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公开(公告)号：US10371648B2
公开(公告)日：2019-08-06
申请号：US15301345
申请日：2015-12-14
Applicant: NUCTECH COMPANY LIMITED
Inventor： Li Zhang , Xin Jin , Huaping Tang , Qingping Huang , Yunda Sun , Zhiqiang Chen
IPC: G01N23/00 , G01N23/04 , G01N23/046 , G01V5/00
Abstract: The present disclosure discloses a radiography system including: a ray source, comprising a plurality of X-ray generators which are distributed on one or more planes intersected with a moving direction of an object being inspected; a detector module comprising a plurality of detection units; a data collection circuit; a controller, configured to control at least two X-ray generators of the plurality of X-ray generators in the ray source to generate X-rays alternately such that the object is scanned by the generated X-rays; and control the detector module and the data collection circuit to respectively obtain detection data corresponding to the at least two X-ray generators; and a data processing computer, configured to create images of the object being inspected in view angles of the at least two X-ray generators based on the detection data. The above embodiments may implement a multi-view-angle perspective imaging system within a single scan plane by utilizing a distributed X-ray source and reuse of the detectors.
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公开(公告)号：US10078056B2
公开(公告)日：2018-09-18
申请号：US14901970
申请日：2015-08-27
Applicant: Nuctech Company Limited
Inventor： Huaping Tang , Zhiqiang Chen , Yuanjing Li , Zhuoyan Liu , Yonggang Wang , Zhanfeng Qin
CPC classification number: G01N23/04 , B07C5/3416 , B07C2501/0009
Abstract: An X-ray product quality online inspection device of the present invention comprises: a distributed X-ray source having a plurality of targets and being able to generate X-rays for irradiating an inspected product from the plurality of targets in a predetermined sequence; a detector for receiving the X-rays generated by the distributed X-ray source and outputting a signal representing characteristics of the received X-rays; a transport device which is located between the distributed X-ray source and the detector for carrying the inspected product to pass through an X-ray radiation region, wherein the transport device is arranged as a continuous transport mechanism which matches a production line of the inspected product; and a power supply and control device, which is used to supply power to and control the X-ray product quality online inspection device.
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公开(公告)号：US09341736B2
公开(公告)日：2016-05-17
申请号：US14134845
申请日：2013-12-19
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： Huaping Tang , Yuanjing Li , Ziran Zhao , Yaohong Liu , Zhanfeng Qin , Jinyu Zhang , Hu Tang
CPC classification number: G01V5/0016 , G01N23/046 , G01V5/005
Abstract: This invention relates to an X-ray goods inspection apparatus, and in particular to a goods inspection apparatus using distributed X-ray source.
Abstract translation: 本发明涉及一种X射线物品检查装置，特别涉及一种使用分布式X射线源的货物检验装置。
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公开(公告)号：US10969346B2
公开(公告)日：2021-04-06
申请号：US14901989
申请日：2015-08-27
Applicant: Nuctech Company Limited
Inventor： Huaping Tang , Zhiqiang Chen , Yuanjing Li , Zhuoyan Liu , Yonggang Wang , Zhanfeng Qin
IPC: G01N23/04 , G01N23/046 , B07C5/34
Abstract: An X-ray product quality automatic inspection device of the present invention comprises: a distributed X-ray source having a plurality of targets and being able to generate X-rays for irradiating an inspected product from the plurality of targets in a predetermined sequence; a detector for receiving the X-rays generated by the distributed X-ray source and outputting a signal representing characteristics of the received X-rays; a transport device for carrying the inspected product to pass through an X-ray radiation region; and a power supply and control device, which is used to supply power to and control the X-ray product quality automatic inspection device, to form characteristic information of the inspected product according to the signal from the detector and to provides an inspection and analysis result of the inspected product according to the characteristic information.
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公开(公告)号：US10648929B2
公开(公告)日：2020-05-12
申请号：US15300751
申请日：2015-12-14
Applicant: NUCTECH COMPANY LIMITED
Inventor： Huaping Tang , Zhiqiang Chen , Yuanjing Li , Xin Jin , Zhuoyan Liu , Yonggang Wang , Hua Peng , Zhanfeng Qin
Abstract: Embodiments of the present invention provide a trailed multiple-viewing-angle item inspection system and method of operating the same. The inspection system includes: a trailer vehicle, a radiation inspection device, a power supply device and a power grid connection device. The trailer vehicle is mounted with a power supply chamber within which a power supply device and a power grid connection device are mounted and an inspection chamber within which a radiation inspection device is mounted. The radiation inspection device includes: ray radiation source configured to emit X-rays from various positions, detectors, a body frame, a transfer device, a data and image process system and a display and operation device. The trailed multiple-viewing-angle item inspection system of the present invention can obtain a transmission image containing depth information of an item by its one pass through the device, and achieve a high-speed inspection, a good image quality and a high inspection efficiency of hazardous articles, and its flexibility and movability can meet requirements in various working conditions.
