公开(公告)号：EP3188194A2

公开(公告)日：2017-07-05

申请号：EP16191080.7

申请日：2016-09-28

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  LI, Ying ,  LI, Jianmin ,  LI, Yulan ,  ZHU, Guoping

IPC分类号： G21K1/04

摘要： A collimator and an inspection system having the collimator are disclosed. The collimator includes: a collimator body including a first part and a second part; a collimating slit formed between the first part and the second part and having a first end and a second end in a longitudinal direction thereof; and a shielding member which is movable relative to the collimator body such that both a beam divergent angle and an elevation angle of a ray beam propagating through the collimating slit are varied. An inspection system and an inspection method for scanning a vehicle are further disclosed.

摘要翻译： 公开了准直器和具有该准直器的检查系统。 该准直仪包括：准直仪主体，其包括第一部分和第二部分; 在第一部分和第二部分之间形成并在其纵向上具有第一端和第二端的准直狭缝; 以及相对于准直仪本体可移动的屏蔽构件，使得通过准直狭缝传播的光束发散角和射线束的仰角都变化。 还公开了一种用于扫描车辆的检查系统和检查方法。

公开(公告)号：EP2940457A1

公开(公告)日：2015-11-04

申请号：EP13868705.8

申请日：2013-11-21

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  TANG, Chuanxiang ,  ZHAO, Ziran ,  ZHANG, Zhe

IPC分类号： G01N23/04 ,  H05G1/46 ,  A61B6/03

CPC分类号： H05G1/10 ,  A61B6/032 ,  A61B6/40 ,  A61B6/4064 ,  G01N23/046 ,  G01N2223/308 ,  G01N2223/419 ,  H01J35/06 ,  H01J35/08 ,  H01J2235/086

摘要： CT devices and methods thereof are disclosed. The CT device comprises a circular electron beam emission array including a plurality of electron beam emission units that are distributed uniformly along a circle, wherein each electron beam emission unit emits electron beams that are substantially parallel to an axis of the circular electron beam emission array in sequence under the control of a control signal; a circular reflection target which is disposed to be coaxial with the circular electron beam emission array, wherein the electron beams bombard the circular reflection target to generate X-rays that intersect the axis of the circular electron beam emission array; and a circular detector array which is disposed to be coaxial with the circular reflection target and configured to include a plurality of detection units which receive the X-rays after they have passed through an object to be detected.

摘要翻译： 公开了CT装置及其方法。 该CT装置包括：圆形电子束发射阵列，其包括沿着圆均匀分布的多个电子束发射单元，其中每个电子束发射单元发射基本上平行于圆形电子束发射阵列的轴的电子束; 序列在控制信号的控制下; 圆形反射靶，与圆形电子束发射阵列同轴设置，其中电子束轰击圆形反射靶，以产生与圆形电子束发射阵列的轴相交的X射线; 以及圆形的检测器阵列，该圆形的检测器阵列配置成与所述圆形的反射对象物同轴，并构成为具有多个检测单元，所述多个检测单元在通过被检测体后接收所述X射线。

公开(公告)号：EP2256477B1

公开(公告)日：2012-08-01

申请号：EP09717946.9

申请日：2009-02-16

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  CHEN, Zhiqiang ,  ZHANG, Li ,  WANG, Yingxin ,  ZHAO, Ziran ,  LI, Yuanjing ,  LIU, Yinong ,  HUANG, Zhifeng ,  XING, Yuxiang

IPC分类号： G01N21/35

CPC分类号： G01N21/3581

摘要： A phase contrast imaging method comprises: using a Terahertz radiation to radiate an object in order to interact with the object; making the Terahertz radiation after interacting with the object radiating a diffraction grating; shifting the diffraction grating along the diffraction grating wave vector direction in order to measure the light intensity distribution of the Terahertz radiation after interacting with the object and the grating in the diffraction field for the different grating positions; and recovering a phase contrast image of the object based on the light intensity distribution. Besides, a phase contrast imaging apparatus comprises: a Terahertz radiation emitter(1), which produces the Terahertz radiation to radiate an object in order to interact with the object; a diffraction grating(3), which is radiated by the Terahertz radiation after interacting with the object; a Terahertz radiation detector(4), which measures the light intensity distribution of the Terahertz radiation after interacting with the object and the grating in the diffraction field for the different grating positions; a data collecting and processing system(6), which recovers a phase contrast image of the object based on the light intensity distribution.

公开(公告)号：EP2009428A3

公开(公告)日：2010-01-27

申请号：EP08153187.3

申请日：2008-03-22

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  CHEN, Zhiqiang ,  HU, Haifeng ,  LI, Yuanjing ,  ZHANG, Li ,  LIU, Yinong ,  WANG, Xuewu ,  QIU, Lijun ,  ZHANG, Hong

IPC分类号： G01N23/10 ,  G01V5/00

CPC分类号： G01N23/046 ,  G01N2223/419

摘要： Disclosed are a method and a device for inspection of drugs concealed in liquid articles without opening the outer packages. The method comprises the steps of: emitting radiation beams to transmit through the liquid article; receiving the radiation beams transmitted through the liquid article to get multi-angle projection data; inversely operating the multi-angle projection data based on the uniformity of the liquid article to obtain an attribute value of the inspected liquid article; retrieving a reference attribute value in a pre-created database by using the identification information of the liquid article as an index, and calculating a difference between the calculated attribute value and the reference attribute value; and determining whether the difference is larger than a predefined threshold value; wherein it is concluded that there are drugs concealed in the liquid article when the difference is determined to be larger than the predefined threshold value.

