公开(公告)号：US20180179658A1

公开(公告)日：2018-06-28

申请号：US15843666

申请日：2017-12-15

Applicant: Nuctech Company Limited

Inventor： Yongqiang WANG ,  Qingjun ZHANG ,  Yuanjing LI ,  Ziran ZHAO ,  Jianping CHANG ,  Yanchun WANG ,  Lifeng SUN ,  Nan BAI ,  Xingliang ZHAI

IPC: C25D13/02 ,  C25D13/20 ,  C09D5/44

CPC classification number: C25D13/02 ,  C08K3/14 ,  C08K2003/387 ,  C09D5/4488 ,  C09D5/4492 ,  C09D7/61 ,  C25D13/12 ,  C25D13/20 ,  C25D13/22 ,  G01T3/00

Abstract: the present invention provides a method for forming a sensitive film for neutron detection, wherein the sensitive film is formed by electrophoresis coating, the liquid used for electrophoresis coating includes neutron sensitive material, electrophoresis paint and deionized water, and the neutron sensitive material is 10B single substance, 10B compound or mixture containing 10B. The sensitive film for neutron detection has the high detection efficiency because of the high content of 10B. The sensitive film for neutron detection has the uniform and stable film thickness, and excellent consistency. The production efficiency and the cost of the sensitive film are improved.

公开(公告)号：US20170329039A1

公开(公告)日：2017-11-16

申请号：US15411359

申请日：2017-01-20

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Kejun KANG ,  Jianping CHENG ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Junli LI ,  Xuewu WANG ,  Zhi ZENG ,  Qingjun ZHANG ,  Jianping GU ,  Xi YI ,  Bicheng LIU ,  Guangming XU ,  Yongqiang WANG

IPC: G01V5/00

CPC classification number: G01V5/0075 ,  G01V5/0016 ,  G01V5/0091

Abstract: The present disclosure relates to a method, a device and a system for inspecting a moving object based on cosmic rays, pertaining to the field of radiation imaging and safety inspection techniques. The method includes: detecting whether a speed of the inspected moving object is within a preset range; recording a motion trajectory of the moving object with a monitoring device; acquiring information about charged particles in the cosmic rays with a position sensitive detector, the information about charged particles including track information of the charged particles; determining the moving object by matching positions of the motion trajectory and the track information; reconstructing the track of the charged particles according to the information about the charged particles; and recognizing the material inside the moving object based on the track reconstruction.

公开(公告)号：US20190302281A1

公开(公告)日：2019-10-03

申请号：US16365910

申请日：2019-03-27

Applicant: Nuctech Company Limited

Inventor： Shuwei LI ,  Qingjun ZHANG ,  Xiang ZOU ,  Bozhen ZHAO ,  Junxiao WANG ,  Weibin ZHU ,  Yongqiang WANG ,  Wenjian ZHANG

IPC: G01T1/20 ,  G01T1/22 ,  G01T1/24 ,  G01N23/04 ,  G01B15/02

Abstract: The present disclosure provides a dual-energy detection apparatus and method. The dual-energy detection apparatus includes an X-ray source configured to send a first X-ray beam to an object to be measured; a scintillation detector configured to work in an integration mode, and receive a second X-ray beam penetrating through the object to be measured to generate a first electrical signal; a Cherenkov detector configured to be located behind the scintillation detector, work in a counting mode, and receive a third X-ray beam penetrating through the scintillation detector to generate a second electrical signal; and a processor configured to output image, thickness and material information of the object to be measured according to the first electrical signal and the second electrical signal. The dual-energy detection method provided by the present disclosure may acquire an image of the object to be measured that is clearer and contains more information.

