公开(公告)号：US20150048263A1

公开(公告)日：2015-02-19

申请号：US14459408

申请日：2014-08-14

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Kejun KANG ,  Yuanjing LI ,  Ying LI ,  Jianmin LI ,  Junli LI ,  Yanli DENG

IPC: G21F3/00 ,  G21F1/04 ,  G21F1/02

CPC classification number: G21F3/00 ,  G01V5/0016 ,  G21F1/023 ,  G21F1/042

Abstract: A radiation protection device is disclosed in the embodiment of the present invention. The radiation protection device is used for a system which is configured to perform safety inspection of a cargo or a vehicle by a ray. The radiation protection device comprising: at least one container, and a radiation protection part disposed within the container. The radiation protection material may comprise at least one of concrete, sandstone, and water, or the radiation protection part may comprise a steel-lead protection wall or a concrete protection wall. With the radiation protection device according to the embodiment of the present invention, after the container is transported to the site, it can be directly put in place to be capable of shielding rays without needing operation or with only simple operation. The amount of on-site work, construction time, and construction cost are low.

Abstract translation: 在本发明的实施例中公开了一种辐射防护装置。 辐射防护装置用于被配置为通过射线执行货物或车辆的安全检查的系统。 辐射防护装置包括：至少一个容器和设置在容器内的辐射防护部分。 辐射防护材料可以包括混凝土，砂岩和水中的至少一种，或者辐射防护部分可以包括钢 - 铅保护壁或混凝土保护壁。 根据本发明的实施方式的放射线防护装置，在将容器运送到现场后，可以将其直接放置在能够屏蔽射线的地方，而无需操作或操作简单。 现场工作量，施工时间和施工成本低。

公开(公告)号：US20160178795A1

公开(公告)日：2016-06-23

申请号：US14975387

申请日：2015-12-18

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Yanli DENG ,  Qitian MIAO ,  Junli LI ,  Guoping ZHU ,  Weiqiang GUAN ,  Yuxin HU ,  Shenjin MING ,  Ming HUANG

IPC: G01V13/00

CPC classification number: G01V13/00 ,  G01N23/083 ,  G01N2223/303

Abstract: The disclosure provides a method for measuring X-ray energy of an accelerator in an inspection system. the method comprises: building a database comprising correspondence between half-value layer (HVL) and energy under a predetermined condition; measuring HVL for X-rays of the accelerator in the inspection system on line under the same predetermined condition; and comparing the measured HVL with the HVLs in the database comprising correspondence between HVL and energy to determine the X-ray energy of the accelerator. The method is applicable to a large-scale container/vehicle inspection system for measurement of X-ray energy/HVL of the accelerator so as to acquire source state of the inspection system in real time.

Abstract translation: 本公开提供了一种用于测量检查系统中的加速器的X射线能量的方法。 该方法包括：构建包含半值层（HVL）与预定条件下的能量之间的对应关系的数据库; 在相同的预定条件下测量在检查系统中的加速器的X射线的HVL; 并且将所测量的HVL与数据库中的HVL进行比较，其中包括HVL和能量之间的对应关系，以确定加速器的X射线能量。 该方法适用于用于测量加速器的X射线能量/ HVL的大型集装箱/车辆检查系统，以便实时获取检查系统的源状态。

公开(公告)号：US20230213666A1

公开(公告)日：2023-07-06

申请号：US18146101

申请日：2022-12-23

Applicant: NUCTECH COMPANY LIMITED

Inventor： Jianmin LI ,  Guoping ZHU ,  Ming RUAN ,  Kun ZHAO ,  Yanli DENG ,  Junli LI ,  Qitian MIAO

IPC: G01T1/20

CPC classification number: G01T1/2002 ,  G01T1/2006

Abstract: Provided is a device of detecting a ray dose adaptable for coupling with a terminal, including: a housing, a scintillator and a light shielding layer. The housing has an accommodating space and a window, the accommodating space is in communication with the window; the scintillator is configured to receive a ray and convert a received ray into a visible light, the scintillator is located in the accommodating space, the scintillator covers the window, an outer surface of the scintillator includes a first outer surface and a second outer surface, and the first outer surface is adapted to a camera of the terminal; and the light shielding layer is configured to shield a visible light in an external environment from illuminating on the scintillator, the light shielding layer is arranged on the second outer surface of the scintillator.

公开(公告)号：US20240027371A1

公开(公告)日：2024-01-25

申请号：US18266507

申请日：2021-11-25

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhi ZENG ,  Jianmin LI ,  Ming RUAN ,  Yanli DENG ,  Guoping ZHU ,  Junli LI

IPC: G01N23/10 ,  G01N23/20025

CPC classification number: G01N23/10 ,  G01N23/20025 ,  G01N2223/643 ,  G01N2223/3307

Abstract: Embodiments of the present application provide a detection method. The detection method includes: acquiring information of at least two first positions through which a particle passes before penetrating an object under detection, and information of at least two second positions through which the particle passes after penetrating the object under detection, wherein the object under detection is a metal product; reconstructing, based on the information of the at least two first positions, a first track before the particle penetrates the object under detection; reconstructing, based on the information of the at least two second positions, a second track after the particle penetrates the object under detection; processing the first track and the second track to obtain feature information of the object under detection; and determining, according to the feature information and preset feature information of an object of a target type, a detection result of the object under detection.