公开(公告)号：US20220099601A1

公开(公告)日：2022-03-31

申请号：US17420681

申请日：2020-01-03

申请人： NUCTECH (BEIJING) COMPANY LIMITED ,  NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

发明人： 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分类号： G01N23/10 ,  G01N23/04 ,  G01N23/083

摘要： 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.

公开(公告)号：US20190204242A1

公开(公告)日：2019-07-04

申请号：US16234621

申请日：2018-12-28

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

发明人： Xiulin NI ,  Jianmin LI ,  Haitian TAN ,  Yulan LI ,  Weifeng YU ,  Yuanjing LI ,  Hejun ZHOU ,  Zhiqiang CHEN ,  Chunguang ZONG ,  Li ZHANG

IPC分类号： G01N23/046 ,  G01V5/00

CPC分类号： G01N23/046 ,  G01N2223/401 ,  G01V5/005

摘要： 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 non-uniform 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.

公开(公告)号：US20190204243A1

公开(公告)日：2019-07-04

申请号：US16234625

申请日：2018-12-28

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

发明人： 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分类号： G01N23/046

CPC分类号： G01N23/046 ,  G01N2223/33 ,  G01V5/005

摘要： 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.

公开(公告)号：US20180081078A1

公开(公告)日：2018-03-22

申请号：US15709350

申请日：2017-09-19

申请人： NUCTECH COMPANY LIMITED

发明人： Chunguang ZONG ,  Ying LI ,  Hejun ZHOU ,  Jianmin LI ,  Yuanjing LI ,  Yulan LI ,  Li ZHANG ,  Zhiqiang CHEN

IPC分类号： G01V5/00

CPC分类号： G01V5/0066 ,  G01V5/0016 ,  G01V5/0025

摘要： 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.