公开(公告)号：US20110024624A1

公开(公告)日：2011-02-03

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： H01L31/09 ,  H01L31/0232

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 comprises: a terahertz radiation emitter for generating terahertz radiation, which illuminates an object to interact with the object; a diffraction grating, which is illuminated by the terahertz radiation that has interacted with the object; a terahertz radiation detector for measuring, 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 a data collecting and processing system for retrieving a phase contrast image of the object from the intensity distributions.

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。 用于相位对比成像的装置包括：太赫兹辐射发射器，用于产生太赫兹辐射，其照亮物体与物体相互作用; 衍射光栅，其被与物体相互作用的太赫兹辐射照射; 太赫兹辐射检测器，用于针对每个不同的光栅位置，在衍射场中测量与物体和光栅相互作用的太赫兹辐射的强度分布; 以及用于从强度分布中检索对象的相位对比图像的数据收集和处理系统。

公开(公告)号：US07722251B2

公开(公告)日：2010-05-25

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： H05G1/02 ,  G01N23/083

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：US07675037B2

公开(公告)日：2010-03-09

申请号：US11964363

申请日：2007-12-26

申请人： Yuanjing Li ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

发明人： Yuanjing Li ,  Bing Feng ,  Ziran Zhao ,  Yingxin Wang ,  Dongmei Yu

IPC分类号： G01J5/02

CPC分类号： G01J3/42 ,  G01J3/4531 ,  G01N21/3586

摘要： A method and an apparatus for measuring terahertz time-domain spectrum, which relate to the field of terahertz time-domain spectrum. The method comprises the steps of: generating a first pulse laser beam from a first femtosecond laser device at a preset repetition frequency to generate THz pulses; generating a second pulse laser beam from a second femtosecond laser device at the repetition frequency; measuring electric field intensities of the THz pulses at respective phase differences between the first pulse laser beam and the second pulse laser beam; and obtaining a THz time-domain spectroscopy by performing Fourier transformation of data representative of the electric field intensities. THz spectrum measured according to the method and apparatus improves spectroscopy resolution and provides a broader detection range.

摘要翻译： 一种用于测量太赫兹时域光谱的方法和装置，涉及太赫兹时域光谱领域。 该方法包括以下步骤：以预设的重复频率从第一飞秒激光装置产生第一脉冲激光束以产生THz脉冲; 以重复频率从第二飞秒激光装置产生第二脉冲激光束; 在第一脉冲激光束和第二脉冲激光束之间的相位差测量THz脉冲的电场强度; 并且通过对代表电场强度的数据进行傅里叶变换来获得THz时域光谱。 根据方法和装置测量的太赫兹光谱提高了光谱分辨率，并提供了更广泛的检测范围。

公开(公告)号：US20090289183A1

公开(公告)日：2009-11-26

申请号：US12422427

申请日：2009-04-13

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Wen He ,  Hui Li ,  Zhongxia Zhang

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Wen He ,  Hui Li ,  Zhongxia Zhang

IPC分类号： H01J49/26

CPC分类号： G01N1/02 ,  G01N1/405 ,  G01N27/622 ,  G01N2001/028 ,  Y10T436/2575

摘要： A sample processing system and a sample processing method for a trace detector are disclosed. The system comprises a sampling substrate for collecting a substance or substances from the surface of an object to be tested by contacting the sampling substrate with the surface of the object, and a trace detector. The trace detector includes a sample feeding device provided with a sample feeding part. The substance collected by the sampling substrate can be transferred to a surface of the sample feeding part so that the substance transferred to the surface of the sample feeding part can be detected. With the configuration of some embodiments of the present invention, a sampling substrate made of chemical fiber is used to collect a sample from the surface of an object to be tested by contacting the sampling substrate with the surface of the object to be tested. The sample collected by the sampling substrate is mechanically transferred to a metal film or mesh of the sample feeding device of the trace detector. Then, the metal film or mesh of the sample feeding device is heated to vaporize the sample and to release the sample vapor into the trace detector. Therefore, the efficiency of sample collection and desorption processes can be improved. In addition, the direct heating of a sampling substrate can be avoided so as to decrease the interference of the sampling substrate with trace detection.

