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81. 发明授权

US09287433B2 Radiation detector 有权
公开(公告)号：US09287433B2
公开(公告)日：2016-03-15
申请号：US14164702
申请日：2014-01-27
申请人： Tsinghua University , Nuctech Company Limited
发明人： Lan Zhang , Yulan Li , Yuanjing Li , Yinong Liu , Jianqiang Fu , Hao Jiang , Wei Zhang , Yanqing Liu , Jun Li
IPC分类号： H01L31/115 , G01T1/24
CPC分类号： H01L31/115 , G01T1/241
摘要： A radiation detector is provided. The radiation detection comprises a semiconductor crystal for detecting radiation. The semiconductor crystal comprises a top surface, a bottom surface, and at least one side surface. At least one anode is arranged on at least one of the top surface, the bottom surface, and the at least one side surface. At least one cathode is arranged on at least another one of the top surface, the bottom surface, and the at least one side surface. The at least one anode each has a stripe shape, the at least one cathode each has a planar or curved shape, and the at least one cathode and the at least one anode extend in parallel with respect to each other to a length substantially equal to that of the anode. Such an electrode structure can improve energy resolution and detection efficiency of the radiation detector effectively.

82. 发明申请

US20160052718A1 VEHICLE DRAGGING SYSTEM AND VEHICLE INSPECTION SYSTEM 有权
标题翻译：车辆牵引系统和车辆检测系统
公开(公告)号：US20160052718A1
公开(公告)日：2016-02-25
申请号：US14582087
申请日：2014-12-23
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Jianmin LI , Mingliang Li , Yuanjing Li , Yulan Li , Ying Li , Tao Song
IPC分类号： B65G15/24 , G01N23/02 , G01M17/00 , B65G15/58
CPC分类号： B65G15/24 , B65G15/58 , B65G19/02 , B65G47/52 , B65G2203/0233 , B65G2203/0291 , B65G2203/041 , G01M17/00 , G01N23/02 , G01V5/0008
摘要： The present invention discloses A vehicle dragging system, comprising a first dragging means and a second dragging means, which are sequentially arranged along a vehicle dragging direction, wherein in the vehicle dragging direction, the first dragging means is arranged at the upstream of the second dragging means, and a separating section is arranged between the first dragging means and the second dragging means, so that the first dragging means is separated from the second dragging means by a preset distance in the vehicle dragging direction, wherein the first dragging means comprises a first supporting plate, a first elongated traction element and a first pushing element connected with the first elongated traction element, and the first pushing element is adapted to move around the first supporting plate for pushing wheels to move along the first supporting plate, in order to drive a vehicle to advance; the second dragging means comprises a second supporting plate, a second elongated traction element and a second pushing element connected with the second elongated traction element, and the second pushing element is adapted to move along the second supporting plate for pushing wheels to move along the second supporting plate, in order to drive the vehicle to advance.
摘要翻译：本发明公开了一种车辆牵引系统，包括沿着车辆牵引方向依次布置的第一牵引装置和第二牵引装置，其中，在车辆拖动方向上，第一牵引装置布置在第二拖动的上游并且在第一牵引装置和第二牵引装置之间布置有分离部分，使得第一牵引装置在第二拖动装置中沿车辆拖动方向与预定距离分开，其中第一牵引装置包括第一牵引装置支撑板，第一细长牵引元件和与第一细长牵引元件连接的第一推动元件，并且第一推动元件适于围绕第一支撑板移动以推动车轮沿着第一支撑板移动，以便驱动推进车辆第二拖动装置包括第二支撑板，第二细长牵引元件和与第二细长牵引元件连接的第二推动元件，并且第二推动元件适于沿着第二支撑板移动以推动轮沿第二支撑板移动支撑板，以驱动车辆前进。

