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公开(公告)号：US10935691B2
公开(公告)日：2021-03-02
申请号：US16234625
申请日：2018-12-28
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Kejun Kang , Jianmin Li , Xiulin Ni , Yulan Li , Yuanjing Li , Zhiqiang Chen , Li Zhang , Liang Li , Xiang Zou , Weifeng Yu , Hejun Zhou , Chunguang Zong
IPC: G01V5/00 , G01N23/046
Abstract: The present disclosure relates to the technical field of CT detection, and in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure comprises a radioactive source device, a detection device, a rotation monitoring device and an imaging device, wherein the detection device obtains detection data at a frequency that is N times a beam emitting frequency of the radioactive source device; the rotation monitoring device detects a rotation angle of the detection device and transmits a signal to the imaging device each time the detection device rotates by a preset angle; the imaging device determines a rotational position of the detection device each time the radioactive source device emits a beam according to the signal transmitted by the rotation monitoring device and the detection data of the detection device.
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公开(公告)号：US10007022B2
公开(公告)日：2018-06-26
申请号：US15709350
申请日：2017-09-19
Applicant: NUCTECH COMPANY LIMITED
Inventor： Chunguang Zong , Ying Li , Hejun Zhou , Jianmin Li , Yuanjing Li , Yulan Li , Li Zhang , Zhiqiang Chen
CPC classification number: G01V5/0066 , G01V5/0016 , G01V5/0025
Abstract: A ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the ray inspection system is adapted to be stacked in the container yard.
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Patent Agency Ranking
公开(公告)号：US10782246B2
公开(公告)日：2020-09-22
申请号：US15827739
申请日：2017-11-30
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Chunguang Zong , Ying Li , Hejun Zhou , Quanwei Song , Jianmin Li , Yulan Li , Yuanjing Li , Li Zhang , Zhiqiang Chen
Abstract: A movable ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The movable ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the movable ray inspection system is adapted to be stacked in the container yard.
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公开(公告)号：US09000392B2
公开(公告)日：2015-04-07
申请号：US13726285
申请日：2012-12-24
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Yigang Yang , Hejun Zhou , Yi Liu , Qinjian Zhang , Yongqiang Wang
IPC: G01T3/00
Abstract: The present invention provides a cellular thermal neutron detector, comprising: a cellular structure comprised of one or more hollow regular hexagonal prism-shaped cellular units, wherein a neutron absorbing material is coated on an inner side of a pipe wall of each of the cellular units. Since the neutron-sensitive cellular structure is employed, the present invention can perform thermal neutron detection without using the scarce nuclide 3He, and effectively reduce the manufacture costs of the thermal neutron detector. Further, the present invention has characteristics such as a reduced or eliminated neutron detecting dead zone.
Abstract translation: 本发明提供一种细胞热中子检测器，包括：由一个或多个中空规则六边形棱柱形细胞单元组成的细胞结构，其中中子吸收材料涂覆在每个细胞单元的管壁的内侧 。 由于采用了中子敏感的细胞结构，本发明可以在不使用稀少的核素3He的情况下进行热中子检测，有效地降低热中子检测器的制造成本。 此外，本发明具有诸如减少或消除的中子检测死区的特征。
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公开(公告)号：US11822043B2
公开(公告)日：2023-11-21
申请号：US17420681
申请日：2020-01-03
Inventor： Zhiqiang Chen , Yuanjing Li , Li Zhang , Jianmin Li , Shangmin Sun , Chunguang Zong , Yu Hu , Quanwei Song , Hejun Zhou , Weifeng Yu , Jinguo Cao , Bing Fu
IPC: G01N23/04 , G01N23/083 , G01N23/087 , G01N23/10 , G01V5/00 , G01N23/18
CPC classification number: G01V5/0066 , G01N23/04 , G01N23/083 , G01N23/087 , G01N23/10 , G01N23/18 , G01V5/0008 , G01V5/0016 , G01V5/0041 , G01N2223/04 , G01N2223/3303 , G01N2223/40 , G01N2223/639
Abstract: The present disclosure provides a radiation inspection apparatus and a radiation inspection method. The radiation inspection apparatus includes: a radiation inspection device comprising a ray source and a detector that cooperates with the ray source to perform scanning inspection on an object to be inspected, the radiation inspection device having an inspection channel for the object to be inspected to pass through when scanning inspection is performed thereon; and traveling wheels provided at the bottom of the radiation inspection device to enable the radiation inspection apparatus to travel in an extension direction of the inspection channel, and the traveling wheels are configured to rotate 90° to enable the radiation inspection apparatus to travel in a direction perpendicular to the extension direction of the inspection channel.
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公开(公告)号：US11327198B2
公开(公告)日：2022-05-10
申请号：US16234621
申请日：2018-12-28
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Xiulin Ni , Jianmin Li , Haitian Tan , Yulan Li , Weifeng Yu , Yuanjing Li , Hejun Zhou , Zhiqiang Chen , Chunguang Zong , Li Zhang
IPC: G01N23/046 , G01V5/00 , A61B6/03 , A61B6/00 , G01N23/18
Abstract: The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a nonuniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.
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公开(公告)号：US20180172604A1
公开(公告)日：2018-06-21
申请号：US15827739
申请日：2017-11-30
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Chunguang Zong , Ying Li , Hejun Zhou , Quanwei Song , Jianmin Li , Yulan Li , Yuanjing Li , Li Zhang , Zhiqiang Chen
CPC classification number: G01N21/9081 , G01N21/01 , G01N23/04 , G01V5/0016 , G01V5/0025
Abstract: A movable ray inspection system used to be mounted in a container yard to inspect an object within a container is provided. The movable ray inspection system includes: a ray generator device configured to emit a ray, a ray receiving device configured to receive the ray, and at least one chamber for receiving the ray generator device and the ray receiving device therein. Each of the at least one chamber is configured to be a standard container or a chamber which has a same shape, a same size and a same structure as a standard container such that the movable ray inspection system is adapted to be stacked in the container yard.
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