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Patent Agency Ranking
公开(公告)号：US10274636B2
公开(公告)日：2019-04-30
申请号：US14582076
申请日：2014-12-23
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： Huaping Tang , Zhiqiang Chen , Chuanxiang Tang , Huaibi Chen , Yuanjing Li , Ziran Zhao , Yaohong Liu , Shangmin Sun , Xinshui Yan , Zhanfeng Qin
Abstract: The present invention may perform fluoroscopic imaging simultaneously on the subjects in at least two channels using only one electron accelerator, at least two sets of X-ray beams and at least two sets of detector systems, through the design of the electron accelerator, the shielding and collimating device, the at least two detector arrays and various mechanical composite structures. The X-ray fluoroscopic imaging system according to the present invention may be designed in specific forms of a stationary type, an assembled type, a track mobile type or vehicular mobile type, etc., and has advantages such as simple structure, low cost, strong function, good image quality and the like.
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公开(公告)号：US09991085B2
公开(公告)日：2018-06-05
申请号：US15696919
申请日：2017-09-06
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Yuanjing Li , Yaohong Liu , Jinsheng Liu , Huaping Tang , Chuanxiang Tang , Huaibi Chen , Xinshui Yan
CPC classification number: H01J35/14 , H01J35/16 , H01J35/30 , H01J2235/16
Abstract: An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed. Periodic scanning is performed with the initial low-energy electron beams, which are thus caused to be reciprocally deflected. A current-limiting device is provided in the travel path of the electron beams along the direction of the reciprocal deflection. Through holes arranged in an array on the current-limiting device, only part of the electron beams targeting specific positions can pass to form sequential electron beam currents distributed in an array. These electron beam currents are accelerated by a high-voltage electric field to obtain high energy, bombard an anode target, and thus sequentially generate corresponding focus spots and x-rays distributed in an array at the anode target.
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公开(公告)号：US09653251B2
公开(公告)日：2017-05-16
申请号：US14490526
申请日：2014-09-18
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Chuanxiang Tang , Huaping Tang , Huaibi Chen , Wenhui Huang , Huayi Zhang , Shuxin Zheng
CPC classification number: H01J35/14 , H01J35/06 , H01J35/12 , H01J35/16 , H01J2235/068 , H01J2235/086 , H01J2235/087 , H05G1/32
Abstract: The present application provides an external thermionic cathode distributed x-ray apparatus, including a vacuum box which is sealed at its periphery, where the interior thereof is high vacuum; a plurality of electron transmitting units arranged in a linear array and installed on the side wall of the vacuum box, where each electron transmitting unit is independent to each other; an anode installed in the center inside the vacuum box, where in the direction of length, the anode is parallel to the orientation of the electron transmitting unit, and in the direction of width, the anode has a predetermined angle with respect to the plane of the electron transmitting unit; a power supply and control system having a high voltage power supply and a focusing power supply; and a transmitting control means and a control system.
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公开(公告)号：US20140185776A1
公开(公告)日：2014-07-03
申请号：US14136362
申请日：2013-12-20
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： Yuanjing Li , Yaohong Liu , Jinsheng Liu , Huaping Tang , Chuanxiang Tang , Huaibi Chen , Xinshui Yan
IPC: H01J35/14
CPC classification number: H01J35/14 , H01J35/16 , H01J35/30 , H01J2235/16
Abstract: An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed. Periodic scanning is performed with the initial low-energy electron beams, which are thus caused to be reciprocally deflected. A current-limiting device is provided in the travel path of the electron beams along the direction of the reciprocal deflection. Through holes arranged in an array on the current-limiting device, only part of the electron beams targeting specific positions can pass to form sequential electron beam currents distributed in an array. These electron beam currents are accelerated by a high-voltage electric field to obtain high energy, bombard an anode target, and thus sequentially generate corresponding focus spots and x-rays distributed in an array at the anode target.
Abstract translation: 一种生成分布式X射线的装置和方法。 真空中使用电子枪的热阴极来产生具有一定的初始移动能量和速度的电子束。 用初始低能电子束进行周期性扫描，从而使其相互偏转。 电流限制装置沿着往复偏转的方向设置在电子束的行进路径中。 通过排列在限流装置上的阵列中的通孔，只有部分针对特定位置的电子束可以通过以形成分布在阵列中的顺序电子束电流。 这些电子束电流通过高电压电场加速以获得高能量，轰击阳极靶，从而顺序地产生在阳极靶上分布在阵列中的相应聚焦点和x射线。
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公开(公告)号：US10224170B2
公开(公告)日：2019-03-05
申请号：US15822219
申请日：2017-11-27
Applicant: NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
Inventor： Huaping Tang , Chuanxiang Tang , Huaibi Chen
Abstract: The present invention provides an X-ray generating apparatus and an X-ray fluoroscopy imaging system comprising the same. The X-ray generating apparatus comprises: an electron accelerator, an electron emission unit, and a target; and a shielding and collimating device, including a shielding structure and multiple collimators arranged in the shielding structure, wherein the collimators are thin gaps extending from the target to an exterior surface of the shielding structure and having an axis transverse an electron beam shooting the target, and at least two collimators forming different angles with the electron beam are arranged on the same side of a plane contains the electron beam shooting the target, and the planes where the collimators locate form angles from 30 degrees to 150 degrees with the electron beam shooting the target, to draw out planar beams having different draw-out angles, each having uniform intensity distribution in its respective plane.
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