公开(公告)号：US09846257B2

公开(公告)日：2017-12-19

申请号：US14790947

申请日：2015-07-02

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Le Tang ,  Ming Ruan ,  Xiao Tang ,  Guangwei Ding

IPC: G01N23/201 ,  G01V5/00 ,  G01N23/203

CPC classification number: G01V5/0025 ,  G01N23/203

Abstract: The present disclosure provides a mobile back scattering imaging security inspection apparatus, comprising: a back scattering scanner (2), a detector (3), a controller (4), and a movable stage (1) configured to carry the back scattering scanner, the detector and the controller and being movable with respect to the object to be inspected; wherein the back scattering scanner is a distributed X-ray source comprising a plurality of target points (201), each of which is able to emit the ray beam individually, and wherein the back scattering scanner, the detector and the controller perform an imaging security inspection operation on the object to be inspected during moving along with the movable stage with respect to the object.

公开(公告)号：US09779908B2

公开(公告)日：2017-10-03

申请号：US14729622

申请日：2015-06-03

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Fuhua Ding ,  Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Le Tang ,  Yingkang Jin ,  Yanjie Wen

IPC: H01J35/10 ,  H01J35/12 ,  G21K1/04 ,  H05G1/12

CPC classification number: H01J35/12 ,  G21K1/043 ,  G21K1/046 ,  H01J2235/1287 ,  H05G1/12

Abstract: The present disclosure provides an X-ray generator with adjustable collimation. The X-ray generator comprises: an assembly of X-ray source, which includes an X-ray tube having a cathode and an anode and a front collimator; a high voltage generator, which is disposed in an extended chamber of a housing for the X-ray tube and which is used for supplying a direct current high voltage between the cathode and the anode of the X-ray tube to excite X-ray beams; a collimation adjustment unit, which is rotatably disposed outside of the front collimator and which is used for adjusting fan-type X-ray beams into continuous pencil-type X-ray beams; and a cooling unit, which is independently mounted to the X-ray tube and which is used for cooling the anode of the X-ray tube; wherein, the assembly of X-ray source, the high voltage generator, the collimation adjustment unit and the cooling unit are integrated as a whole. The X-ray generator with adjustable collimation according to the disclosure has a compact construction, which is helpful in miniaturization, modularization and high efficiency of a security detection equipment.

公开(公告)号：US09355810B2

公开(公告)日：2016-05-31

申请号：US13972478

申请日：2013-08-21

Applicant: Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Xilei Luo ,  Guangwei Ding ,  Yingkang Jin ,  Le Tang ,  Fuhua Ding ,  Bin Sang ,  Shuo Cao ,  Zhimin Zheng

IPC: H01J35/14 ,  G21K1/04 ,  H01J35/02 ,  H05G1/02

CPC classification number: H01J35/14 ,  G21K1/043 ,  H01J35/025 ,  H05G1/025

Abstract: Disclosed is an integrated flying-spot X-ray apparatus comprising a ray generator configured to generate the X-ray, a revolving collimator device provided thereon with at least one aperture and arranged to be rotatable about the ray generator, a frameless torque motor configured to drive the revolving collimator device to rotate about the ray generator, and a cooling device configured to cool the ray generator, wherein the ray generator, the revolving collimator device, the frameless torque motor and the cooling device are mounted on an integrated mounting frame. Compared with the prior art, the integrated flying-spot X-ray apparatus according to the present disclosure has a simple and compact structure and is used as a kernel apparatus for fields of safety inspection and medical treatment.