公开(公告)号：EP4369869A1

公开(公告)日：2024-05-15

申请号：EP22836881.7

申请日：2022-07-05

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  LIU, Yaohong ,  CHEN, Huaibi ,  ZHANG, Liang ,  TANG, Chuanxiang ,  LI, Yuanjing

IPC分类号： H05G1/08 ,  H05G1/46 ,  G01V5/00

摘要： The present disclosure relates to a ray generating device and a control method thereof. The ray generating device includes: an electronic beam generating device (2), configured to generate a plurality of electronic beams; a microwave generating device (4), configured to generate a microwave; a microwave circulator (5), having a power input port and at least two power output ports, the power input port being connected to the microwave generating device (4);a plurality of accelerating tubes (3), connected to the electronic beam generating device (2) and respectively connected to the at least two power output ports, configured to respectively receive a plurality of electronic beams, and accelerate the plurality of electronic beams respectively through microwaves received from the at least two power output ports, so as to respectively generate a plurality of rays having at least two different energies; and a controller (1), configured to perform chronological control on microwave power of the microwave generating device (4), and chronological control on beam loadings of the electronic beams generated by the electronic beam generating device (2) and respectively corresponding to the plurality of accelerating tubes (3).

公开(公告)号：EP3768049A1

公开(公告)日：2021-01-20

申请号：EP20186259.6

申请日：2020-07-16

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  CHEN, Huaibi ,  LIU, Yaohong ,  TANG, Chuanxiang ,  LI, Yuanjing ,  ZHA, Hao ,  ZHANG, Liang

IPC分类号： H05H7/18 ,  H05H9/04 ,  G01V5/00 ,  G01V5/08

摘要： Embodiments of the disclosure provide a multi-ray-source accelerator and an inspection method. The multi-ray-source accelerator includes: a plurality of acceleration tubes, each acceleration tube of the plurality of acceleration tubes including an acceleration tube body (12) that defines at least one cavity (11), the plurality of acceleration tubes being arranged in at least one row along a straight line or an arc and connected in series with each other; and a microwave unit (6) configured to provide a microwave field to the plurality of acceleration tubes. The plurality of acceleration tubes are arranged to allow the microwave unit to provide the microwave field from an acceleration tube at one end of the plurality of acceleration tubes so as to accelerate electron beams in cavities of all the acceleration tubes.

公开(公告)号：EP2884269B1

公开(公告)日：2018-09-12

申请号：EP14786438.3

申请日：2014-07-31

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  LI, Jianmin ,  GU, Jingyu ,  LI, Yuanjing ,  LI, Yulan ,  LIU, Yaohong ,  TAN, Zhen ,  WU, Yucheng ,  WANG, Weizhen

IPC分类号： G01N23/04 ,  G01V5/00

CPC分类号： G01V5/0066 ,  B64F5/60 ,  G01N23/04 ,  G01N23/10 ,  G01N2223/631 ,  G01V5/0016 ,  H01J37/023 ,  H01L27/14618

摘要： The present disclosure provides a system and method for inspecting an aircraft. A ray source and a detector locate at above and below of a fuselage of an aircraft, respectively. The ray source emits a beam of rays, which pass through the aircraft to be detected. The detector receives and converts the beam of rays that pass through the aircraft to an output signal, and generates a vertical transmission image in real time.

公开(公告)号：EP3236294A3

公开(公告)日：2018-01-24

申请号：EP17163487.6

申请日：2017-03-29

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： LI, Jianmin ,  LI, Yulan ,  ZHANG, Li ,  LI, Liang ,  ZONG, Chunguang ,  YU, Hao ,  KANG, Kejun ,  LI, Yuangjing ,  CHEN, Zhiyiang ,  MIATO, Qitian ,  CHENG, Jianping

IPC分类号： G01V5/00

CPC分类号： G01V5/005

摘要： The present invention discloses a container CT inspection system (100), including a scanning device (110), wherein the scanning device (110) includes a radioactive source device (111) and a detector array (112), the scanning device (110) further includes a first rail (113) and a second rail (114), which are respectively arranged on inner layer and outer layer, the radioactive source device (111) is arranged on the first rail (113), and the detector array (112) is arranged on the second rail (114). According to the present invention, the radioactive source device (111) and the detector array (112) are respectively supported by different rails (113, 114), which improves the situation that a ring-shaped rotating frame in the prior art needs to bear a very large load, and for each rail in the first rail (113) and the second rail (114), the strength requirements are greatly reduced relative to the ring-shaped rotating frame, therefore the processing difficulty is effectively reduced compared with the container CT inspection system in the prior art.

