公开(公告)号：US09885801B2

公开(公告)日：2018-02-06

申请号：US14748407

申请日：2015-06-24

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Li Zhang ,  Xin Jin ,  Qingping Huang ,  Le Shen ,  Yunda Sun

IPC: G01T1/202 ,  A61B6/00 ,  G01T1/36 ,  G01V5/00 ,  G01T7/08

CPC classification number: G01V5/0041 ,  A61B6/4266 ,  G01T1/202 ,  G01T1/362 ,  G01T7/08 ,  G01V5/005

Abstract: The present disclosure discloses a detector device comprising a plurality of detector assemblies. Each detector assembly comprises at least one detection crystal units having a first energy response and those having a second energy response, which are both arranged along a first direction at intervals, each detection crystal unit having a first/second energy response including at least one detection crystals having a first/second energy response arranged along a second direction. The at least one detection crystal units having a first energy response and the at least one detection crystal units having a second energy response are, at least partially, alternatively arranged along the first direction when viewed from an incidence direction of the X-ray. The present disclosure also discloses a dual energy CT system having the detector device and a CT detection method using this system.

公开(公告)号：US20180022301A1

公开(公告)日：2018-01-25

申请号：US15609013

申请日：2017-05-31

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Jianmin Li ,  Hao Yu ,  Zhiqiang Chen ,  Yuanjing Li ,  Yulan Li ,  Li Zhang ,  Jingyu Gu ,  Dongyu Wang

IPC: B60R16/033 ,  H01M10/052 ,  H01M10/42 ,  H02J7/00

CPC classification number: B60R16/033 ,  H01M10/052 ,  H01M10/4207 ,  H02J3/14 ,  H02J7/0021 ,  Y02B70/3225 ,  Y04S20/222

Abstract: The present disclosure discloses an in-vehicle detection system and power supply system and power supply controller, which relates to the power supply control field. The power supply system comprises a low-power generator; a battery pack for supplying power to the in-vehicle detection system; a charger electrically connected to the low-power generator and the battery pack, respectively; and a power supply controller electrically connected to the battery pack and the low-power generator, respectively. The present disclosure uses a low-power generator and a battery pack to substitute a high-power generator, which can reduce the requirement on a peak power of the generator by the in-vehicle detection system, and improve the efficiency of the power supply. In addition, since a low-power generator and a lithium battery pack are used to substitute the high-power generator, it is favorable to the lightweight design of the in-vehicle detection system, and meanwhile reduces noises and vibration, and is favorable to improving the user experience and performance metrics.

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：US20170184513A1

公开(公告)日：2017-06-29

申请号：US15281038

申请日：2016-09-29

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Yumei Chen ,  Yaohong Liu ,  Xinshui Yan ,  Weiqiang Guan ,  Wei Yin

IPC: G01N23/04

Abstract: The present disclosure provides a ray calibration device and a working method thereof, and a radiation imaging system and a working method thereof, and belongs to the field of radiation imaging technology. The present disclosure can solve the problems that the existing calibration devices have low calibration efficiency and require relatively large spaces. The ray calibration device of the present disclosure includes a driving part, a cam part and a calibration part, wherein the calibration part is located below the cam part; the driving part is adapted to drive the cam part to rotate; and the cam part is adapted to exert a force on the calibration part to enable the calibration part to move into a ray area downwards.

公开(公告)号：US20170068017A1

公开(公告)日：2017-03-09

申请号：US15230316

申请日：2016-08-05

Applicant: NUCTECH COMPANY LIMITED ,  NUCTECH JIANGSU COMPANY LIMITED

Inventor： Ziran ZHAO ,  Zhiqiang Chen ,  Wanlong Wu ,  Li Zhang ,  Yingkang Jin ,  Ming Ruan

IPC: G01V5/00

CPC classification number: G01V5/0016

Abstract: A safety inspection apparatus is disclosed in embodiments of the present invention. The safety inspection apparatus includes: an x-ray source including a ray emission focal spot; and a plurality of detector modules each of which has a ray receiving surface, and which are arranged along a plurality of straight line segments. The plurality of straight line segments include a first straight line segment and two second straight line segments, and, the two second straight line segments extend from the two ends of the first straight line segment towards the x-ray source side, respectively. In a plane where the sectorial ray beam is located, a normal to the ray receiving surface of each of the detector modules at a midpoint of the ray receiving surface of the each of the detector modules passes generally through the ray emission focal spot of the x-ray source.