Abstract translation: 公开了一种集成的飞点X射线装置，其包括被配置为产生X射线的射线发生器，设置有至少一个孔的旋转准直器装置，并且被布置成围绕射线发生器可旋转;无框架扭矩马达，被配置为 驱动所述旋转准直仪装置围绕所述射线发生器旋转;以及冷却装置，其被配置为冷却所述射线发生器，其中所述射线发生器，所述旋转准直器装置，所述无框架扭矩马达和所述冷却装置安装在集成安装框架上。 与现有技术相比，根据本公开的集成飞点X射线装置具有简单紧凑的结构，并且用作安全检查和医疗领域的内核装置。

公开(公告)号：US20140056410A1

公开(公告)日：2014-02-27

申请号：US13971275

申请日：2013-08-20

Applicant: Nuctech Company Limited

Inventor： Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Le Tang ,  Chenguang Zhu ,  Guangwei Ding ,  Shuo Cao

IPC: G01V5/00

CPC classification number: G01V5/0025 ,  G01V5/0075

Abstract: The present invention discloses a back-scatter human body security inspection system, capable of detecting a radioactive matter carried by the human body, comprising: a radiation source configured to generate radiation rays, a flying spot forming device, configured to modulate the radiation rays from the radiation source, so as to form flying spot scanning beams for scanning the human body to be detected, a detector configured to detect radiation rays from the human body to be detected and output a signal characterizing a dose of the radiation rays, a control and data processing device, configured to process the signal outputted from the detector to obtain a radiation image of the human body to be detected. The detector detects the radiation rays from the radiation source scattered by the human body to be detected, separately at different times, and the radiation rays from the radioactive matter carried by the human body to be detected. In the present invention, the application ranges of the back-scatter human body scanning apparatus can be effectively expanded, without adding and modifying the hardware therein, thereby increasing the monitoring function to the radioactive matter carried by the human body and further improving the effects of the human body security inspection.

Abstract translation: 本发明公开了一种能够检测人体携带的放射性物质的背散射人体安全检查系统，包括：被配置为产生放射线的辐射源，飞点形成装置，其被配置为调制来自 辐射源，以便形成用于扫描要检测的人体的飞点扫描光束;检测器，被配置为检测来自人体的待检测的辐射线，并输出表征辐射射线剂量的信号;控制和 数据处理装置，被配置为处理从检测器输出的信号，以获得要检测的人体的放射线图像。 检测器在不同时间分别检测来自被检测人体的辐射源的辐射线，以及来自被检测人体携带的放射性物质的辐射线。 在本发明中，可以有效地扩展背散射式人体扫描装置的应用范围，而不需要对其中的硬件进行增加和修改，从而增加对人体携带的放射性物质的监测功能，进一步提高 人体安全检查。

公开(公告)号：US09295441B2

公开(公告)日：2016-03-29

申请号：US14138476

申请日：2013-12-23

Applicant: Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Yuanjing Li ,  Wanlong Wu ,  Yingkang Jin ,  Li Zhang ,  Le Tang ,  Chenguang Zhu ,  Xianli Ding ,  Xiuwei Chen ,  Ming Ruan ,  Chengcong Xu ,  Xilei Luo

IPC: A61B6/00 ,  G01T1/167 ,  G01V5/00

CPC classification number: A61B6/483 ,  G01T1/167 ,  G01V5/0025

Abstract: Human body back-scattering inspection systems and methods are disclosed. In the invention, X-rays modulated by the flying-spot forming unit having spirally distributed flying-spots have a distribution having alternating peaks and valleys on the irradiated surface. In this way, scanning starting times can be precisely controlled to cause two devices to have scanning starting times that are different by a half of a cycle. That is, the beams outputted from one device are at maximum when the beams outputted from the other device are at minimum. In other words, even if the ray source of one device emits rays, it will not significantly affect imaging result of the other device. In such way, the two devices may emit rays and perform scanning at the same time, and thus the total scanning time is reduced.

