公开(公告)号：US20160178795A1

公开(公告)日：2016-06-23

申请号：US14975387

申请日：2015-12-18

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： Yanli DENG ,  Qitian MIAO ,  Junli LI ,  Guoping ZHU ,  Weiqiang GUAN ,  Yuxin HU ,  Shenjin MING ,  Ming HUANG

IPC分类号： G01V13/00

CPC分类号： G01V13/00 ,  G01N23/083 ,  G01N2223/303

摘要： The disclosure provides a method for measuring X-ray energy of an accelerator in an inspection system. the method comprises: building a database comprising correspondence between half-value layer (HVL) and energy under a predetermined condition; measuring HVL for X-rays of the accelerator in the inspection system on line under the same predetermined condition; and comparing the measured HVL with the HVLs in the database comprising correspondence between HVL and energy to determine the X-ray energy of the accelerator. The method is applicable to a large-scale container/vehicle inspection system for measurement of X-ray energy/HVL of the accelerator so as to acquire source state of the inspection system in real time.

摘要翻译： 本公开提供了一种用于测量检查系统中的加速器的X射线能量的方法。 该方法包括：构建包含半值层（HVL）与预定条件下的能量之间的对应关系的数据库; 在相同的预定条件下测量在检查系统中的加速器的X射线的HVL; 并且将所测量的HVL与数据库中的HVL进行比较，其中包括HVL和能量之间的对应关系，以确定加速器的X射线能量。 该方法适用于用于测量加速器的X射线能量/ HVL的大型集装箱/车辆检查系统，以便实时获取检查系统的源状态。

公开(公告)号：US20240027371A1

公开(公告)日：2024-01-25

申请号：US18266507

申请日：2021-11-25

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： Zhi ZENG ,  Jianmin LI ,  Ming RUAN ,  Yanli DENG ,  Guoping ZHU ,  Junli LI

IPC分类号： G01N23/10 ,  G01N23/20025

CPC分类号： G01N23/10 ,  G01N23/20025 ,  G01N2223/643 ,  G01N2223/3307

摘要： Embodiments of the present application provide a detection method. The detection method includes: acquiring information of at least two first positions through which a particle passes before penetrating an object under detection, and information of at least two second positions through which the particle passes after penetrating the object under detection, wherein the object under detection is a metal product; reconstructing, based on the information of the at least two first positions, a first track before the particle penetrates the object under detection; reconstructing, based on the information of the at least two second positions, a second track after the particle penetrates the object under detection; processing the first track and the second track to obtain feature information of the object under detection; and determining, according to the feature information and preset feature information of an object of a target type, a detection result of the object under detection.

公开(公告)号：US20170329039A1

公开(公告)日：2017-11-16

申请号：US15411359

申请日：2017-01-20

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

发明人： Kejun KANG ,  Jianping CHENG ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Junli LI ,  Xuewu WANG ,  Zhi ZENG ,  Qingjun ZHANG ,  Jianping GU ,  Xi YI ,  Bicheng LIU ,  Guangming XU ,  Yongqiang WANG

IPC分类号： G01V5/00

CPC分类号： G01V5/0075 ,  G01V5/0016 ,  G01V5/0091

摘要： The present disclosure relates to a method, a device and a system for inspecting a moving object based on cosmic rays, pertaining to the field of radiation imaging and safety inspection techniques. The method includes: detecting whether a speed of the inspected moving object is within a preset range; recording a motion trajectory of the moving object with a monitoring device; acquiring information about charged particles in the cosmic rays with a position sensitive detector, the information about charged particles including track information of the charged particles; determining the moving object by matching positions of the motion trajectory and the track information; reconstructing the track of the charged particles according to the information about the charged particles; and recognizing the material inside the moving object based on the track reconstruction.

