公开(公告)号：US20250035569A1

公开(公告)日：2025-01-30

申请号：US18715229

申请日：2022-12-26

Applicant: NUCTECH (BEIJING) COMPANY LIMITED ,  NUCTECH COMPANY LIMITED

Inventor： Yuanjing LI ,  Shangmin SUN ,  Chunguang ZONG ,  Tao SONG ,  Lei LIU ,  Yuan MA ,  Weifeng YU ,  Bicheng LIU

IPC: G01N23/10 ,  G01N23/04 ,  G01N23/083 ,  G01P3/64

Abstract: A security inspection device, a security inspection system and a security inspection method are provided, the device includes: a support frame defining an inspection channel; a first X-ray accelerator provided at a position of a top portion of the support frame and the position is offset from a centerline of the inspection channel, where the first X-ray accelerator is configured to radiate a first X-ray towards the inspection channel to inspect an object; a second X-ray accelerator configured to radiate a second X-ray to the inspection channel to inspect the object; and a detector apparatus, including: detector modules provided on the support frame and facing the first X-ray accelerator and the second X-ray accelerator, the detector modules receive the first X-ray and/or the second X-ray to form a transmission image of the object; the first X-ray, the second X-ray, and the detector modules are located in the same plane.

公开(公告)号：US20240411045A1

公开(公告)日：2024-12-12

申请号：US18716943

申请日：2022-12-16

Applicant: NUCTECH (BEIJING) COMPANY LIMITED ,  NUCTECH COMPANY LIMITED

Inventor： Shangmin SUN ,  Chunguang ZONG ,  Xuejing YANG ,  Xuping FAN ,  Quanwei SONG ,  Junping SHI ,  Hui MENG ,  Yang YANG ,  Weifeng YU ,  Ying LI ,  Dongyu WANG ,  Lei LIU ,  Bicheng LIU ,  Haojie CHI

IPC: G01V5/22 ,  G01N23/04

Abstract: A mobile radiation inspection apparatus includes a vehicle body, a traveling mechanism, a boom assembly, a first imaging device, and a second imaging device. The boom assembly is mounted on the vehicle body and is configured to switch between an inspection state and a transportation state. The first imaging device includes a first ray source and a first ray detector both mounted on the boom assembly. The first ray source is positioned at the top of an inspection channel. The second imaging device includes a second ray source and a second ray detector. The second ray detector cooperates with the second ray source to detect rays emitted by the second ray source, and the second ray source is positioned on a side surface of the inspection channel. The mobile radiation inspection apparatus implements multi-angle and multi-mode scanning.

公开(公告)号：US20190204469A1

公开(公告)日：2019-07-04

申请号：US16234632

申请日：2018-12-28

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Hao YU ,  Ying LI ,  Weizhen WANG ,  Quanwei SONG ,  Dongyu WANG ,  Haojie CHI ,  Jianmin LI ,  Yulan LI ,  Chunguang ZONG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Li ZHANG

IPC: G01V5/00 ,  G01N23/203

CPC classification number: G01V5/0025 ,  G01N23/203

Abstract: The present disclosure discloses a vehicle-mounted type back scattering inspection system. The vehicle-mounted type back scattering inspection system includes a carriage and a back scattering imaging device, the scanning range of the back scattering imaging device is variable. As the scanning range of the back scattering imaging device of the present disclosure is variably set, the inspection range of the back scattering imaging device can be expanded.

公开(公告)号：US20240319112A1

公开(公告)日：2024-09-26

申请号：US18575288

申请日：2022-07-01

Applicant: NUCTECH COMPANY LIMITED

Inventor： Bicheng LIU ,  Weizhen WANG ,  Chunguang ZONG ,  Shangmin SUN

IPC: G01N23/02

CPC classification number: G01N23/02 ,  G01N2223/1006 ,  G01N2223/206 ,  G01N2223/64

Abstract: The present disclosure relates to an inspection system and method. The inspection system includes: a ray source, configured to generate rays having different energies; a detector, configured to detect a signal when a ray emitted by the ray source acts on at least one cross section of an inspected object; and a processor, in communication connection with the ray source, configured to adjust an energy of the ray emitted by the ray source according to information representing a material parameter of at least one cross section of the inspected object. The embodiments of the present disclosure is capable of being applicable to radiation inspection of multiple types of inspected objects.

公开(公告)号：US20240085349A1

公开(公告)日：2024-03-14

申请号：US18259772

申请日：2021-12-15

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Zhiqiang CHEN ,  Lei LIU ,  Shangmin SUN ,  Chunguang ZONG ,  Yu HU ,  Yuan MA ,  Zheng JI

IPC: G01N23/04 ,  G01N23/10 ,  G01V5/00

CPC classification number: G01N23/04 ,  G01N23/10 ,  G01V5/0016

Abstract: The present disclosure provides a radiation inspection system, including a container respectively provided with an entrance and an exit on opposite side walls thereof; and a radiation scanning imaging device disposed in the container and having an inspection channel. The radiation scanning imaging device includes a ray source, the ray source includes ray generators, and ray generators are configured to emit ray beams at different angles, so that the radiation scanning imaging device performs radiation scanning inspection on an object to be inspected passing through the inspection channel from the entrance to the exit.