Abstract translation: 公开了人体背散射检查系统和方法。 在本发明中，由具有螺旋状分布的飞点的飞点形成单元调制的X射线具有在照射面上具有交替的峰和谷的分布。 以这种方式，可以精确地控制扫描开始时间，以使两个装置的扫描开始时间不同于周期的一半。 也就是说，当从另一个装置输出的光束为最小时，从一个装置输出的光束是最大的。 换句话说，即使一个设备的射线源发射光线，也不会显着影响其他设备的成像结果。 以这种方式，两个装置可以发射光线并同时进行扫描，因此总扫描时间减少。

公开(公告)号：US20160003966A1

公开(公告)日：2016-01-07

申请号：US14790947

申请日：2015-07-02

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Le Tang ,  Ming Ruan ,  Xiao Tang ,  Guangwei Ding

IPC: G01V5/00 ,  G01N23/203

CPC classification number: G01V5/0025 ,  G01N23/203

Abstract: The present disclosure provides a mobile back scattering imaging security inspection apparatus, comprising: a back scattering scanner (2), a detector (3), a controller (4), and a movable stage (1) configured to carry the back scattering scanner, the detector and the controller and being movable with respect to the object to be inspected; wherein the back scattering scanner is a distributed X-ray source comprising a plurality of target points (201), each of which is able to emit the ray beam individually, and wherein the back scattering scanner, the detector and the controller perform an imaging security inspection operation on the object to be inspected during moving along with the movable stage with respect to the object.

Abstract translation: 本公开提供了一种移动后向散射成像安全检查装置，包括：后散射扫描器（2），检测器（3），控制器（4）和可移动台（1），其配置成携带背散射扫描器， 检测器和控制器，并且可相对于被检查物体移动; 其中所述背散射扫描器是包括多个目标点（201）的分布式X射线源，每个所述目标点（201）能够单独地发射所述射线束，并且其中所述后向散射扫描器，所述检测器和所述控制器执行成像安全性 在与可动台相对于物体一起移动时，要检查对象的检查操作。

公开(公告)号：US20140177802A1

公开(公告)日：2014-06-26

申请号：US14060270

申请日：2013-10-22

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Le Tang ,  Guangwei Ding ,  Chenguang Zhu

IPC: G21K1/04 ,  G01N23/20

CPC classification number: G21K1/04 ,  G01N23/20 ,  G21K1/043

Abstract: A ray emission device and an imaging system with the ray emission device are disclosed. The ray emission device comprises: a cylinder; a ray source disposed in the cylinder for emitting a ray; and a collimator disposed in the cylinder. The collimator enables the ray emitted by the ray source to form sectorial ray beams at a plurality of positions in an axial direction of the cylinder. The cylinder has a pencil beam forming part arranged over an axial length of the cylinder corresponding to the plurality of positions. The sectorial ray beams form pencil beams through the pencil beam forming part when the cylinder rotates around a rotation axis.

Abstract translation: 公开了一种具有射线发射装置的射线发射装置和成像系统。 射线发射装置包括：圆筒; 设置在所述气缸中用于发射射线的射线源; 以及设置在气缸中的准直器。 准直器使得由射线源发射的射线能够在圆柱体的轴向上的多个位置处形成扇形射线束。 圆柱体具有布置在与多个位置对应的圆柱体的轴向长度上的笔形波束形成部分。 当圆筒围绕旋转轴旋转时，扇形射线束通过笔形波束形成部分形成笔形束。

公开(公告)号：US20170184516A1

公开(公告)日：2017-06-29

申请号：US15285850

申请日：2016-10-05

Applicant: Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Le Tang ,  Xiao Tang ,  Guangwei Ding

IPC: G01N23/203

CPC classification number: G01N23/203 ,  G01N2223/053 ,  G01N2223/408 ,  G01T7/00 ,  G01V5/0025

Abstract: The present disclosure relates to a portable backscatter imaging inspection apparatus and an imaging method thereof, the apparatus comprising: an apparatus housing, an X-ray source, a rotating modulation mechanism, a radiation detector, a motion sensor and a controller; the X-ray source, the rotating modulation mechanism, the radiation detector and the motion sensor are disposed within the apparatus housing, wherein the radiation detector is used to receive scatter signal data from a surface of an object under inspection to form a two dimensional (2D) image, the motion sensor is used to collect a three dimensional (3D) motion track and scanning angles of the apparatus during a scanning process, the controller is used to splice and fuse a plurality of 2D images received by the radiation detector based on the 3D motion track and the scanning angles to obtain a stereo image of the surface of the object under inspection. This disclosure may achieve a better scan imaging effect on an object having a curved surface or multiple irregular surfaces.