摘要翻译： 公开了一种用于跟踪检测器的样品处理系统和样品处理方法。 该系统包括：采样基板，用于通过使采样基板与物体的表面接触并从待测物体的表面收集物质或物质;以及轨迹检测器。 痕量检测器包括具有样品供给部的样品供给装置。 由采样基板收集的物质可以转移到样品供给部的表面，从而可以检测转移到样品供给部的表面的物质。 利用本发明的一些实施例的结构，由化学纤维制成的采样衬底用于通过使采样衬底与待测试物体的表面接触从待测物体的表面收集样品。 由采样基板收集的样品被机械转移到迹线检测器的样品供给装置的金属膜或网孔。 然后，加热样品供给装置的金属膜或网，使样品蒸发并将样品蒸气释放到痕量检测器中。 因此，可以提高样品收集和解吸过程的效率。 此外，可以避免采样衬底的直接加热，从而降低采样衬底与痕量检测的干扰。

公开(公告)号：US20090168959A1

公开(公告)日：2009-07-02

申请号：US12342531

申请日：2008-12-23

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Yulan Li ,  Li Zhang ,  Wanlong Wu ,  Hua Peng ,  Yinong Liu ,  Zirao Zhao ,  Xuewu Wang ,  Shangmin Sun ,  Bin Sang ,  Hailin Wang ,  Quanwei Song ,  Jinyu Zhang

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Yulan Li ,  Li Zhang ,  Wanlong Wu ,  Hua Peng ,  Yinong Liu ,  Zirao Zhao ,  Xuewu Wang ,  Shangmin Sun ,  Bin Sang ,  Hailin Wang ,  Quanwei Song ,  Jinyu Zhang

IPC分类号： G01N23/04

CPC分类号： G01V5/005 ,  G01V5/0041 ,  Y10S378/901

摘要： The present invention discloses a detecting method of the article detection apparatus composed of an individual DR subsystem and an individual CT subsystem, the method comprising: obtaining a first projection data on ray attenuation coefficient by using the DR subsystem to project the A-layer of an article at a first projection angle, and obtaining a second projection data on ray attenuation coefficient by using the CT subsystem to project the A-layer of the article at a second projection angle different from the first projection angle; and judging whether the A-layer of the detected article exists a dangerous article based on the first projection data and the second projection data so as to obtain a first judgment on the A-layer of the detected article. In the present invention, by combining the projection data of the DR subsystem and the projection data of the CT subsystem, the data information to be used to judge the detected article is greatly increased, therefore, both the detection accuracy and speed are improved.

摘要翻译： 本发明公开了一种由个体DR子系统和单个CT子系统组成的物品检测装置的检测方法，该方法包括：通过使用DR子系统获得关于射线衰减系数的第一投影数据，以投影A 并且通过使用CT子系统以不同于第一投影角的第二投影角投影物品的A层来获得关于射线衰减系数的第二投影数据; 以及基于所述第一投影数据和所述第二投影数据来判断检测到的物品的A层是否存在危险物品，以便获得所检测物品的A层的第一判断。 在本发明中，通过组合DR子系统的投影数据和CT子系统的投影数据，用于判断检测到的物品的数据信息大大增加，因此提高了检测精度和速度。

公开(公告)号：US20070183568A1

公开(公告)日：2007-08-09

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：US20070116177A1

公开(公告)日：2007-05-24

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。

公开(公告)号：US20060133566A1

公开(公告)日：2006-06-22

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： G01N23/04

CPC分类号： G01N23/20066 ,  G01N23/203 ,  G01N2223/637 ,  G01V5/0025

摘要： 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.

摘要翻译： 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。

公开(公告)号：US09134259B2

公开(公告)日：2015-09-15

申请号：US13641542

申请日：2010-12-27

申请人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Yuanjing Li ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Liang Li ,  Fei Ding

发明人： Zhifeng Huang ,  Zhiqiang Chen ,  Li Zhang ,  Yuanjing Li ,  Yuxiang Xing ,  Ziran Zhao ,  Yongshun Xiao ,  Liang Li ,  Fei Ding