Abstract translation: 在本发明的实施例中公开了一种安全检查装置。 安全检查装置包括：x射线源，包括射线发射焦点; 以及多个检测器模块，每个检测器模块具有一个光线接收表面，并沿着多条直线段布置。 多个直线段包括第一直线段和两个第二直线段，并且两个第二直线段分别从第一直线段的两端朝向x射线源侧延伸。 在扇形射线束所在的平面中，每个检测器模块的射线接收表面的中点处的每个检测器模块的射线接收表面的法线通常通过x的射线发射焦斑 来源。

公开(公告)号：US20170016856A1

公开(公告)日：2017-01-19

申请号：US15280744

申请日：2016-09-29

Applicant: Nuctech Company Limited

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Huishao He ,  Qiufeng Ma ,  Weiping Zhu ,  Xiang Zou ,  Jianping Chang ,  Song Liang

IPC: G01N27/62 ,  H01J49/04

CPC classification number: G01N27/622 ,  G01N1/02 ,  G01N1/2211 ,  G01N1/405 ,  G01N1/42 ,  G01N30/60 ,  G01N30/722 ,  G01N2001/028 ,  H01J49/0422 ,  H01J49/0459 ,  H01J49/0468 ,  G01N30/6043 ,  G01N30/6078

Abstract: A detection apparatus and a detection method are disclosed. In one aspect, the detection apparatus includes a sampling device for collecting samples to be checked. It further includes a sample pre-processing device configured to pre-process the sample from the sampling device. It further includes a sample analyzing device for separating samples from the pre-processing device and for analyzing the separated samples. The detection apparatus is miniaturized and highly precise, and is capable of quickly and accurately detecting gaseous phase or particulate substances, and it has applications for safety inspections at airports, ports, and subway stations.

Abstract translation: 公开了一种检测装置和检测方法。 一方面，检测装置包括用于收集要检查的样品的取样装置。 其还包括被配置为从采样装置预处理样品的样本预处理装置。 其还包括用于从预处理装置分离样品并分析分离的样品的样品分析装置。 该检测装置小型化，精度高，能够快速，准确地检测气相或颗粒物质，并具有在机场，港口，地铁站的安全检查的应用。

公开(公告)号：US20160356679A1

公开(公告)日：2016-12-08

申请号：US15238598

申请日：2016-08-16

Applicant: Nuctech Company Limited

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Huishao He ,  Qiufeng Ma ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Weiping Zhu ,  Xiang Zou ,  Jianping Chang

IPC: G01N1/24 ,  G01N30/30

CPC classification number: G01N1/24 ,  G01N1/2211 ,  G01N30/30

Abstract: A sampling device and a gas curtain guide are disclosed. In one aspect, the sampling device includes a chamber body. The chamber body includes a sample inlet, located at a first end of the chamber body, configured for suction of a sample. The chamber body further includes a sample outlet, located adjacent to a second end opposite to the first end of the chamber body, configured to discharge the sample. The chamber body further includes a gas inflation inlet, in a wall of the chamber body, configured to introduce a swirl gas flow into the chamber body. The chamber body further includes a gas exhaust opening configured to discharge gas so as to, together with the gas inflation inlet, generate a tornado type gas flow in the chamber body, which moves spirally from the first end to the second end of the chamber body.

Abstract translation: 公开了一种采样装置和气幕导引装置。 在一个方面，采样装置包括室主体。 腔体包括位于腔室主体的第一端处的样品入口，其构造成用于抽吸样品。 腔室主体还包括样品出口，其位于与腔体主体的第一端相对的第二端附近，被配置为排出样品。 腔室主体还包括气室充气入口，其在腔室主体的壁中，构造成将旋流气流引入腔体。 室体还包括排气口，该气体排出口被构造成排出气体，以便与气体充气入口一起在室主体中产生龙卷风型气流，其从室主体的第一端至第二端螺旋地移动 。

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：US20160046860A1

公开(公告)日：2016-02-18

申请号：US14827248

申请日：2015-08-14

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Yanchun WANG ,  Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Jianping Chang ,  Shuqing Zhao ,  Wenjian Zhang ,  Yongqiang Wang

IPC: C09K11/77

CPC classification number: C09K11/7771 ,  C04B35/547 ,  C04B35/62615 ,  C04B35/6303 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3224 ,  C04B2235/445 ,  C04B2235/5436 ,  C04B2235/5463 ,  C04B2235/604 ,  C04B2235/656 ,  C04B2235/6565 ,  C04B2235/662 ,  G01T1/2935

Abstract: The present disclosure is directed to a low cost sintering process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics, comprising uniaxial hot pressing primary sintering and hot isostatic pressing secondary sintering.

Abstract translation: 本公开涉及用于制备具有通式Gd 2 O 2 S（称为GOS，闪烁陶瓷）的钆硫氧化物的低成本烧结方法，其包括单轴热压一次烧结和热等静压二次烧结。