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公开(公告)号：US20250046012A1
公开(公告)日：2025-02-06
申请号：US18576857
申请日：2022-07-06
Applicant: NUCTECH COMPANY LIMITED , Tsinghua University
Inventor： Li ZHANG , Zhiqiang CHEN , Qingping HUANG , Hui DING , Yong ZHOU , Xin JIN , Liming YAO
Abstract: An inspection system and method, the inspection system includes: a carrying device, at least one ray source and a detector assembly. The ray source and the detector assembly are lifted or lowered along a central axis of the carrying device relative to the carrying device. When viewed along the central axis, the ray source is translatable between scanning positions relative to the carrying device. When the ray source is at one of the scanning positions the ray source and the detector assembly are lifted or lowered relative to the carrying device along the central axis, and the ray source emits X-rays; and when the ray source and the detector assembly are lifted or lowered a predetermined distance the ray source translates to another scanning position. The inspection system further reconstructs a three-dimensional scanning image of the object to be inspected based on detection data of the detector assembly.
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公开(公告)号：US20240361257A1
公开(公告)日：2024-10-31
申请号：US18573784
申请日：2022-07-06
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Li ZHANG , Zhiqiang CHEN , Qingping HUANG , Hui DING , Yong ZHOU , Xin JIN , Liming Yao
IPC: G01N23/046 , G01N23/083 , G01N23/10
CPC classification number: G01N23/046 , G01N23/083 , G01N23/10 , G01N2223/204 , G01N2223/3303 , G01N2223/643
Abstract: An inspection system, including: a carrying device; at least one ray source and a detector assembly. When the at least one ray source is located at one of scanning positions relative to the carrying device, the at least one ray source and the detector assembly are lifted or lowered along the rotation axis relative to the carrying device and the at least one ray source emits X-rays. After the at least one ray source and the detector assembly are lifted or lowered a predetermined distance relative to the carrying device, the at least one ray source rotates around the rotation axis relative to the carrying device to another one of scanning positions. The inspection system further reconstructs a three-dimensional scanning image of the object to be inspected based on detection data of the detector assembly.
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Patent Agency Ranking
公开(公告)号：US20230255576A1
公开(公告)日：2023-08-17
申请号：US18011388
申请日：2021-07-02
Applicant: TSINGHUA UNIVERSITY , Nuctech Company Limited , NuRay Technology Co., Ltd.
Inventor： Zhiqiang CHEN , Huaping TANG , Xin JIN
Abstract: The present application relates to a deflection electrode assembly, an X-ray source, and an X-ray imaging system. The deflection electrode assembly includes: a first electrode plate, including a first connection portion and a plurality of first tooth portions, wherein the first electrode plate is formed as a comb shape; and a second electrode plate, including a second connection portion and a plurality of second tooth portions, wherein the second electrode plate is formed as a comb shape. The first electrode plate and the second electrode plate are not in contact with each other, and the plurality of first tooth portions and the plurality of second tooth portions are arranged at least partially in a staggered manner to form a plurality of electron beam passageways; each electron beam passageway is located between adjacent first and second tooth portions.
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公开(公告)号：US20220091051A1
公开(公告)日：2022-03-24
申请号：US17471725
申请日：2021-09-10
Applicant: NUCTECH COMPANY LIMITED , Tsinghua University
Inventor： Zhiqiang CHEN , Li ZHANG , Xiaofei XU , Le SHEN , Ming CHANG , Hu TANG , Xin JIN , Yunda SUN
IPC: G01N23/046 , G01N23/083
Abstract: A multi-channel static CT device is provided, and the multi-channel static CT device includes: a scanning channel including a plurality of scanning sub-channels; a distributed X-ray source including a plurality of ray emission points arranged around the scanning channel; and a detector module including a plurality of detectors arranged around the scanning channel, wherein the plurality of detectors are arranged corresponding to the plurality of ray emission points.
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公开(公告)号：US20170276619A1
公开(公告)日：2017-09-28
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
CPC classification number: G01N23/04 , G01V5/0016 , G01V5/005
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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公开(公告)号：US20170176351A1
公开(公告)日：2017-06-22
申请号：US15257595
申请日：2016-09-06
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Zhiqiang CHEN , Li ZHANG , Tianyi YANG DAI , Ji ZHAO , Xin JIN , Ming CHANG
CPC classification number: G01N23/046 , G01N23/20 , G01N23/20083 , G01N2223/056 , G01N2223/316 , G01N2223/419 , G01N2223/637 , G01V5/0016 , G01V5/005 , G21K1/02
Abstract: Systems and methods for liquid detection are disclosed. An illustrative method for liquid detection herein may include implementing CT imaging and XRD imaging on one or more liquid planes of liquid contained in a container at once by rotating the container so that X-rays from a same radiation source scan a whole area of each of the one or more liquid planes, and generating a substance identification result for the liquid contained in the container based on a CT image and a XRD image, wherein the CT imaging and the XRD imaging are implemented on a same liquid plane or different liquid planes. Consistent with various aspects and features, implementations may identify substances contained in the liquid more quickly and accurately.
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公开(公告)号：US20150185357A1
公开(公告)日：2015-07-02
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.
Abstract translation: 公开了多光谱静态CT装置。 该装置包括多个分布点的形式的射线源，多列检测器，数据采集装置，物品携带和控制装置以及多光谱投影数据处理装置。 本公开的目的是将静态CT扫描技术与多光谱分析技术相结合。 它具有静电CT系统的优点，如扫描速度快，机械结构简单，和/或由于省略滑环而降低成本。 也可以在物品中进行材料鉴定，并可广泛应用于安全检查，海关走私等场合。
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