公开(公告)号：EP4368980A1

公开(公告)日：2024-05-15

申请号：EP22836962.5

申请日：2022-07-06

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  HUANG, Qingping ,  DING, Hui ,  ZHOU, Yong ,  JIN, Xin ,  YAO, Liming

IPC分类号： G01N23/10 ,  G01N23/04

CPC分类号： G01V5/00 ,  G01N23/046 ,  G01N23/10 ,  G01N23/04

摘要： Provided are an inspection system and an inspection method, the inspection system includes: a carrying device (300); at least one ray source (100) each includes a separate housing (110) to define a vacuum space and target spots enclosed within the housing (110), and a detector assembly (200). The at least one ray source (100) is rotatable between a plurality of scanning positions around a rotation axis relative to the carrying device (300). The at least one ray source (100) and the detector assembly (200) may be lifted or lowered along the rotation axis relative to the carrying device (300). When the at least one ray source (100) is located at one of scanning positions relative to the carrying device (300), the at least one ray source (100) and the detector assembly (200) are lifted or lowered along the rotation axis relative to the carrying device (300) and the at least one ray source (100) emits X-rays. After the at least one ray source (100) and the detector assembly (200) are lifted or lowered a predetermined distance relative to the carrying device (300), the at least one ray source (100) rotates around the rotation axis relative to the carrying device (300) to another one of scanning positions.

公开(公告)号：EP4368979A1

公开(公告)日：2024-05-15

申请号：EP22837013.6

申请日：2022-07-07

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  HUANG, Qingping ,  ZHOU, Yong ,  ZHAO, Zhenhua ,  DING, Hui ,  JIN, Xin ,  JI, Chao

IPC分类号： G01N23/046 ,  A61B6/03 ,  G01V5/00

摘要： A ray scanning device, comprising a conveying device (1) for transporting a tested object (6) through a scanning area of the ray scanning device; a ray source (3) comprising a plurality of ray source modules (31, 32, 33, 34), each of the ray source modules (31, 32, 33, 34) comprising at least one ray source point; observing from the conveying direction of the tested object (6), the plurality of ray source modules (31, 32, 33, 34) being arranged around the scanning area in a non-closed structure having an opening on one side of the scanning area; and a detector (4) for detecting rays transmitted through the tested object (6) during scanning and comprising a plurality of detector groups (41, 42, 43, 44), the end portions of the plurality of detector groups (41, 42, 43, 44) being connected to each other and arranged around the scanning area in a non-closed structure having an opening on one side of the scanning area; the opening of the non-closed structure of the ray source (3) being arranged opposite to the opening of the non-closed structure of the detector (4). The plurality of detector groups (41, 42, 43, 44) of the detector (4) are fixed in a same plane perpendicular to the conveying direction of the tested object (6), and the plurality of ray source modules (31, 32, 33, 34) of the ray source (3) are arranged in a plurality of different planes perpendicular to the conveying direction of the tested object (6)

公开(公告)号：EP4369060A1

公开(公告)日：2024-05-15

申请号：EP22837024.3

申请日：2022-07-07

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  HUANG, Qingping ,  ZHOU, Yong ,  ZHAO, Zhenhua ,  DING, Hui ,  JIN, Xin ,  JI, Chao

IPC分类号： G01V5/00 ,  G01N23/046

摘要： Embodiments of the present application provide a ray scanning device, comprising: a conveying apparatus, which transports an object to be detected through a scanning region of the ray scanning device; a ray source, which comprises a plurality of ray source modules, each ray source module comprising at least one ray source point that emits ray beams; and a detector, which is used for detecting rays transmitted through the object during scanning and which comprises a plurality of detector groups.

