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公开(公告)号：US11385377B2
公开(公告)日：2022-07-12
申请号：US16627426
申请日：2019-05-29
Applicant: Nuctech Company Limited
Inventor： Hongbin Hou , Mingzhi Hong , Jinning Liang , Qingping Huang , Xin Jin
Abstract: A shielding structure of the safety inspection equipment includes a first carbon fiber layer, a polyurethane layer and a second carbon fiber layer, which are sequentially stacked to be configured as a shielding channel with two opened ends. The second carbon fiber layer is an outer layer of the shielding channel. The first carbon fiber layer and the second carbon fiber layer are made of carbon fiber materials. The polyurethane layer is made of polyurethane materials.
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公开(公告)号：US20210323696A1
公开(公告)日：2021-10-21
申请号：US16336750
申请日：2019-01-04
Applicant: Nuctech Company Limited
Inventor： Li Zhang , Zhiqiang Chen , Qingping Huang , Wenyuan Bi , Xin Jin , Ming Chang , Mingzhi Hong , Yancai Wang
Abstract: A baggage cart is disclosed. The baggage cart is used for security inspection in an airport, comprising: a cart body, comprising at least one compartment having a door; and a locking device, coupled to the compartment and configured to lock the compartment in response to receiving an indication signal.
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公开(公告)号：US10408966B2
公开(公告)日：2019-09-10
申请号：US15122659
申请日：2015-03-03
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Zhiqiang Chen , Li Zhang , Tianyi Yangdai , Qingping Huang
IPC: G01T1/00 , G01V5/00 , G01N23/10 , G01N23/083 , G01T1/36
Abstract: The present disclosure discloses an inspection device, an inspection method and an inspection system. The device comprises a distributed ray source comprising multiple source points; a light source collimator configured to converge the rays generated by the distributed ray source to form an inverted fan-shaped ray beam; a scatter collimator configured to only allow rays scattered at one or more particular scattering angles which are generated by the rays from the light source collimator interacting with inspected objects to pass; at least one detector each comprising multiple detection units which have an energy resolution capability and are substantially arranged in a cylindrical surface to receive the scattered rays passing through the scatter collimator; and a processing apparatus configured to calculate energy spectrum information of the scattered rays from the inspected objects based on a signal output by the detectors.
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公开(公告)号：US10338011B2
公开(公告)日：2019-07-02
申请号：US15263207
申请日：2016-09-12
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Zhiqiang Chen , Li Zhang , Tianyi Yang Dai , Qingping Huang , Yunda Sun , Xin Jin
IPC: G01N23/046 , G01N23/083 , G01N23/207 , G21K1/02 , G01N23/20 , G01V5/00
Abstract: The present disclosure relates to multi-modality detection systems and methods. One illustrative multi-modality detection system may include a distributed radiation source configured to irradiate an object under detection, a primary collimator configured to separate rays of the distributed radiation source into two parts, wherein one part is for CT detection and the other part is for XRD detection, a CT detection device configured to perform a CT detection to acquire a CT image of the object under detection, and an XRD detection device configured to perform an XRD detection to acquire an XRD image of the object under detection, wherein the CT detection and the XRD detection are performed simultaneously.
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5.发明申请公开(公告)号：US20140314200A1
公开(公告)日：2014-10-23
申请号：US14355240
申请日：2013-07-15
Applicant: NUCTECH COMPANY LIMITED
Inventor： Zhiqiang Chen , Yuanjing Li , Li Zhang , Jinyu Zhang , Zhanjun Duan , Longsong Ran , Qingping Huang
IPC: G01V5/00
CPC classification number: G01V5/005 , A61B6/032 , A61B6/035 , G01N23/046 , G01V5/0016 , G01V5/0041
Abstract: The present invention discloses a CT security inspection system for baggage. The CT security inspection system comprises a scanning passage through which a baggage enters and exits the CT security inspection system for baggage, a X-ray source provided at one side of the scanning passage, and, a gantry provided at an opposite side of the scanning passage, and on which a plurality of detector units are mounted. In each of the detector units, a vertex point of at least one detector unit is positioned in a circular arc with its center at a center of the scanning passage, and the detector units are arranged successively. All the detector crystal receiving faces of the plurality of detector units are within a scope of radiating ray beams with its center at a target of the X-ray source. In each of the detector units, a connection line between a midpoint of at least one of the detector crystal receiving faces and the target of the X-ray source is normal to the corresponding detector crystal receiving face.
