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1.发明授权公开(公告)号：US10983243B2
公开(公告)日：2021-04-20
申请号：US16491891
申请日：2017-12-20
发明人： Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Wanlong Wu , Ming Ruan , Yingkang Jin , Guangwei Ding , Zongjun Shen , Jiajiang Zhao
IPC分类号： G01V5/00 , G21K1/10 , G01N23/203
摘要： A human body security inspection apparatus, a method of operating the same, and an associated filter device are disclosed. The human body security inspection apparatus includes a radiation beam exit configured for emitting a radiation beam; a beam guiding box configured for guiding the radiation beam; and a filter device configured between the radiation beam exit and the beam guiding box. The filter device includes a housing and a filter cage having a central axis. The filter cage is formed by arranging two or more pairs of filtering sheets, which are made of different materials and/or have different thicknesses, in an encircling way. The filter cage is rotatable about its central axis such that at least one pair of filtering sheets is capable of filtering the radiation beam to adjust an outputted dosage of the radiation beam of the human body security inspection apparatus.
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2.发明授权公开(公告)号：US10794923B2
公开(公告)日：2020-10-06
申请号：US15868878
申请日：2018-01-11
发明人： Qingjun Zhang , Yuanjing Li , Ziran Zhao , Qiufeng Ma , Ge Li , Biao Cao , Qi Mao
IPC分类号： G01N35/04 , G01N1/02 , G01N35/00 , G01N1/00 , G01N27/62 , G01N1/22 , H01J49/04 , H01J49/00 , G01N33/15 , G01N1/24 , G01N33/22
摘要： The present invention discloses a wiping-type sample sampling and feeding device, a card reading apparatus, and a gate machine apparatus. The wiping-type sample sampling and feeding device comprises a thermally desorbing portion for analyzing a substance; a wiping-type sampling portion for wiping the substance on a card or certificate and includes a first wheel, a second wheel and a wiping conveyor belt that travels between the first and second wheels along a first direction; and a card/certificate conveyor portion including a card carrying belt configured to convey a card or certificate along a second direction so that the card or certificate can contact with the wiping conveyor belt during conveyance of the card or certificate, thereby the wiping conveyor belt wipes a surface of the card or certificate, wherein the second direction is substantially perpendicular to the first direction.
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公开(公告)号：US10782211B2
公开(公告)日：2020-09-22
申请号：US15858829
申请日：2017-12-29
发明人： Qingjun Zhang , Yuanjing Li , Ziran Zhao , Ge Li , Biao Cao , Qiufeng Ma , Linxia Tan
摘要： A sampling device and an inspection apparatus are disclosed. In one aspect, an example gathering and sampling device includes a cylindrical outer housing and an inner housing disposed within the cylindrical outer housing, a cyclone chamber is formed between the cylindrical outer housing and the inner housing to generate a cyclone by injecting a gas flow into the cyclone chamber. The gathering and sampling device further includes an outer chamber body, and a plurality of gas injection orifices formed in the first inner housing end opening of the inner housing and configured to inject a gas towards a substantial center of a circular region defined by an end face of the first outer housing end opening of the cylindrical outer housing.
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公开(公告)号：US20190192090A1
公开(公告)日：2019-06-27
申请号：US16232072
申请日：2018-12-26
发明人： Liang Li , Zhiqiang Chen , Kejun Kang , Ziran Zhao , Li Zhang , Yuxiang Xing , Tiao Zhao , Jianmin Li , Bicheng Liu , Qian Yi
摘要： The present disclosure provides a decomposition method based on basis material combination. In the present disclosure, a scanned object is divided into a plurality of regions, the basis material combinations used in each of the divided regions are different each other, and the scanned object is re-divided according to the re-determined equivalent atomic number of its each point until the change on decomposition coefficient meets certain conditions. Thereby, a decomposition method based on dynamic basis material combinations is realized, which reduces a decomposition error caused by improper selection of the basis material combination and improves the accuracy of the decomposition and substance identification of the multi-energy CT.
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公开(公告)号：US10274636B2
公开(公告)日：2019-04-30
申请号：US14582076
申请日：2014-12-23
发明人： Huaping Tang , Zhiqiang Chen , Chuanxiang Tang , Huaibi Chen , Yuanjing Li , Ziran Zhao , Yaohong Liu , Shangmin Sun , Xinshui Yan , Zhanfeng Qin
摘要： The present invention may perform fluoroscopic imaging simultaneously on the subjects in at least two channels using only one electron accelerator, at least two sets of X-ray beams and at least two sets of detector systems, through the design of the electron accelerator, the shielding and collimating device, the at least two detector arrays and various mechanical composite structures. The X-ray fluoroscopic imaging system according to the present invention may be designed in specific forms of a stationary type, an assembled type, a track mobile type or vehicular mobile type, etc., and has advantages such as simple structure, low cost, strong function, good image quality and the like.
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公开(公告)号：US09771515B2
公开(公告)日：2017-09-26
申请号：US14827248
申请日：2015-08-14
发明人： Yanchun Wang , Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Jianping Chang , Shuqing Zhao , Wenjian Zhang , Yongqiang Wang
IPC分类号： C09K11/77 , C04B35/63 , C04B35/645 , G01T1/29
CPC分类号： C09K11/7771 , C04B35/547 , C04B35/62615 , C04B35/6303 , C04B35/645 , C04B35/6455 , C04B2235/3224 , C04B2235/445 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/656 , C04B2235/6565 , C04B2235/662 , G01T1/2935
摘要： The present disclosure is directed to a low cost sintering process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics, comprising uniaxial hot pressing primary sintering and hot isostatic pressing secondary sintering.