公开(公告)号：US09552521B2

公开(公告)日：2017-01-24

申请号：US14337190

申请日：2014-07-21

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Yinong Liu ,  Wenguo Liu ,  Xianli Ding ,  Bin Sang ,  Le Tang ,  Ming Ruan ,  Chenguang Zhu ,  Liaohua Fu ,  Fuhua Ding ,  Shuo Cao

IPC: G06K9/00 ,  G06T7/00 ,  G07C9/00

CPC classification number: G06K9/00771 ,  G06K9/00362 ,  G06K2209/09 ,  G06T7/0002 ,  G06T2207/30196 ,  G06T2207/30232 ,  G07C9/00158

Abstract: The present invention provides a human body security inspection method and system. The method comprises: retrieving in real-time scanning row or column image data of a personal to be inspected; transmitting in real-time the image data to an algorithm processing module and processing these image data by the module; automatically recognizing a suspicious matter by a suspicious matter automatic target recognition technique, after retrieving an image data of an entire scanning image of the personal; any of the following three inspection modes is selected, so as to perform a further processing on basis of the recognition result of the suspicious matter, (1) in a manner of automatic target recognition technique, (2) in a combination manner of the automatic target recognition technique and a privacy protection image; and (3) a combination manner of the automatic target recognition technique, a privacy protection image and human intervention.

Abstract translation: 本发明提供一种人体安全检查方法和系统。 该方法包括：实时检索要检查的个人的行或列图像数据; 将图像数据实时传输到算法处理模块，并通过模块处理这些图像数据; 在检索个人的整个扫描图像的图像数据之后，通过可疑物体自动目标识别技术自动识别可疑物品; 选择以下三种检查模式中的任何一种，以便基于可疑物的识别结果进行进一步处理，（1）以自动目标识别技术的方式，（2）以自动 目标识别技术和隐私保护形象; 和（3）自动目标识别技术，隐私保护图像和人为干预的组合方式。

公开(公告)号：US09322933B2

公开(公告)日：2016-04-26

申请号：US14576674

申请日：2014-12-19

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Ziran Zhao ,  Zhiqiang Chen ,  Yuanjing Li ,  Wanlong Wu ,  Yinong Liu ,  Ming Ruan ,  Yingkang Jin ,  Le Tang

IPC: G01T1/20

CPC classification number: G01T1/2002 ,  G01T1/2008

Abstract: The invention presents a backscattering scintillation detector. The scintillation detector includes a scintillation crystal detector; a X-ray sensitizing screen, which is disposed forward the scintillation crystal detector and where a backscattered X-ray from an object to be detected is processed and then at least part of the processed X-ray is incident to scintillation crystal detector; and photoelectric multiplier, which is disposed backward the scintillation crystal detector and is configured to collect a light signal from scintillation crystal detector and convert it to an electrical signal. Through the above preferable embodiment, a X-ray sensitizing screen, a scintillation crystal detector, and light guiding and wave-drifting technologies are combined together to obtain a novel scintillation detector, which can improve detection of X-ray, transmission of light signal and conversion of light signal to electrical signal.

Abstract translation: 本发明提出了一种后向散射闪烁检测器。 闪烁检测器包括闪烁晶体检测器; 设置在闪烁晶体检测器前方的X射线增感屏幕，并且处理来自被检测物体的背散射​​X射线，然后处理的X射线的至少一部分入射到闪烁晶体检测器; 以及光电倍增器，其设置在闪烁晶体检测器的后方，并且被配置为从闪烁晶体检测器收集光信号并将其转换为电信号。 通过上述优选实施例，将X射线增感屏，闪烁晶体检测器和导光波漂移技术组合在一起，以获得新的闪烁检测器，其可以改善X射线的检测，光信号的传输和 光信号转换为电信号。