公开(公告)号：US20160170074A1

公开(公告)日：2016-06-16

申请号：US14965978

申请日：2015-12-11

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： Jianmin LI ,  Yulan LI ,  Yuanjing LI ,  Hao YU ,  Chunguang ZONG ,  Jingyu GU ,  Weifeng YU ,  Quanwei SONG ,  Weizhen WANG ,  Shangmin SUN ,  Yinong LIU ,  Junli LI ,  Chuanxiang TANG

IPC分类号： G01V5/00 ,  G21K1/02

CPC分类号： G01V5/0016 ,  G01V5/0008 ,  G21K1/02

摘要： The present disclosure discloses an alignment system and an alignment method for a container or vehicle inspection system, and an inspection system. The inspection system comprises comprising an ray source, a collimator, a detector arm and a detector module mounted on a detector arm, the ray source, the collimator and the detector module are arranged to form an inspection passage, a ray beam emitted from the ray source passes through collimator and irradiates onto an inspected object, and an attenuated ray beam is collected by the detector module so as to complete inspection. The alignment system comprises a measuring module arranged to receive the ray beam emitted from the collimator and to measure the ray beam so as to determine positions and orientations of the ray source and the collimator. With the alignment method, alignment between a center point of the ray source, a central line of a detector tip and a central line of the collimator may be more accurately measured.

摘要翻译： 本公开公开了一种用于集装箱或车辆检查系统的对准系统和对准方法以及检查系统。 检查系统包括一个安装在检测器臂上的射线源，准直仪，检测器臂和检测器模块，射线源，准直器和检测器模块被布置成形成检查通道，从射线射出的射线束 源通过准直仪并照射到检查对象上，并且由检测器模块收集衰减的射线束，以便完成检查。 对准系统包括测量模块，其布置成接收从准直仪发射的射线束并测量射线束，以便确定射线源和准直器的位置和取向。 利用对准方法，可以更准确地测量射线源的中心点，检测器尖端的中心线与准直仪的中心线之间的对准。

公开(公告)号：US20210025836A1

公开(公告)日：2021-01-28

申请号：US16935415

申请日：2020-07-22

申请人： Tsinghua University ,  NUCTECH COMPANY LIMITED

发明人： Zhi ZENG ,  Xingyu PAN ,  Xuewu WANG ,  Junli LI ,  Ming ZENG ,  Jianmin LI ,  Ziran ZHAO ,  Jianping CHENG ,  Hao MA ,  Hui ZHANG ,  Hao YU ,  Bicheng LIU

IPC分类号： G01N23/201 ,  G01N23/02 ,  G06K9/62

摘要： The present disclosure provides a substance identification device and a substance identification method. The substance identification device comprises: a classifier establishing unit configured to establish a classifier based on scattering density values reconstructed for a plurality of known sample materials, wherein the classifier comprises a plurality of feature regions corresponding to a plurality of characteristic parameters for the plurality of known sample materials, respectively; and an identification unit for a material to be tested, configured to match the characteristic parameter of the material to be tested with the classifier, and to identify a type of the material to be tested by obtaining a feature region corresponding to the characteristic parameter of the material to be tested.

公开(公告)号：US20170329038A1

公开(公告)日：2017-11-16

申请号：US15411348

申请日：2017-01-20

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

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

IPC分类号： G01V5/00

CPC分类号： G01V5/0016 ,  G01N2223/205 ,  G01T1/167 ,  G01T5/002 ,  G01T5/02 ,  G01V5/0025 ,  G01V5/0075 ,  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 a movement trajectory of an inspected object by using a monitoring device; acquiring 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 position coincidence for the movement trajectory and the trajectory information to determine the object; performing trajectory remodeling for the charged particles according to the information of charged particles; and identifying 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.

公开(公告)号：US20150048263A1

公开(公告)日：2015-02-19

申请号：US14459408

申请日：2014-08-14

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： Kejun KANG ,  Yuanjing LI ,  Ying LI ,  Jianmin LI ,  Junli LI ,  Yanli DENG

IPC分类号： G21F3/00 ,  G21F1/04 ,  G21F1/02

CPC分类号： G21F3/00 ,  G01V5/0016 ,  G21F1/023 ,  G21F1/042

摘要： A radiation protection device is disclosed in the embodiment of the present invention. The radiation protection device is used for a system which is configured to perform safety inspection of a cargo or a vehicle by a ray. The radiation protection device comprising: at least one container, and a radiation protection part disposed within the container. The radiation protection material may comprise at least one of concrete, sandstone, and water, or the radiation protection part may comprise a steel-lead protection wall or a concrete protection wall. With the radiation protection device according to the embodiment of the present invention, after the container is transported to the site, it can be directly put in place to be capable of shielding rays without needing operation or with only simple operation. The amount of on-site work, construction time, and construction cost are low.