公开(公告)号：EP4368977A1

公开(公告)日：2024-05-15

申请号：EP22836963.3

申请日：2022-07-06

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  HUANG, Qingping ,  DING, Hui ,  ZHOU, Yong ,  JIN, Xin ,  YAO, Liming

IPC分类号： G01N23/04

CPC分类号： G01V5/00 ,  G01N23/046 ,  G01N23/04

摘要： An inspection system, including: a carrying device (300); at least one ray source (100) and a detector assembly (200). The at least one ray source (100) is rotatable between a plurality of scanning positions around a rotation axis (AX) relative to the carrying device (300). The at least one ray source (100) and the detector assembly (200) may be lifted or lowered along the rotation axis (AX) relative to the carrying device (300). When the at least one ray source (100) is located at one of scanning positions relative to the carrying device (300), the at least one ray source (100) and the detector assembly (200) are lifted or lowered along the rotation axis (AX) relative to the carrying device (300) and the at least one ray source (100) emits X-rays. After the at least one ray source (100) and the detector assembly (200) are lifted or lowered a predetermined distance relative to the carrying device (300), the at least one ray source (100) rotates around the rotation axis (AX) relative to the carrying device (300) to another one of scanning positions. The inspection system further reconstructs a three-dimensional scanning image of the object (10) to be inspected based on detection data of the detector assembly (200).

公开(公告)号：EP4075124A1

公开(公告)日：2022-10-19

申请号：EP20899524.1

申请日：2020-09-15

申请人： Nuctech Company Limited

发明人： ZHOU, Yong ,  TENG, Yanwei ,  ZHANG, Li ,  HUANG, Qingping ,  FANG, Fei ,  DING, Hui

IPC分类号： G01N23/04

摘要： The present disclosure provides a device and a method for adjusting and positioning as well as a radiation scan imaging apparatus, and the device for adjusting and positioning is configured to adjust an orientation of a ray source assembly of the radiation scan imaging apparatus. The device for adjusting and positioning includes: a base (100) including a first component and a second component connected to each other, and is configured to support the ray source assembly (10), such that the ray source assembly is vertically positioned on the second component; a first adjustment mechanism (200) mounted to the first component of the base and the apparatus frame, and is configured to drive the ray source assembly to translate in a first direction by driving an entire base to move relative to the apparatus frame, so as to adjust a position of the ray source assembly; and a second adjustment mechanism (300) mounted to the second component of the base and the apparatus frame, and is configured to drive the ray source assembly to rotate within an angle range by driving the second component to move relative to the first component, so as to adjust a beam emitting direction of the ray source assembly.

公开(公告)号：EP2749873B1

公开(公告)日：2018-02-21

申请号：EP13840115.3

申请日：2013-07-15

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  HUANG, Qingping ,  SUN, Yunda ,  JIN, Xin ,  SHEN, Le ,  XING, Yuxiang ,  TANG, Hu ,  LI, Yuanjing ,  HONG, Mingzhi ,  LIANG, Jinning ,  REN, Qianlu ,  LI, Liang ,  DING, Hui ,  CHANG, Ming

IPC分类号： G01N23/04 ,  G01T1/20

CPC分类号： A61B6/482 ,  A61B6/0457 ,  A61B6/4241 ,  A61B6/542 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/643 ,  G01T1/242 ,  G01V5/0041 ,  H01L27/14601 ,  H01L27/14634 ,  H01L27/14658 ,  H01L27/14676 ,  H01L27/14806 ,  H01L27/14812

摘要： A detection device for a CT system comprises a low-energy detector assembly; and a high-energy detector assembly disposed under the low-energy detector assembly. The high-energy detector assembly comprises: a plurality of rows of high-energy detectors arranged at predetermined intervals. With the detection device, detectors and data acquisition units are greatly reduced. A high-resolution three-dimensional CT image is acquired while high-accuracy hazardous article alarm is achieved. The cost of manufacture of the system is greatly decreased while high system performance is ensured.

公开(公告)号：EP4369056A1

公开(公告)日：2024-05-15

申请号：EP22836955.9

申请日：2022-07-06

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  HUANG, Qingping ,  ZHOU, Yong ,  DING, Hui ,  JIN, Xin ,  JI, Chao

IPC分类号： G01V5/00

摘要： Provided are an inspection method, and an inspection system including: at least one ray source (100); a detector assembly (200) and a conveying device (300) for carrying a to-be-inspected object (10). At least one ray source (100) and the detector assembly (200) may move in a traveling direction relative to the conveying device (300), so that the to-be-inspected object (10) may enter an inspection region (30). When viewed along a central axis (AX) of the inspection region (30), at least one ray source (100) may translate between scanning positions, and a translation distance of at least one ray source (100) between two adjacent scanning positions is greater than a spacing between adjacent target spots (120) of each ray source (100). When at least one ray source (100) is located at one scanning position, at least one ray source (100) and the detector assembly (200) move in the traveling direction relative to the conveying device (300) and at least one ray source (100) emits X-rays. After moving a predetermined distance, at least one ray source (100) translates to another scanning position.