83. 发明申请

US20140299758A1 CORONA DISCHARGING DEVICE AND ION MIGRATION SPECTROMETER HAVING SAME 有权
标题翻译： CORONA放电装置和具有相同功能的离子迁移光谱仪
公开(公告)号：US20140299758A1
公开(公告)日：2014-10-09
申请号：US14005820
申请日：2012-11-29
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhiqiang Chen , Qingjun Zhang , Shuqiang Dong , Yuanjing Li , Ziran Zhao , Yinong Liu , Yan Zheng
IPC分类号： H01T19/04 , H01J49/26
CPC分类号： H01T19/04 , G01N27/622 , G01N27/68 , H01J27/022 , H01J49/168 , H01J49/26
摘要： The present invention provides a corona discharge device, comprising a first electrode including: a first substantially cylindrical inner chamber portion and a second substantially conical inner chamber portion in communication with the first inner chamber portion, wherein the second inner chamber portion has a cross sectional area that gradually enlarges in a direction away from the first inner chamber portion. The present invention also provides an ion mobility spectrometer comprising: an ionization region; and the corona discharge device disposed in the ionization region. With the above construction and structure, the ion mobility spectrometer of the present invention has the advantages that extraction of ions is facilitated and a life time of the corona electrode is lengthened. In addition, the focusing and storing electrode is used to effectively shield interference of a corona discharge pulse, and to push and focus sample ions. A designed voltage control solution is used to achieve mobility differentiating of ions, while a corona pulse is shielded to prevent variation in an ion quantity due to the corona pulse, thereby achieving an effect of stabilizing mobility spectrum lines.
摘要翻译：本发明提供一种电晕放电装置，包括：第一电极，包括：与第一内室部分连通的第一基本上圆柱形的内室部分和第二基本上圆锥形的内室部分，其中第二内室部分具有横截面积其在远离第一内室部分的方向上逐渐扩大。本发明还提供了一种离子迁移谱仪，包括：电离区域; 以及设置在电离区域中的电晕放电装置。通过上述结构和结构，本发明的离子迁移谱仪具有促进离子提取和电晕电极寿命延长的优点。此外，聚焦和存储电极用于有效屏蔽电晕放电脉冲的干扰，并推动和聚焦样品离子。使用设计的电压控制解决方案来实现离子的移动性差异，同时屏蔽电晕脉冲以防止由于电晕脉冲引起的离子量的变化，从而实现稳定迁移率谱线的效果。

84. 发明申请

US20140185874A1 THREE-DIMENSIONAL DATA PROCESSING AND RECOGNIZING METHOD 有权
标题翻译：三维数据处理和识别方法
公开(公告)号：US20140185874A1
公开(公告)日：2014-07-03
申请号：US14136426
申请日：2013-12-20
申请人： Tsinghua University , Nuctech Company Limited
发明人： Mingliang Li , Zhiqiang Chen , Yuanjing Li , Li Zhang
IPC分类号： G06K9/00
CPC分类号： G06K9/00201 , G06K9/00771 , G06K2209/09
摘要： A three-dimensional data processing and recognizing method including scanning and re-constructing objects to be detected so as to obtain three-dimensional data for recognition of the objects to be detected; extracting data matching to features from the three-dimensional data, so that the extracted data constitutes an interested target; with respect to the data matching to features, merging and classifying adjacent data points as one group, to form an image of the merged interested target; recognizing a cross section of the interested target; cutting the interested targets by a perpendicular plane which passes through a central point of the cross section and is perpendicular to it, in order to obtain a graph; and recognizing shape of the interested targets based on a property of the graph.
摘要翻译：一种三维数据处理和识别方法，包括扫描和重新构造待检测对象，以获得用于识别待检测对象的三维数据; 从三维数据提取与特征匹配的数据，使提取的数据构成感兴趣的目标; 对于与特征匹配的数据，将相邻数据点合并和分类为一组，以形成合并的目标的图像; 认识到有兴趣的目标的横截面; 通过穿过横截面的中心点并垂直于其的垂直平面切割感兴趣的目标，以获得图形; 并基于图的属性识别感兴趣的目标的形状。