摘要翻译： 在本发明的实施例中公开了一种辐射防护装置。 辐射防护装置用于被配置为通过射线执行货物或车辆的安全检查的系统。 辐射防护装置包括：至少一个容器和设置在容器内的辐射防护部分。 辐射防护材料可以包括混凝土，砂岩和水中的至少一种，或者辐射防护部分可以包括钢 - 铅保护壁或混凝土保护壁。 根据本发明的实施方式的放射线防护装置，在将容器运送到现场后，可以将其直接放置在能够屏蔽射线的地方，而无需操作或操作简单。 现场工作量，施工时间和施工成本低。

公开(公告)号：US20230213666A1

公开(公告)日：2023-07-06

申请号：US18146101

申请日：2022-12-23

申请人： NUCTECH COMPANY LIMITED

发明人： Jianmin LI ,  Guoping ZHU ,  Ming RUAN ,  Kun ZHAO ,  Yanli DENG ,  Junli LI ,  Qitian MIAO

IPC分类号： G01T1/20

CPC分类号： G01T1/2002 ,  G01T1/2006

摘要： Provided is a device of detecting a ray dose adaptable for coupling with a terminal, including: a housing, a scintillator and a light shielding layer. The housing has an accommodating space and a window, the accommodating space is in communication with the window; the scintillator is configured to receive a ray and convert a received ray into a visible light, the scintillator is located in the accommodating space, the scintillator covers the window, an outer surface of the scintillator includes a first outer surface and a second outer surface, and the first outer surface is adapted to a camera of the terminal; and the light shielding layer is configured to shield a visible light in an external environment from illuminating on the scintillator, the light shielding layer is arranged on the second outer surface of the scintillator.

公开(公告)号：US20160170073A1

公开(公告)日：2016-06-16

申请号：US14965122

申请日：2015-12-10

申请人： Nuctech Company Limited

发明人： Jianmin LI ,  Yulan LI ,  Jingyu GU ,  Yuanjing LI ,  Quanwei SONG ,  Weizhen WANG ,  Dongyu WANG ,  Zhiqiang CHEN ,  Chaunxiang TANG ,  Yinong LIU ,  Junli LI ,  Tao XUE ,  Hui Gong ,  Xuewu WANG

IPC分类号： G01V5/00 ,  B60R11/00

CPC分类号： G01V5/0016 ,  B60R11/00 ,  B60R2011/004

摘要： A vehicle mounted mobile container or vehicle inspection system, including: a radiation source, a movable vehicle for carrying the inspection system, and a detector arm rack which has a horizontal arm and a vertical arm, a first end of the horizontal arm is connected to the vehicle and a second end thereof is connected to an end of the vertical arm. The horizontal arm and the vertical arm are connected by a pivotal connecting device such that the vertical arm may pivot in a vertical plane, and the horizontal arm and the vertical arm may be retracted in a same horizontal plane. The novel arm rack construction may reduce the space occupied by it on top of the scanning vehicle after the arm rack is stowed so as to reduce the eight of the scanning vehicle under running condition.

摘要翻译： 一种车载移动容器或车辆检查系统，包括：辐射源，用于携带检查系统的移动车辆和具有水平臂和垂直臂的检测器臂架，水平臂的第一端连接到 车辆及其第二端连接到垂直臂的一端。 水平臂和垂直臂通过枢转连接装置连接，使得垂直臂可以在垂直平面中枢转，并且水平臂和垂直臂可以在相同的水平面中缩回。 新型臂架结构可以在搁架臂架之后减小扫描车辆顶部占据的空间，以便在运行状态下减少扫描车辆的八个。