公开(公告)号：EP4365641A1

公开(公告)日：2024-05-08

申请号：EP22836961.7

申请日：2022-07-06

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： ZHANG, Li ,  CHEN, Zhiqiang ,  HUANG, Qingping ,  DING, Hui ,  ZHOU, Yong ,  JIN, Xin ,  YAO, Liming

IPC分类号： G01V5/00 ,  G01N23/046

CPC分类号： G01V5/00 ,  G01N23/046

摘要： An inspection system and method, the inspection system includes: a carrying device, at least one ray source (100) and a detector assembly (200). The at least one ray source (100) and the detector assembly (200) are lifted or lowered along a central axis of the carrying device (300) relative to the carrying device (300). When viewed along the central axis, the at least one ray source (100) is translatable between a plurality of scanning positions relative to the carrying device (300). When the at least one ray source (100) is at one of the scanning positions relative to the carrying device (300), the at least one ray source (100) and the detector assembly (200) are lifted or lowered relative to the carrying device (300) along the central axis, and the at least one ray source (100) emits X-rays; and when the at least one ray source (100) and the detector assembly (200) are lifted or lowered a predetermined distance relative to the carrying device (300), the at least one ray source (100) translates to another one of the scanning positions relative to the carrying device (300). The inspection system further reconstructs a three-dimensional scanning image of the object to be inspected based on detection data of the detector assembly (200).

公开(公告)号：EP4369057A1

公开(公告)日：2024-05-15

申请号：EP22836956.7

申请日：2022-07-06

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  HUANG, Qingping ,  ZHOU, Yong ,  DING, Hui ,  JIN, Xin ,  JI, Chao

IPC分类号： G01V5/00

摘要： An inspection system, including: a ray source (100) rotatable between at least two scanning positions around a rotation axis, where a rotation angle of the ray source (100) between two adjacent scanning positions is greater than an angle of adjacent target spots of the ray source (100) relative to the rotation axis; a detector assembly (200); and a conveying device (300) for carrying an object to be inspected (10). The ray source (100) and the detector assembly (200) are movable in a traveling direction relative to the conveying device (300) so that the object to be inspected (10) enters an inspection region. When the ray source (100) is located at one of the plurality of scanning positions, the ray source (100) and the detector assembly (200) move in the traveling direction relative to the conveying device (300) and the ray source (100) emits X-rays; and when the ray source (100) and the detector assembly (200) move a predetermined distance in the traveling direction relative to the conveying device (300), the ray source (100) rotates around the rotation axis to another one of the plurality of scanning positions.

公开(公告)号：EP4369055A1

公开(公告)日：2024-05-15

申请号：EP22836830.4

申请日：2022-07-01

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： CHEN, Zhiqiang ,  ZHANG, Li ,  HUANG, Qingping ,  JIN, Xin ,  DING, Hui ,  ZHOU, Yong ,  HU, Baoyuan ,  ZHAO, Zhenhua

IPC分类号： G01V5/00

摘要： A ray scanning device, comprising: a conveying apparatus (1), conveying an object to be detected (6) to pass through a scanning region of the ray scanning device; a ray source (3), comprising multiple ray source modules (31, 32, 33, 34), each ray source module (31, 32, 33, 34) comprising at least one ray source point emitting a ray beam, and the multiple ray source modules (31, 32, 33, 34) being arranged around the scanning region above the conveying device (1) and secured in a plane perpendicular to a conveying direction of the object to be detected (6); and a detector (4), used to detect rays transmitted through the object to be detected (6) during a scanning period, and comprising multiple detector sets (41, 42, 43, 44), end portions of the multiple detector sets (41, 42, 43, 44) being connected to each other so as to surround the scanning region, and the multiple detector sets (41, 42, 43, 44) being secured in a plane perpendicular to the conveying direction of the object to be detected (6), the detector (4) being located between the ray source (3) and the scanning region along a direction perpendicular to the conveying direction of the object to be detected (6), the ray source (3) and the detectors (4) being arranged to at least partially overlap along the conveying direction of the object to be detected (6), and the multiple ray source modules (31, 32, 33, 34) being detached and mounted independently of each other.