Gao , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
发明人： Zhiqiang Chen , Li Zhang , Hewei Gao , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
IPC分类号： G01N23/04
CPC分类号： G01N23/04 , A61B6/027
摘要： 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.
摘要翻译：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。

43. 发明申请

US20100040192A1 IMAGE RECONSTRUCTION METHOD FOR HIGH-ENERGY, DUAL-ENERGY CT SYSTEM 有权
标题翻译：用于高能量，双能量CT系统的图像重建方法
公开(公告)号：US20100040192A1
公开(公告)日：2010-02-18
申请号：US12509977
申请日：2009-07-27
申请人： Li Zhang , Zhiqiang Chen , Kejun Kang , Haifeng Hu , Yuxiang Xing , Xinhui Duan , Yuanjing Li , Yinong Liu , Qingping Huang
发明人： Li Zhang , Zhiqiang Chen , Kejun Kang , Haifeng Hu , Yuxiang Xing , Xinhui Duan , Yuanjing Li , Yinong Liu , Qingping Huang
IPC分类号： A61B6/00
CPC分类号： G01V5/005 , G01V5/0041
摘要： 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.
摘要翻译：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。

44. 发明授权

US07634055B2 Method and device for security-inspection of liquid articles with radiations 有权
标题翻译：液体制品与辐射的安全检查方法和装置
公开(公告)号：US07634055B2
公开(公告)日：2009-12-15
申请号：US11634330
申请日：2006-12-05
申请人： Haifeng Hu , Yuanjing Li , Kejun Kang , Zhiqiang Chen , Yinong Liu , Yulan Li , Li Zhang , Wanlong Wu , Ziran Zhao , Xilei Luo , Bin Sang
发明人： Haifeng Hu , Yuanjing Li , Kejun Kang , Zhiqiang Chen , Yinong Liu , Yulan Li , Li Zhang , Wanlong Wu , Ziran Zhao , Xilei Luo , Bin Sang
IPC分类号： G01B15/02 , G01N23/04
CPC分类号： G01N23/10
摘要： Disclosed is a method and a device for security-inspection of liquid articles with radiations, which relate to the field of radiation inspection technology. The method comprises steps of acquiring original environment information, emitting radiation beams to transmit the liquid articles, receiving the radiation beams transmitted through the liquid articles to form multi-angle projection data, computing a radiation absorption coefficient of the liquid articles to be detected by inverse operation of the multi-angle projection data, based on the initial environmental information and the uniformity of the liquid articles, and comparing the radiation absorption coefficients with the preset data to get the relevant information of the liquid articles. Comparing with the prior art, the present invention is not subjected to affection of cuter package of the liquid article, and is advantageous of high anti-jamming high accuracy, high safety and reliability, low cost and small size.
摘要翻译：公开了一种与放射线检测技术相关的液体物品的辐射安全检查的方法和装置。该方法包括以下步骤：获取原始环境信息，发射辐射束以透射液体物品，接收通过液体物品传播的辐射束以形成多角度投影数据;计算待反应的待检测液体物品的辐射吸收系数基于初始环境信息和液体制品的均匀性，多个投影数据的操作，以及将辐射吸收系数与预设数据进行比较以获得液体物品的相关信息。与现有技术相比，本发明不受液体制品外包装的影响，具有抗干扰性高，安全可靠，成本低，体积小的优点。

45. 发明授权

US07400706B2 Method and apparatus for liquid safety-detection by backscatter with a radiation source 有权
标题翻译：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：US07400706B2
公开(公告)日：2008-07-15
申请号：US11285395
申请日：2005-11-23
申请人： Yulan Li , Haifeng Hu , Yinong Liu , Zhiqiang Chen , Kejun Kang , Li Zhang , Wanlong Wu , Yuanjing Li , Yi Wang , Wenjun He , Mingrui Qi
发明人： Yulan Li , Haifeng Hu , Yinong Liu , Zhiqiang Chen , Kejun Kang , Li Zhang , Wanlong Wu , Yuanjing Li , Yi Wang , Wenjun He , Mingrui Qi
IPC分类号： G01N23/203
CPC分类号： G01N23/20066 , G01N23/203 , G01N2223/637 , G01V5/0025
摘要： A method and an apparatus for liquid safety-detection by backscattering with a radiation source are provided that 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) placing a liquid article to be detected onto a rotatable platform; 2) emitting a ray from the radiation source, said ray 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 a warning if the density of the detected article is consistent with that of a dangerous article. Compared to the prior art, the invention is convenient to use, detects rapidly and accurately, has a strong anti-interference, is very safe and reliable to use, and protection is easy.
摘要翻译：提供了一种与放射线检测技术领域相关的用于利用辐射源的后向散射进行液体安全检测的方法和装置。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）将要检测的液体物品放置在可旋转平台上; 2）从辐射源发射光线，所述光线在通过液体物品的包装层之后在液体表面引起康普顿散射; 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的数据传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危险物品的密度进行比较，并给出如果检测到的物品的密度与危险物品的密度一致，则警告。与现有技术相比，本发明使用方便，检测快速准确，抗干扰性强，使用安全可靠，保护容易。