公开(公告)号：US20230288350A1

公开(公告)日：2023-09-14

申请号：US18013555

申请日：2021-07-02

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang CHEN ,  Yuanjing LI ,  Shangmin SUN ,  Chunguang ZONG ,  Yu HU ,  Huaping TANG ,  Bicheng LIU ,  Weizhen WANG

IPC: G01N23/203

CPC classification number: G01N23/203 ,  G01N2223/316 ,  G01N2223/3301 ,  G01N2223/501

Abstract: The present invention relates to a backscatter imaging device, a control method and an inspection system. The backscatter imaging device includes a ray source assembly configured to emit rays to a scanning area; a backscatter detector array including a plurality of backscattering detectors and configured to receive scattered photons when the rays are backscattered by an object within the scanning area; and a first collimator assembly including a plurality of first collimating channels corresponding to the plurality of backscatter detectors respectively, arranged on one side of the backscatter detector array adjacent to the scanning area, and configured to align the scattered photons when the rays are backscattered by the object, and the plurality of backscatter detectors receive scattered photons corresponding to a plurality of depths in the object respectively; and at least part of the plurality of first collimation channels have an adjustable collimation angle.

公开(公告)号：US20210364455A1

公开(公告)日：2021-11-25

申请号：US17255968

申请日：2020-01-03

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED ,  NUCTECH (BEIJING) COMPANY LIMITED

Inventor： Jianmin LI ,  Li ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Hao YU ,  Shangmin SUN ,  Bicheng LIU ,  Weizhen WANG ,  Dongyu WANG ,  Yuan MA ,  Yu HU ,  Chunguang ZONG

IPC: G01N23/20008 ,  G01N23/203

Abstract: The present disclosure provides a back scattering inspection system and a back scattering inspection method. The back scattering inspection system includes a frame and a back scattering inspection device. The rack includes a track arranged vertically or obliquely relative to the ground, and a space enclosed by the track forms an inspection channel; and the back scattering inspection device includes a back scattering ray emitting device and a back scattering detector, and the back scattering inspection device is movably disposed on the track for inspecting an inspected object passing through the inspection channel. The back scattering inspection system can perform back scattering inspection on a plurality of surfaces of the inspected object.

公开(公告)号：US20190204242A1

公开(公告)日：2019-07-04

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

CPC classification number: G01N23/046 ,  G01N2223/401 ,  G01V5/005

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 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：US20160135278A1

公开(公告)日：2016-05-12

申请号：US14900601

申请日：2013-11-19

Applicant: NUCTECH COMPANY LIMITED

Inventor： Shangmin SUN ,  Zhanfeng QIN ,  Sheng YAO ,  Weifeng YU ,  Liwei SONG ,  Chunguang ZONG ,  Jinning LIANG

IPC: H05H7/02 ,  G01V5/00 ,  H05H9/04

CPC classification number: H05H7/02 ,  G01V5/0016 ,  H05H9/048 ,  H05H2007/027

Abstract: The present invention provides a standing wave electron linear accelerator comprising a modulator and a magnetron for producing radio frequency microwaves; a plurality of accelerating tubes for accelerating electrons; a microwave transmission system for feeding the microwaves into the plurality of accelerating tubes; a plurality of electron guns for emitting electron beams into the plurality of accelerating tubes; a plurality of targets impinged by the electrons from a plurality of accelerating tubes to form continuous spectrums of X-rays; a plurality of shielding devices for shielding the continuous spectrums of X-rays generated by the targets; and a microwave distributor disposed adjacent to the end of the microwave transmission system, wherein the microwave distributor has a microwave inlet and a plurality of microwave outlets for distributing the microwaves in the microwave transmission system into the accelerating tubes.

Abstract translation: 本发明提供了一种驻波电子线性加速器，其包括用于产生射频微波的调制器和磁控管; 用于加速电子的多个加速管; 微波传输系统，用于将微波馈送到多个加速管中; 多个电子枪，用于将电子束发射到多个加速管中; 由多个加速管撞击的电子的多个靶，以形成X射线的连续光谱; 多个屏蔽装置，用于屏蔽目标产生的X射线的连续光谱; 以及布置在所述微波传输系统的端部附近的微波分配器，其中所述微波分配器具有微波入口和用于将所述微波传输系统中的微波分配到所述加速管中的多个微波出口。

公开(公告)号：US20240319114A1

公开(公告)日：2024-09-26

申请号：US18574756

申请日：2022-07-01

Applicant: NUCTECH COMPANY LIMITED

Inventor： Weizhen WANG ,  Bicheng LIU ,  Chunguang ZONG ,  Shangmin SUN

IPC: G01N23/04 ,  G01N23/083 ,  G01N23/10

CPC classification number: G01N23/04 ,  G01N23/083 ,  G01N23/10 ,  G01N2223/204 ,  G01N2223/50

Abstract: An inspection system includes: a radiation source; a detector configured to detect a signal when radiation emitted by the radiation source acts on an inspected object; and a processor in communication connection with the radiation source and configured to select a periodic radiation combination corresponding to a type of the object according to the type of the object, and cause the radiation source to emit radiation to the object in the selected periodic radiation combination during the time that the object is scanned, and the periodic radiation combination is a chronological arrangement of radiation pulses output by the radiation source in each scanning period, and radiation pulses have at least two different radiation energies. The system is capable of improving adaptability and simplifying control. An inspection method is also provided.