85. 发明申请

US20140185754A1 GOODS INSPECTION APPARATUS USING DISTRIBUTED X-RAY SOURCE 有权
标题翻译：使用分布式X射线源的商品检验装置
公开(公告)号：US20140185754A1
公开(公告)日：2014-07-03
申请号：US14134845
申请日：2013-12-19
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Huaping Tang , Yuanjing Li , Ziran Zhao , Yaohong Liu , Zhanfeng Qin , Jinyu Zhang , Hu Tang
IPC分类号： G01V5/00
CPC分类号： G01V5/0016 , G01N23/046 , G01V5/005
摘要： This invention relates to an X-ray goods inspection apparatus, and in particular to a goods inspection apparatus using distributed X-ray source.
摘要翻译：本发明涉及一种X射线物品检查装置，特别涉及一种使用分布式X射线源的货物检验装置。

86. 发明申请

US20140010346A1 METHOD AND DEVICE FOR INSPECTION OF LIQUID ARTICLES 审中-公开
标题翻译：检测液体物品的方法和装置
公开(公告)号：US20140010346A1
公开(公告)日：2014-01-09
申请号：US13946498
申请日：2013-07-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhiqiang Chen , Li Zhang , Xuewu Wang , Haifeng Hu , Hongxin Wu , Yuanjing Li , Yinong Liu , Ziran Zhao , Yuxiang Xing , Hu Tang , Yumin Yi , Jinyu Zhang
IPC分类号： G01N23/10
CPC分类号： G01N23/10 , A61B6/027 , G01N23/046 , G01N2001/022 , G01N2223/419 , G01N2223/423 , G01N2223/637 , G01N2223/639 , G01V5/00
摘要： Disclosed are a method and a device for security-inspection of liquid articles with dual-energy CT imaging. The method comprises the steps of obtaining one or more CT images including physical attributes of liquid article to be inspected by CT scanning and a dual-energy reconstruction method; acquiring the physical attributes of each liquid article from the CT image; and determining whether there are drugs concealed in the inspected liquid article based on the difference between the acquired physical attributes and reference physical attributes of the inspected liquid article. The CT scanning can be implemented by a normal CT scanning technique, or a spiral CT scanning technique. In the normal CT scanning technique, the scan position can be preset, or set by the operator with a DR image, or set by automatic analysis of the DR image.
摘要翻译：公开了一种用于双能CT成像的液体物品的安全检查方法和装置。该方法包括以下步骤：通过CT扫描获得包括待检查的液体物品的物理属性的一个或多个CT图像和双能量重建方法; 从CT图像获取每个液体物品的物理属性; 并且基于被检查的液体制品的所获取的物理属性和参考物理属性之间的差异来确定在被检查的液体制品中是否存在隐藏的药物。 CT扫描可以通过正常的CT扫描技术或螺旋CT扫描技术来实现。在正常的CT扫描技术中，扫描位置可以由操作员预先设置，或者通过DR图像设置，或者通过DR图像的自动分析设置。

87. 发明申请

US20130341519A1 BORON-CONTAINING GAS FILM FAST-NEUTRON DETECTOR 有权
标题翻译：含硼气体膜快速中性探测器
公开(公告)号：US20130341519A1
公开(公告)日：2013-12-26
申请号：US13851989
申请日：2013-03-28
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Yuanjing Li , Yigang Yang , Qinjian Zhang , Yi Liu , Yang Tai
IPC分类号： G01T3/06
CPC分类号： G01T3/06
摘要： The present invention provides a boron-containing gas film fast-neutron detector. The fast-neutron detector comprises a package piece having a hollow cavity; a plastic scintillator array provided in the cavity and comprising a plurality of plastic scintillator units, a gap existing between adjacent plastic scintillator units; and a boron-containing gas filled into and gas-tightly sealed in the hollow cavity, the boron-containing gas forming a boron-containing gas film in the gap between the adjacent plastic scintillator units. The fast-neutron detector of the present invention completely does not require use of scarce and expensive 3He gas, nor needs a complicated boron film coating process, improves credibility of signal coincidence, and is adapted for measurement of environment background neutrons and extensively adapted for detection of radioactive substance at sites such as customs ports, harbors and the like.
摘要翻译：本发明提供一种含硼气体薄膜快中子检测器。快中子检测器包括具有中空腔的封装件; 设置在空腔中的塑料闪烁体阵列，包括多个塑料闪烁体单元，相邻的塑料闪烁体单元之间存在间隙; 以及填充并气密地密封在中空腔中的含硼气体，所述含硼气体在相邻的塑料闪烁体单元之间的间隙中形成含硼气体膜。本发明的快中子检测器完全不需要使用稀少且昂贵的3He气体，也不需要复杂的硼膜涂覆工艺，改善信号一致性的可信度，并适用于测量环境背景中子并广泛适用于检测在海关，港口等场所的放射性物质。

