公开(公告)号：US20150025841A1

公开(公告)日：2015-01-22

申请号：US14367824

申请日：2012-12-20

Applicant: NUCTECH COMPANY LIMITED

Inventor： Qiang Wang ,  Kun Zhao ,  Ming Ruan

IPC: G01V5/00 ,  G01T1/00

CPC classification number: G01V5/0008 ,  G01T1/00 ,  G01T1/169 ,  G01T7/00

Abstract: A method for patrol inspecting and locating a radioactive substance, comprising: providing a background radioactive intensity value of environment; collecting radioactive intensity values from a inspecting region by a detector at a plurality of sampling points on a patrol inspection route; calculating a radioactive intensity distribution in the inspecting region on basis of the collected radioactive intensity values and the background radioactive intensity value; and determining a position of the radioactive substance on basis of the radioactive intensity distribution. Furthermore, a device for patrol inspecting and locating a radioactive substance comprises: two or more detectors configured to collect radioactive intensity values from a inspecting region around a patrol inspection route, at each of a plurality of sampling points on the patrol inspection route; and a movable carrier configured to carry the detector and to move along the patrol inspection is route to pass by the sampling points. The method and device can obtain the position and the radioactive intensity distribution of the radioactive substance within the inspecting region on basis of the multiple-point observation on the patrol inspection route.

Abstract translation: 一种巡视检验放射性物质的方法，包括：提供背景放射性强度值的环境; 在检查路线上的多个采样点处由检测器从检查区域收集放射性强度值; 根据收集的放射性强度值和背景放射性强度值计算检测区域的放射性强度分布; 并根据放射性强度分布确定放射性物质的位置。 此外，用于巡视检查和定位放射性物质的装置包括：两个或更多个检测器，被配置为在巡视检查路线上的多个采样点的每一个处从巡视检查路线周围的检查区域收集放射强度值; 并且构造成携带检测器并沿巡视检查移动的可移动承载件是通过采样点的路线。 该方法和装置可以根据巡视检查路线的多点观察，得到检查区内放射性物质的位置和放射性强度分布。

公开(公告)号：US20140361187A1

公开(公告)日：2014-12-11

申请号：US14366899

申请日：2012-12-20

Applicant: NUCTECH COMPANY LIMITED

Inventor： Kun Zhao ,  Ming Ruan

IPC: G01T3/06 ,  G01T1/17 ,  G01T1/16

CPC classification number: G01T3/06 ,  G01T1/16 ,  G01T1/17 ,  G01T1/20

Abstract: The present invention discloses a detector. The detector includes a detector crystal, configured to detect incident rays therein; a plurality of moderator layers, configured to moderate neutrons entering the moderator layer; and a plurality of converter layers, configured to react with said moderated neutrons. The moderator layers and the converter layers are overlapped with each other, and the moderator layers and the converter layers are located outside the detector crystal.

Abstract translation: 本发明公开了一种检测器。 检测器包括检测器晶体，其被配置为检测其中的入射光线; 多个调节剂层，被配置用于调节进入调节剂层的中子; 以及多个转换器层，被配置为与所述调节中子反应。 调节器层和转换器层彼此重叠，并且调节剂层和转换器层位于检测器晶体的外部。

公开(公告)号：US10107903B2

公开(公告)日：2018-10-23

申请号：US14958245

申请日：2015-12-03

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Lin Yang ,  Yingkang Jin ,  Ming Ruan ,  Chengcong Xu

IPC: G01S13/88 ,  G01V8/00 ,  G01S13/89 ,  G01V3/12

Abstract: The present disclosure provides a human body security inspection apparatus, comprising: a base on which an inspected human stands; a millimeter-wave transceiver configured to perform a millimeter-wave scanning operation on the body of the inspected human standing on the base so as to detect whether or not the inspected human carries contraband and output a first signal; and a metal sensing detector arranged within the base and configured to detect whether or not there is a metallic foreign object in underside of a shoe of the inspected human and output a second signal.

公开(公告)号：US09295441B2

公开(公告)日：2016-03-29

申请号：US14138476

申请日：2013-12-23

Applicant: Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Yuanjing Li ,  Wanlong Wu ,  Yingkang Jin ,  Li Zhang ,  Le Tang ,  Chenguang Zhu ,  Xianli Ding ,  Xiuwei Chen ,  Ming Ruan ,  Chengcong Xu ,  Xilei Luo

IPC: A61B6/00 ,  G01T1/167 ,  G01V5/00

CPC classification number: A61B6/483 ,  G01T1/167 ,  G01V5/0025

Abstract: Human body back-scattering inspection systems and methods are disclosed. In the invention, X-rays modulated by the flying-spot forming unit having spirally distributed flying-spots have a distribution having alternating peaks and valleys on the irradiated surface. In this way, scanning starting times can be precisely controlled to cause two devices to have scanning starting times that are different by a half of a cycle. That is, the beams outputted from one device are at maximum when the beams outputted from the other device are at minimum. In other words, even if the ray source of one device emits rays, it will not significantly affect imaging result of the other device. In such way, the two devices may emit rays and perform scanning at the same time, and thus the total scanning time is reduced.

Abstract translation: 公开了人体背散射检查系统和方法。 在本发明中，由具有螺旋状分布的飞点的飞点形成单元调制的X射线具有在照射面上具有交替的峰和谷的分布。 以这种方式，可以精确地控制扫描开始时间，以使两个装置的扫描开始时间不同于周期的一半。 也就是说，当从另一个装置输出的光束为最小时，从一个装置输出的光束是最大的。 换句话说，即使一个设备的射线源发射光线，也不会显着影响其他设备的成像结果。 以这种方式，两个装置可以发射光线并同时进行扫描，因此总扫描时间减少。

公开(公告)号：US20160003966A1

公开(公告)日：2016-01-07

申请号：US14790947

申请日：2015-07-02

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Le Tang ,  Ming Ruan ,  Xiao Tang ,  Guangwei Ding

IPC: G01V5/00 ,  G01N23/203

CPC classification number: G01V5/0025 ,  G01N23/203

Abstract: The present disclosure provides a mobile back scattering imaging security inspection apparatus, comprising: a back scattering scanner (2), a detector (3), a controller (4), and a movable stage (1) configured to carry the back scattering scanner, the detector and the controller and being movable with respect to the object to be inspected; wherein the back scattering scanner is a distributed X-ray source comprising a plurality of target points (201), each of which is able to emit the ray beam individually, and wherein the back scattering scanner, the detector and the controller perform an imaging security inspection operation on the object to be inspected during moving along with the movable stage with respect to the object.

Abstract translation: 本公开提供了一种移动后向散射成像安全检查装置，包括：后散射扫描器（2），检测器（3），控制器（4）和可移动台（1），其配置成携带背散射扫描器， 检测器和控制器，并且可相对于被检查物体移动; 其中所述背散射扫描器是包括多个目标点（201）的分布式X射线源，每个所述目标点（201）能够单独地发射所述射线束，并且其中所述后向散射扫描器，所述检测器和所述控制器执行成像安全性 在与可动台相对于物体一起移动时，要检查对象的检查操作。