摘要翻译： 本发明公开了一种容器CT检查系统，包括扫描装置，所述扫描装置包括放射源装置和检测器阵列，所述扫描装置， 还包括分别设置在内层和外层上的第一导轨113和第二导轨114，所述放射源装置111设置在所述第一导轨113上，所述探测器阵列112 ）布置在第二轨道（114）上。 根据本发明，放射源装置（111）和检测器阵列（112）分别由不同的轨道（113,114）支撑，改善了现有技术中的环形旋转架需要承受的情况 非常大的载荷，并且对于第一轨道113和第二轨道114中的每个轨道，相对于环形旋转框架，强度要求大大降低，因此与容器相比加工难度有效地降低 现有技术中的CT检查系统。

公开(公告)号：EP3196674A1

公开(公告)日：2017-07-26

申请号：EP17152523.1

申请日：2017-01-20

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： KANG, Kejun ,  CHEN, Zhiqiang ,  LI, Yuanjing ,  ZHAO, Ziran ,  LI, Junli ,  WANG, Xuewu ,  LIU, Yaohong ,  ZENG, Zhi ,  GU, Jianping ,  LIANG, Song ,  LIU, Bicheng ,  XU, Guangming ,  WANG, Yongqiang

IPC分类号： G01T1/167 ,  G01V5/00

CPC分类号： G01V5/0075 ,  G01N2223/205 ,  G01T1/167 ,  G01T5/02 ,  G01V5/0091 ,  G06K9/6267

摘要： The present application relates to a method, apparatus and system for inspecting an object based on a cosmic ray, pertaining to the technical field of radiometric imaging and safety inspection. The method includes: recording (S110) a movement trajectory of an inspected object by using a monitoring device; acquiring (S120) information of charged particles in the cosmic ray by using a position-sensitive detector, the information of charged particles comprising trajectory information of the charged particles; performing (S130) position coincidence for the movement trajectory and the trajectory information to determine the object; performing (140) trajectory remodeling for the charged particles according to the information of charged particles; and identifying (S150) a material inside the moving object according to the trajectory remodeling. According to the present disclosure, pedestrians who are walking and moving are inspected by using the cosmic ray, and nuclear materials, drugs and explosive materials and the like carried by human bodies may be detected.

摘要翻译： 本发明涉及一种基于宇宙射线检测物体的方法，装置和系统，属于辐射成像和安全检测技术领域。 该方法包括：利用监测装置记录（S110）检查对象的移动轨迹; 通过使用位置敏感检测器获取（S120）宇宙射线中的带电粒子的信息，带电粒子的信息包括带电粒子的轨迹信息; 对所述移动轨迹和所述轨迹信息执行（S130）位置重合以确定所述对象; 根据带电粒子的信息对带电粒子执行（140）轨迹重塑; 以及根据轨迹重塑识别（S150）移动物体内部的材料。 根据本公开，通过使用宇宙射线检查行走和移动的行人，并且可以检测人体携带的核材料，药物和爆炸材料等。

公开(公告)号：EP3040678A1

公开(公告)日：2016-07-06

申请号：EP15201922.0

申请日：2015-12-22

申请人： Nuctech Company Limited

发明人： LI, Mingliang ,  LI, Yuanjing ,  LI, Jianmin ,  LI, Ying ,  CHEN, Zhiqiang ,  KANG, Kejun

IPC分类号： G01C11/06 ,  G01P3/68 ,  G01B11/04 ,  G06T7/00

CPC分类号： G06T7/2093 ,  G01B11/04 ,  G01C11/06 ,  G01P3/68 ,  G06T7/292 ,  G06T7/60 ,  G06T2207/10016 ,  G06T2207/30236 ,  G06T2207/30248 ,  H04N5/247

摘要： The present invention relates to a photogrammetry system and method. The photogrammetry system comprises: photographing devices capable of photographing an object at a predetermined time interval; and, a data processing device capable of calculating an actual length of the object or a certain portion on the object according to a length of the object or a certain portion on the object in the images obtained by the photographing devices and a distance of the object in the two images, wherein the object moves at a speed V; the photographing devices photograph the object for two times at a time interval t; the distance of the object in the two images obtained by the two times of photographing is Dp; the length of the object or a certain portion on the object in the images is Lp; and, the actual length L of the object or a certain portion on the object may be obtained by the following formula: L = Lp × Vt Dp .

摘要翻译： 本发明涉及摄影测量系统和方法。 摄影测量系统包括：拍摄能够以预定时间间隔拍摄对象的装置; 以及数据处理装置，其能够根据被摄体的物体的长度或物体上的某一部分计算物体的实际长度或由摄影装置获得的图像中的某一部分和物体的距离 在两个图像中，其中物体以速度V移动; 拍摄装置以时间间隔t拍摄对象两次; 通过两次拍摄获得的两张图像中的物体的距离为Dp; 图像中对象或对象上某一部分的长度为Lp; 并且物体的实际长度L或物体上的某个部分可以通过以下公式获得：L = Lp×Vt Dp。