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1.发明授权公开(公告)号：US10379252B2
公开(公告)日：2019-08-13
申请号：US15217787
申请日：2016-07-22
发明人： Zhiqiang Chen , Yuanjing Li , Li Zhang , Ziran Zhao , Yaohong Liu , Juan Zheng , Jianping Gu , Chunguang Zong
IPC分类号： G01V5/00 , G01N23/04 , G01N23/046 , G01N23/06 , G01N23/083 , G01N23/087 , G01N23/10 , G01V5/12
摘要： Disclosed is a method and device for estimating weight of an object to be inspected in an inspection system. An effective atomic number and a high-energy gray value of the dual-energy corresponding to each pixel of the object to be inspected are obtained by a dual-energy radiation scanning. A mass-thickness value for a corresponding pixel is obtained from a pre-created mass-thickness attenuation curve by utilizing the effective atomic numbers and the high-energy gray value of the dual-energy for respective pixels. Weight information for at least a part of the object to be inspected is calculated by multiplying the mass-thickness value by the area of the pixel. Such a method may accurately calculate the weight of the object to be inspected and save the cost for a conventional weighing hardware.
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公开(公告)号：US10339673B2
公开(公告)日：2019-07-02
申请号：US15129455
申请日：2015-12-23
发明人： Liang Li , Zhiqiang Chen , Kejun Kang , Li Zhang , Ziran Zhao , Yuxiang Xing , Yongshun Xiao , Jianping Gu , Juan Zheng
摘要： Disclosed is a dual-energy ray imaging method and system. The method comprises: calculating the mass thicknesses of the materials in the overlapped area of two materials by using a calibrated surface fitting method, and then decomposing a pair of original high-energy and low-energy data for this pixel into two high-low-energy data sets corresponding to the two materials, and finally calculating and acquiring the composition result of different materials for each pixel. The disclosure is especially advantageous in that the problem of error recognition of materials due to the two overlapped materials can be eliminated and the stratified imaging of multiple materials can be achieved, thereby improving the accuracy of the substance recognition and reducing the rate of false positive and false negative which is very important to the applications in the field of security check and anti-smuggling.
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公开(公告)号：US09772427B2
公开(公告)日：2017-09-26
申请号：US14892640
申请日：2014-01-17
发明人： Kejun Kang , Jianmin Li , Ying Li , Yuanjing Li , Wei Yin , Juan Zheng , Lei Zeng
IPC分类号： G01V5/00
CPC分类号： G01V5/0041 , G01V5/0025
摘要： The disclosure provides a multi-power multi-dosage accelerator. The multi-power multi-dosage accelerator comprises an electron gun configured to provide a first voltage of the electron gun and a second voltage of the electron gun, and an accelerating tube configured to generate a first X-ray having a first dosage and first power according to the first voltage of the electron gun and generate a second X-ray having a second dosage and second power according to the second voltage of the electron gun, wherein the first dosage is a dosage which can be accepted by human bodies and is much less than the second dosage, the first X-ray is used for inspecting a first area where a person is located, and the second X-ray is used for inspecting a second area where goods are located.
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公开(公告)号：US10285252B2
公开(公告)日：2019-05-07
申请号：US15278043
申请日：2016-09-28
发明人： Yu Hu , Shangmin Sun , Juan Zheng , Bicheng Liu
IPC分类号： G21K1/04 , H05G1/30 , G01V5/00 , G01N23/083 , G21K1/10
摘要： Provided is a dual-energy ray scanning system, which includes a ray source for alternately emitting a high energy ray and a low energy ray; a filter includes a low energy filtering element and a low energy transmitting element; a control device for synchronously controlling the ray source and the filter, and the low energy filtering element includes a plurality of filter sheets, the low energy transmitting element comprises a plurality of transmission sheets, the filter sheets and the transmission sheets are arranged alternately and surround the ray source to form a cavity, and the ray source is located on a central axis of the cavity.
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公开(公告)号：US20170094762A1
公开(公告)日：2017-03-30
申请号：US15278043
申请日：2016-09-28
发明人： Yu Hu , Shangmin Sun , Juan Zheng , Bicheng Liu
CPC分类号： H05G1/30 , G01N23/083 , G01N2223/313 , G01N2223/423 , G01V5/0041 , G21K1/043 , G21K1/10
摘要： The present invention discloses a dual-energy ray scanning system, scanning method and inspecting system and relates to the radiation scanning, imaging and detecting field. The dual-energy ray scanning system comprises a ray source for alternately emitting a high energy ray and a low energy ray; a filter comprising a low energy filtering element and a low energy transmitting element; and a control device for controlling said ray source and said filter to make said low energy filtering element of said filter be aligned with a beam exit direction of said ray source when said ray source emits a high energy ray so as to filter low energy portion of said high energy ray out and transmit high energy portion of said high energy ray out, and for controlling said ray source and said filter to make said low energy transmitting element of said filter be aligned with said beam exit direction of said ray source when said ray source emits the low energy ray so as to transmit said low energy ray out. This not only can improve transmissivity of the high energy ray, but also does not lose the spatial wire resolution of the low energy ray, and this guarantees the index of transmissivity and the index of spatial wire resolution at the same time, such that the dual-energy ray can sufficiently utilize a difference in its penetration characteristics to recognize the object to be inspected, thereby reaching the objective of security inspection.
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