IPC分类号： G01N23/00 ,  G01N23/04 ,  A61B6/00

CPC分类号： G01N23/046 ,  A61B6/4291 ,  A61B6/484 ,  G01N2223/419

摘要： An X-ray imaging system comprising: an X-ray source, a source grating, a fixed grating module and an X-ray detector, which are successively positioned in the propagation direction of X-ray; an object to be detected is positioned between the source grating and the fixed gating module; said source grating can perform stepping movement in a direction perpendicular to the optical path and grating stripes; wherein the system further comprises a computer workstation for controlling said X-ray source, source grating and X-ray detector so as to perform the following processes: the source grating performs stepping movement in at least one period thereof; at each stepping step, the X-ray source emits X-ray to the object to be detected, and the detector receives the X-ray at the same time; wherein after at least one period of stepping and data acquisition, the light intensity of X-ray at each pixel point on the detector is represented as a light intensity curve; the light intensity curve at each pixel point on the detector is compared with a light intensity curve in the absence of the object to be detected, a pixel value of each pixel point is calculated from change in said light intensity curve; an image of the detected object is reconstructed according to the calculated pixel value.

摘要翻译： 一种X射线成像系统，包括：X射线源，源光栅，固定光栅模块和X射线检测器，其依次位于X射线的传播方向上; 要检测的物体位于源光栅和固定门控模块之间; 所述源光栅可以在垂直于光路和光栅条纹的方向上执行步进运动; 其中所述系统还包括用于控制所述X射线源，源光栅和X射线检测器的计算机工作站，以便执行以下处理：源光栅在其至少一个周期中执行步进运动; 在每个步进步骤中，X射线源向被检测物体发射X射线，并且检测器同时接收X射线; 其中在步进和数据采集的至少一个周期之后，将检测器上每个像素点处的X射线的光强度表示为光强度曲线; 将检测器上的每个像素点处的光强度曲线与不存在待检测对象的光强度曲线进行比较，根据所述光强度曲线的变化计算每个像素点的像素值; 根据计算出的像素值重建被检测物体的图像。

公开(公告)号：US08304716B2

公开(公告)日：2012-11-06

申请号：US13170763

申请日：2011-06-28

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Zhongxia Zhang ,  Xin Xue ,  Yaoxin Wang ,  Jin Lin ,  Xiaohui Yang

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Zhongxia Zhang ,  Xin Xue ,  Yaoxin Wang ,  Jin Lin ,  Xiaohui Yang

IPC分类号： B01D59/44 ,  H01J49/00

CPC分类号： G01N27/622

摘要： The present invention discloses a sampling device for an ion migration spectrometer (IMS), comprising: an inner sleeve part, inside of which an inner cavity is defined, one end of the inner sleeve part is connected with an inlet of an migration pipe via an inner-layer channel, and the other end of the inner sleeve part is configured with an inner end cap having an inner opening; and an outer sleeve part, which is configured as an eccentric sleeve that is coaxial with the inner sleeve part and able to rotate with respect to the inner sleeve part, so as to form a sleeve cavity between the inner sleeve part and the outer sleeve part, wherein one end of the outer sleeve part is configured with at least one connecting opening that is selectively connected with the inner-layer channel, and the other end of the outer sleeve part is configured with an outer end cap, on which a first outer opening selectively connected with the inner opening and a second outer opening selectively connected with the sleeve cavity are configured, wherein the outer end cap is configured to be able to rotate between a first location and a second location with respect to the inner end cap, so as to selectively introduce a sample to be detected into the inner-layer channel via one of the inner cavity and the sleeve cavity. Moreover, the present invention further relates to a method for solid and gas sampling by using the above sampling device.

摘要翻译： 本发明公开了一种离子迁移光谱仪（IMS）的取样装置，其特征在于，包括：内套筒部，内侧限定有内腔，内套筒部的一端经由移动管的入口 内层通道，内套筒部的另一端构成为具有内开口的内端盖; 以及外套筒部，其被构造为与内套筒部分同轴且能够相对于内套筒部分旋转的偏心套筒，以在内套筒部分和外套筒部分之间形成套筒腔 其中，所述外套筒部分的一端构造有至少一个连接开口，所述至少一个连接开口与所述内层通道选择性地连接，并且所述外套筒部分的另一端构造有外端盖， 构造了与内部开口选择性地连接的开口和与套筒空腔有选择地连接的第二外部开口，其中外部端盖构造成能够相对于内部端盖在第一位置和第二位置之间旋转，因此 以便通过内腔和套管腔中的一个选择性地将要检测的样品引入内层通道。 此外，本发明还涉及使用上述采样装置进行固体和气体取样的方法。