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公开(公告)号：US09651507B2
公开(公告)日：2017-05-16
申请号：US14572528
申请日：2014-12-16
发明人： Zhiqiang Chen , Ziran Zhao , Yuanjing Li , Wanlong Wu , Ming Ruan , Li Zhang , Yingkang Jin , Le Tang , Xianli Ding , Chenguang Zhu
IPC分类号： G01N23/203 , G01T1/167 , G01V5/00
CPC分类号： G01N23/203 , G01T1/167 , G01V5/0025 , G01V5/0091
摘要： A human body back-scattering inspection method and system are discloses. The method includes: obtaining a back-scattering scan image of a human body under inspection; distinguishing a body image from a background image in the back-scattering scan image; and calculating a feature parameter of the background image to determine whether radioactive substance is carried with the human body. With some embodiments of the present disclosure, it is possible to determine whether any radioactive substance is carried with a human body during back-scattering inspection of the human body. In further embodiments of the present disclosure, it is possible to approximately determine which part(s) of the human body carries the radioactive substance. This improves efficiency of inspection.
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公开(公告)号：US09615438B2
公开(公告)日：2017-04-04
申请号：US14758484
申请日：2013-11-21
发明人： Kejun Kang , Chuanxiang Tang , Ziran Zhao , Zhe Zhang
CPC分类号： H05G1/10 , A61B6/032 , A61B6/40 , A61B6/4064 , G01N23/046 , G01N2223/308 , G01N2223/419 , H01J35/06 , H01J35/08 , H01J2235/086
摘要： CT devices and methods thereof are disclosed. The CT device comprises a circular electron beam emission array including a plurality of electron beam emission units that are distributed uniformly along a circle, wherein each electron beam emission unit emits electron beams that are substantially parallel to an axis of the circular electron beam emission array in sequence under the control of a control signal; a circular reflection target which is disposed to be coaxial with the circular electron beam emission array, wherein the electron beams bombard the circular reflection target to generate X-rays that intersect the axis of the circular electron beam emission array; and a circular detector array which is disposed to be coaxial with the circular reflection target and configured to include a plurality of detection units which receive the X-rays after they have passed through an object to be detected.
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公开(公告)号：US09557436B2
公开(公告)日：2017-01-31
申请号：US14138447
申请日：2013-12-23
发明人： Zhiqiang Chen , Li Zhang , Ziran Zhao , Qiang Li , Jianping Gu , Qingping Huang
CPC分类号： G01V5/005 , G06K9/00214 , G06K2209/09 , G06T7/11 , G06T7/187 , G06T17/00 , G06T2207/10081 , G06T2207/30112
摘要： Disclosed are methods and apparatuses for creating a 3-Dimensional model for objects in an inspected luggage in a CT system. The method includes acquiring slice data of the luggage with the CT system; interpolating the slice data to generate 3D volume data of the luggage; performing unsupervised segmentation on the 3D volume data of the luggage to obtain a plurality of segmental regions; performing isosurface extraction on the plurality of segmental regions to obtain corresponding isosurfaces; and performing 3D surface segmentation on the isosurfaces to form a 3D model for the objects in the luggage. The above solutions can create a 3D model for objects in the inspected luggage in a relatively accurate manner, and thus provide better basis for subsequent shape feature extraction and security inspection, and reduce omission factor.
摘要翻译： 公开了用于在CT系统中检查的行李中的物体创建三维模型的方法和装置。 该方法包括采用CT系统获取行李的切片数据; 内插切片数据以生成行李的3D体积数据; 对行李的3D体积数据执行无监督分割以获得多个分段区域; 在多个分段区域进行等值面提取以获得相应的等值面; 并在等面上执行3D表面分割，以形成行李中物体的3D模型。 上述解决方案可以以相对准确的方式为被检查行李中的对象创建3D模型，从而为随后的形状特征提取和安全检查提供更好的依据，并减少遗漏因素。
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10.发明授权公开(公告)号：US09464997B2
公开(公告)日：2016-10-11
申请号：US14129669
申请日：2012-12-28
发明人： Shuwei Li , Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Yinong Liu , Qingjun Zhang , Weibin Zhu , Yi Wang , Shuqing Zhao , Wenjian Zhang
IPC分类号： G01N23/087 , G01T1/22
CPC分类号： G01N23/087 , G01N2223/402 , G01N2223/507 , G01T1/22
摘要： Methods and apparatuses for measuring an effective atomic number of an object are disclosed. The apparatus includes: a ray source configured to product a first X-ray beam having a first energy and a second X-ray beam having a second energy; a Cherenkov detector configured to receive the first X-ray beam and the second X-ray beam that pass through an object under detection, and to generate a first detection value and a second detection value; and a data processing device configured to obtain an effective atomic number of the object based on the first detection value and the second detection value. The Cherenkov detector can eliminate disturbance of X-rays below certain energy threshold with respect to the object identification, and thus accuracy can be improved for object identification.
摘要翻译： 公开了用于测量物体的有效原子序数的方法和装置。 该装置包括：射线源，被配置为产生具有第一能量的第一X射线束和具有第二能量的第二X射线束; 切伦科夫检测器，被配置为接收通过检测对象的第一X射线束和第二X射线束，并产生第一检测值和第二检测值; 以及数据处理装置，被配置为基于所述第一检测值和所述第二检测值来获得所述对象的有效原子序数。 切恩科夫检测器可以消除相对于物体识别的某些能量阈值以下的X射线干扰，从而可以提高对象识别的精度。
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