46. 发明申请

US20080131312A1 Mobile electron beam radiation sterilizing apparatus 有权
标题翻译：手机电子束辐射灭菌装置
公开(公告)号：US20080131312A1
公开(公告)日：2008-06-05
申请号：US11811313
申请日：2007-06-08
申请人： Kejun Kang , Huayi Zhang , Zhiqiang Chen , Yuanjing Li , Chuanxiang Tang , Yaohong Liu , Huaibi Chen , Huaping Tang , Nan Jiang , Dongsheng Zhang , Yu He , Feng Gao , Weiqiang Guan , Jian Li , Yanfeng Cao
发明人： Kejun Kang , Huayi Zhang , Zhiqiang Chen , Yuanjing Li , Chuanxiang Tang , Yaohong Liu , Huaibi Chen , Huaping Tang , Nan Jiang , Dongsheng Zhang , Yu He , Feng Gao , Weiqiang Guan , Jian Li , Yanfeng Cao
IPC分类号： A61L2/00
CPC分类号： A61L2/087 , A61L2/24 , A61L2202/16 , A61L2202/24
摘要： The present invention discloses a mobile electron beam radiation sterilizing apparatus, comprising: a movable chassis vehicle (1); a cabinet body (2) installed on the chassis vehicle (1); an electron accelerator (6) which generates electron beam for articles to be radiation-processed; an accelerator control box (31), which controls operation of the accelerator, wherein the electron accelerator (6) is provided in the cabinet body. The invention has advantages as following: since the electron accelerator is provided in the cabinet body of the chassis vehicle, it has a small volume with flexible maneuverability, which can be transferred rapidly in a short time. In addition, the apparatus has no additional requirement of using environment, and does not need any additional construction. The invention can implement electron beam radiation for all kinds of documents and mails and achieve rapid and complete sterilization, reaching safety purpose. Further, there is no damage or residual radiation for the processed articles. Moreover, the apparatus has a high degree of automation assembly with easy operations and safety. Thus, it is suitable for chief departments at home and abroad.
摘要翻译：本发明公开了一种移动式电子束辐射灭菌装置，其特征在于，包括：可动底盘车辆（1）; 安装在底盘车辆（1）上的机壳体（2）; 电子加速器（6），其产生用于待辐射处理的物品的电子束; 加速器控制箱（31），其控制加速器的操作，其中电子加速器（6）设置在机壳主体中。本发明具有以下优点：由于电子加速器设置在底盘车厢的机壳体中，所以具有体积小，机动性灵活的特点，能够在短时间内迅速传递。此外，该设备不需要使用环境，并且不需要任何额外的结构。本发明可以实现各种文件和邮件的电子束辐射，实现快速，完整的灭菌，达到安全目的。此外，处理物品没有损坏或残留辐射。此外，该装置具有高度的自动化组装，操作和安全性容易。因此适用于国内外主要部门。

47. 发明申请

US20070116175A1 System and method for reconstructing image by using straight-line trajectory scan 有权
标题翻译：使用直线轨迹扫描重建图像的系统和方法
公开(公告)号：US20070116175A1
公开(公告)日：2007-05-24
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 , A61B6/00 , G01N23/00 , G21K1/12
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。

48. 发明申请

US20060115044A1 Method and an apparatus for liquid safety-detection with a radiation source 有权
标题翻译：用于辐射源的液体安全检测方法和装置
公开(公告)号：US20060115044A1
公开(公告)日：2006-06-01
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： G01N23/04
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 field. The main steps of the method of the invention are: an article to be detected being conveyed into an operation zone within a radiation shield field; the ray emitted from a radiation source passing through the article to be detected, and being received by a detector; the detector transmitting the received ray signal to a data collector; the data collector amplifying and forming the ray signal, and transmitting such data and the data collected by thickness measuring probing heads to a data processing computer; and the data processing computer processing the two groups of data to derive the density and atomic number of the detected liquid, comparing the result with the densities and atomic numbers of dangerous articles in a existing database, and displaying the detected information of the detected article. 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辐射检测技术领域。本发明方法的主要步骤是：被检测物品被传送到辐射屏蔽场内的操作区域; 从通过要检测的物品的辐射源发出的射线并被检测器接收; 所述检测器将所接收的射线信号发送到数据收集器; 数据收集器放大并形成射线信号，并将这些数据和由厚度测量探测头收集的数据发送到数据处理计算机; 并且数据处理计算机处理两组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，并显示检测到的物品的检测信息。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。

49. 发明申请

US20120288066A1 SCANNING DEVICE USING RADIATION BEAM FOR BACKSCATTER IMAGING AND METHOD THEREOF 有权
标题翻译：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。

50. 发明授权

US08306180B2 Image reconstruction method for high-energy, dual-energy CT system 有权
标题翻译：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
申请人： Li Zhang , Zhiqiang Chen , Kejun Kang , Haifeng Hu , Yuxiang Xing , Xinhui Duan , Yuanjing Li , Yinong Liu , Qingping Huang
发明人： Li Zhang , Zhiqiang Chen , Kejun Kang , Haifeng Hu , Yuxiang Xing , Xinhui Duan , Yuanjing Li , Yinong Liu , Qingping Huang
IPC分类号： A61B6/00 , G01N23/04
CPC分类号： G01V5/005 , G01V5/0041
摘要： 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.
摘要翻译：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。

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