Abstract translation: 本发明公开了一种行李的CT安全检查系统。 CT安全检查系统包括扫描通道，行李通过该扫描通道进入和离开用于行李的CT安全检查系统，设置在扫描通道的一侧的X射线源，以及设置在扫描的相对侧的台架 通道，并且其上安装有多个检测器单元。 在每个检测器单元中，至少一个检测器单元的顶点定位在其中心在扫描通道的中心的圆弧中，并且检测器单元被连续布置。 多个检测器单元的所有检测器晶体接收面都在辐射射线束的范围内，其中心位于X射线源的目标。 在每个检测器单元中，检测器晶体接收面中的至少一个的中点与X射线源的目标之间的连接线垂直于相应的检测器晶体接收面。
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Patent Agency Ranking
公开(公告)号：US11925183B2
公开(公告)日：2024-03-12
申请号：US17661257
申请日：2022-04-28
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Zhiqiang Chen , Li Zhang , Qingping Huang , Yong Zhou , Hui Ding , Chao Ji
IPC: G01N23/046 , A22B5/00 , G01N23/083 , G01N23/18 , G01N33/12
CPC classification number: A22B5/007 , G01N23/046 , G01N23/083 , G01N23/18 , G01N33/12 , G01N2223/1016 , G01N2223/204 , G01N2223/30 , G01N2223/3307 , G01N2223/3308 , G01N2223/419 , G01N2223/5015 , G01N2223/618 , G01N2223/643
Abstract: The present disclosure relates to a static CT detection device, including: a shielding body, formed with a detection channel through which an object under detection can pass; a ray source, emitting rays for detecting the object under detection when the object under detection passes through the detection channel; and a detector, for acquiring the rays emitted by the ray source and having passed through the detection channel, wherein the shielding body is formed with an opening portion, and the opening portion extends from an inlet of the detection channel to an outlet of the detection channel.
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公开(公告)号：US10436932B2
公开(公告)日：2019-10-08
申请号：US15279207
申请日：2016-09-28
Applicant: NUCTECH COMPANY LIMITED , CINTS CO. LTD.
Inventor： Qitian Miao , Zhiqiang Chen , Li Zhang , Yunda Sun , Ming Huang , Qingping Huang , Ming Hu , Lei Lei , Jie Xia
IPC: G01N23/046 , G01V5/00
Abstract: The present disclosure discloses an inspection system for quarantine and a method thereof. The CT technology is applied to the field of quarantine supervision, overcoming a problem of objects in an image of a single-view or a multi-view X-ray machine being overlapped, as well as a problem of organics including contrabands in a conventional CT image being not highlighted, not elaborated, and having bad contrast. Accuracy and efficiency of inspecting an object by human operator for quarantine inspection can be considerably improved, which is of a high application value.
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公开(公告)号：US09784883B2
公开(公告)日：2017-10-10
申请号：US14577069
申请日：2014-12-19
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Zhiqiang Chen , Li Zhang , Qingping Huang , Yunda Sun , Xin Jin , Tao Yang , Le Shen , Ji Zhao
CPC classification number: G01V5/0041 , G01N23/046 , G01T1/2985 , G01V5/005
Abstract: Multi-spectral static CT apparatuses are disclosed. The apparatus includes a ray source in a form of multiple distributed spots, multiple columns of detectors, a data acquisition device, an article carrying and control device, and a multi-spectral projection data processing device. An object of the present disclosure is to combine static CT scanning technology with multi-spectral analysis technology. It has an advantage of a static CT system, such as high scanning speed, simple mechanic structure, and/or cost reduction due to omission of slip ring. It also can perform identification of material in an article, and can be widely applied in occasions such as safety inspection, and smuggling suppression at customs.
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公开(公告)号：US09746579B2
公开(公告)日：2017-08-29
申请号：US14576737
申请日：2014-12-19
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Li Zhang , Zhiqiang Chen , Qingping Huang , Xin Jin , Yunda Sun , Le Shen , Ji Zhao
CPC classification number: G01V5/005 , G01N23/046 , G01T7/08 , G06T11/003 , G06T2207/10072 , G06T2211/40
Abstract: A CT system and method thereof are disclosed. The system includes: a conveyor mechanism; a first scanning stage configured to scan the object and generate a first digital signal; a second scanning stage spaced from the first scanning stage at a preset distance in a direction of the object's movement; a processing device configured to reconstruct a CT image of the object at a first image quality based on the first digital signal, and analyze the CT image; and a control device configured to adjust a scanning parameter of the second scanning stage based on an analysis result of the processing device to cause the second scanning stage to output a second digital signal. The processing device reconstructs a CT image of the object at a second image quality higher than the first image quality at least based on the second digital signal. The system takes full advantage of the distributed ray sources which replace the normal slip ring technology.
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公开(公告)号：US20170184756A1
公开(公告)日：2017-06-29
申请号：US15279207
申请日：2016-09-28
Applicant: NUCTECH COMPANY LIMITED , CINTS CO. LTD.
Inventor： Qitian Miao , Zhiqiang Chen , Li Zhang , Yunda Sun , Ming Huang , Qingping Huang , Ming Hu , Lei Lei , Jie Xia
IPC: G01V5/00
CPC classification number: G01V5/005 , G01N23/046 , G01V5/0041
Abstract: The present disclosure discloses an inspection system for quarantine and a method thereof. The CT technology is applied to the field of quarantine supervision, overcoming a problem of objects in an image of a single-view or a multi-view X-ray machine being overlapped, as well as a problem of organics including contrabands in a conventional CT image being not highlighted, not elaborated, and having bad contrast. Accuracy and efficiency of inspecting an object by human operator for quarantine inspection can be considerably improved, which is of a high application value.
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