88. 发明授权

US11476102B2 Real-time calibration device, real-time calibration method and detection apparatus 有权
公开(公告)号：US11476102B2
公开(公告)日：2022-10-18
申请号：US16947998
申请日：2020-08-27
申请人： Nuctech Company Limited , Tsinghua University
发明人： Qingjun Zhang , Zhiqiang Chen , Yuanjing Li , Jianmin Li , Yinong Liu , Yaohong Liu , Guangqin Li , Weiping Zhu , Ge Li , Qiufeng Ma , Biao Cao
IPC分类号： H01J49/00 , G01N27/622 , H01J49/04
摘要： Embodiments of the present disclosure provide a real-time calibration device, a real-time calibration method and a detection apparatus. The real-time calibration device is in fluid communication with a sample injection pipeline of the apparatus to be calibrated. The real-time calibration device is configured to release a trace amount of calibration agent molecules during a sample injection of the apparatus to be calibrated, so that the trace amount of calibration agent molecules and a sample entering the apparatus to be calibrated are mixed and together enter the apparatus to be calibrated, and information of the sample and the calibration agent is detected by the apparatus to be calibrated, thereby performing a calibration.

89. 发明授权

US11327198B2 CT inspection system and CT imaging method for a reciprocating swinging process of a radioactive source device and a detection device around an object at non-uniform speed to collect effective detection data 有权
公开(公告)号：US11327198B2
公开(公告)日：2022-05-10
申请号：US16234621
申请日：2018-12-28
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Xiulin Ni , Jianmin Li , Haitian Tan , Yulan Li , Weifeng Yu , Yuanjing Li , Hejun Zhou , Zhiqiang Chen , Chunguang Zong , Li Zhang
IPC分类号： G01N23/046 , G01V5/00 , A61B6/03 , A61B6/00 , G01N23/18
摘要： The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a nonuniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.

90. 发明授权

US11320407B2 Gas chromatograph-ion mobility spectrometry combined equipment 有权
公开(公告)号：US11320407B2
公开(公告)日：2022-05-03
申请号：US16714799
申请日：2019-12-16
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Weiping Zhu , Yaohong Liu , Qiufeng Ma , Ge Li , Biao Cao , Lili Yan
IPC分类号： G01N30/44 , G01N30/72
摘要： The present disclosure discloses a gas chromatograph-ion mobility spectrometry combined equipment, including: a gas chromatograph device for pre-separating a to-be-detected sample to form a pre-separated sample; an ion mobility spectrometry device in fluid communication with an outlet of the gas chromatograph device for detecting the pre-separated sample; and a gas circulating device in fluid communication with a discharged gas interface of the ion mobility spectrometry device for processing a discharged gas from the ion mobility spectrometry device, wherein the gas circulating device is further in gas communication with the gas chromatograph device for conveying a part of the discharged gas to the gas chromatograph device to serve as a carrier gas, which drives the to-be-detected sample to enter the gas chromatograph device. The miniaturization and the portability of the gas chromatograph-ion mobility spectrometry combined equipment are improved.

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