公开(公告)号：US20160187500A1

公开(公告)日：2016-06-30

申请号：US14983411

申请日：2015-12-29

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Yanchun WANG ,  Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Jianping CHANG ,  Wenjian ZHANG ,  Shuqing ZHAO ,  Xiang ZOU ,  Yongqiang WANG

IPC: G01T1/202

CPC classification number: G01T1/2018

Abstract: A method for processing a ceramic scintillator array, characterized in that, comprising the following steps: (a) forming, in a first direction, a predetermined number of straight first-direction through-cuts which are parallel to each other and spaced from each other on a scintillator substrate by using laser; (b) adequately filling the first-direction through-cuts with an adhesive and solidifying the adhesive; (c) forming, in a second direction. a predetermined number of second direction through-cuts which are parallel to each other at a predetermined interval on the scintillator substrate by using laser, wherein the second direction is perpendicular to the first direction; and (d) adequately filling the second direction through-cuts with the adhesive and solidifying the adhesive bond.

Abstract translation: 一种用于处理陶瓷闪烁体阵列的方法，其特征在于包括以下步骤：（a）在第一方向上形成预定数量的彼此平行并且彼此间隔开的直的第一方向贯穿切口 通过使用激光在闪烁体衬底上; （b）用粘合剂充分填充第一方向贯穿切割并固化粘合剂; （c）在第二方向上形成。 通过使用激光在闪烁体基板上以预定间隔彼此平行的预定数量的第二方向贯穿切割，其中所述第二方向垂直于所述第一方向; 和（d）用粘合剂充分填充第二方向贯穿切割并固化粘合剂粘结。

公开(公告)号：US20190004185A1

公开(公告)日：2019-01-03

申请号：US16026106

申请日：2018-07-03

Applicant: Nuctech Company Limited

Inventor： Yongqiang WANG ,  Qingjun ZHANG ,  Yuanjing LI ,  Ziran ZHAO ,  Lifeng SUN ,  Nan BAI ,  Xingliang ZHAI

IPC: G01T1/185 ,  G01T3/00

CPC classification number: G01T1/185 ,  G01T3/008 ,  G01V5/0025

Abstract: A large-area X-ray gas detector includes a housing having an inner cavity and a ray entrance communicated with the inner cavity, a thin entrance window and a signal collection module. The inner cavity is filled with a working gas which is a non-electronegativity gas sensitive to the X-ray. The entrance window is hermetically connected to the ray entrance such that the X-ray enters into the inner cavity. The signal collection module comprises an anode wire electrode layer and a cathode electrode layer arranged parallel with each other in the inner cavity, in which the anode wire electrode layer has an anode wire for accessing to a high voltage, and the cathode electrode layer is grounded. The anode wire electrode layer collects electrons generated by the working gas under an action of the X-ray.

公开(公告)号：US20170329038A1

公开(公告)日：2017-11-16

申请号：US15411348

申请日：2017-01-20

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Kejun KANG ,  Zhiqiang CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Junli LI ,  Xuewu WANG ,  Yaohong LIU ,  Zhi ZENG ,  Jianping GU ,  Song LIANG ,  Bicheng LIU ,  Guangming XU ,  Yongqiang WANG

IPC: G01V5/00

CPC classification number: G01V5/0016 ,  G01N2223/205 ,  G01T1/167 ,  G01T5/002 ,  G01T5/02 ,  G01V5/0025 ,  G01V5/0075 ,  G01V5/0091 ,  G06K9/6267

Abstract: The present application relates to a method, apparatus and system for inspecting an object based on a cosmic ray, pertaining to the technical field of radiometric imaging and safety inspection. The method includes: recording a movement trajectory of an inspected object by using a monitoring device; acquiring information of charged particles in the cosmic ray by using a position-sensitive detector, the information of charged particles comprising trajectory information of the charged particles; performing position coincidence for the movement trajectory and the trajectory information to determine the object; performing trajectory remodeling for the charged particles according to the information of charged particles; and identifying a material inside the moving object according to the trajectory remodeling. According to the present disclosure, pedestrians who are walking and moving are inspected by using the cosmic ray, and nuclear materials, drugs and explosive materials and the like carried by human bodies may be detected.