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31. 发明授权

US09448188B2 Vehicular radiation inspection system 有权
标题翻译：车载辐射检查系统
公开(公告)号：US09448188B2
公开(公告)日：2016-09-20
申请号：US14412516
申请日：2013-07-02
申请人： Nuctech Company Limited , Tsinghua University
发明人： Jianmin Li , Yinong Liu , Yulan Li , Chunguang Zong , Hui Gong , Qingping Huang , Weifeng Yu
IPC分类号： G01N23/10 , G01N23/04 , G01V5/00
CPC分类号： G01N23/10 , G01N23/04 , G01N2223/301 , G01N2223/308 , G01V5/0016 , G01V5/0066
摘要： The present invention discloses a vehicular radiation inspection system comprising a mobile vehicle body, a detection arm, a radiation source and a detector. The vehicular radiation inspection system further comprises a following mechanism separated from the detection arm. The following mechanism contains radiation protection material, and the following mechanism follows the detection arm to move in a non-contact manner during inspection of the inspected object, so as to prevent radiation leakage. In the present invention, it does not need to infuse radiation protection material having a high density, such as lead, into the detection arm. Therefore, it can effectively decrease the weight of the detection arm, and it does not need to provide a balance counterweight on the mobile vehicle body on which the detection arm is carried, thereby effectively solving the problem that the vehicular radiation inspection system has an excessively large mass. Meanwhile, in the present invention, the moving process of the following mechanism is accurately controlled, so as to prevent the following mechanism from hitting the detection arm.
摘要翻译：本发明公开了一种包括移动车身，检测臂，辐射源和检测器的车辆辐射检查系统。车辆辐射检查系统还包括与检测臂分离的跟随机构。以下机构包含辐射防护材料，并且在检查被检查物体的检查期间，跟随检测臂的机构以非接触的方式移动，以防止辐射泄漏。在本发明中，不需要将诸如铅的高密度的辐射防护材料注入到检测臂中。因此，能够有效地降低检测臂的重量，并且不需要在携带检测臂的移动体上提供平衡配重，从而有效地解决了车辆用辐射检查系统过度的问题大量。同时，在本发明中，精确地控制以下机构的移动过程，以防止以下机构撞击检测臂。

32. 发明申请

US20160046860A1 PROCESS FOR THE PREPARATION OF GADOLINIUM OXYSULFIDE SCINTILLATION CERAMICS 有权
标题翻译：制备氧化IDE IDE IDE ATION ATION ATION ATION ATION ICS ICS ICS ICS ICS ICS ICS
公开(公告)号：US20160046860A1
公开(公告)日：2016-02-18
申请号：US14827248
申请日：2015-08-14
申请人： Tsinghua University , Nuctech Company Limited
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
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.
摘要翻译：本公开涉及用于制备具有通式Gd 2 O 2 S（称为GOS，闪烁陶瓷）的钆硫氧化物的低成本烧结方法，其包括单轴热压一次烧结和热等静压二次烧结。

33. 发明授权

US09261610B2 High purity germanium detector 有权
标题翻译：高纯锗探测器
公开(公告)号：US09261610B2
公开(公告)日：2016-02-16
申请号：US14574848
申请日：2014-12-18
申请人： Nuctech Company Limited
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Yulan Li , Qiufeng Ma , Ziran Zhao , Yinong Liu , Jianping Chang
IPC分类号： G01T1/24 , G01T1/36
CPC分类号： G01T1/244 , G01T1/24 , G01T1/241 , G01T1/366
摘要： The present disclosure provides a High-Purity Germanium (HPGe) detector, comprising: a HPGe single crystal having an intrinsic region exposed surface; a first electrode and a second electrode connected to a first contact electrode and a second contact electrode of the HPGe single crystal respectively; and a conductive guard ring arranged in the intrinsic region exposed surface around the first electrode to separate the intrinsic region exposed surface into an inner region and an outer region. A leakage current derived from the intrinsic region exposed surface of the HPGe detector can be separated from the current of the HPGe detector by the conductive guard ring provided in the surface, thereby suppressing the interference of the surface leakage current.
摘要翻译：本公开提供了一种高纯锗（HPGe）检测器，包括：具有固有区域暴露表面的HPGe单晶; 分别连接到HPGe单晶的第一接触电极和第二接触电极的第一电极和第二电极; 以及布置在第一电极周围的本征区域暴露表面中的导电保护环，以将本征区域暴露表面分离成内部区域和外部区域。从HPGe检测器的本征区域暴露表面导出的泄漏电流可以通过设置在表面中的导电保护环与HPGe检测器的电流分离，从而抑制表面泄漏电流的干扰。

34. 发明申请

US20150323664A1 MILLIMETER WAVE THREE DIMENSIONAL HOLOGRAPHIC SCAN IMAGING APPARATUS AND METHOD FOR INSPECTING A HUMAN BODY OR AN ARTICLE 审中-公开
标题翻译：三维波三维全息扫描成像装置和检查人体或文章的方法
公开(公告)号：US20150323664A1
公开(公告)日：2015-11-12
申请号：US14451297
申请日：2014-08-04
申请人： Nuctech Company Limited
发明人： Wanlong Wu , Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Zongjun Shen , Yinong Liu , Bin Sang , Wenguo Liu
IPC分类号： G01S13/89 , G01S13/02
CPC分类号： G01S13/89 , G01S13/02 , G01V8/005
摘要： A millimeter wave three dimensional holographic scan imaging apparatus and a method for inspecting a human body or an article are disclosed. In one aspect, the apparatus includes a first and second millimeter wave transceiver module. The apparatus also includes a guide rail device for each millimeter wave transceiver module. Each guide rail is connected to its respective transceiver module in slidable form. A driver drives each millimeter wave transceiver module to move along its guide rail device. Each millimeter wave transceiver module performs plane scans on the human body or article being inspected. A data processing device generates a millimeter wave holographic image from the plane scans.
摘要翻译：公开了一种毫米波三维全息扫描成像装置和用于检查人体或制品的方法。在一个方面，该装置包括第一和第二毫米波收发器模块。该装置还包括用于每个毫米波收发器模块的导轨装置。每个导轨以可滑动的形式连接到其相应的收发器模块。驱动器驱动每个毫米波收发器模块沿其导轨装置移动。每毫米波收发器模块对人体或正在检查的物品执行平面扫描。数据处理装置从平面扫描生成毫米波全息图像。

35. 发明授权

US09052284B2 Asymmetric field ion mobility spectrometer 有权
标题翻译：不对称场离子迁移谱仪
公开(公告)号：US09052284B2
公开(公告)日：2015-06-09
申请号：US14128894
申请日：2012-12-28
申请人： Nuctech Company Limited
发明人： Shiping Cao , Qingjun Zhang , Zhiqiang Chen , Ziran Zhao , Yuanjing Li , Yinong Liu , Shuqiang Dong
IPC分类号： H01J49/26 , G01N27/62
CPC分类号： G01N27/624 , G01N27/622
摘要： The present invention discloses an asymmetric field ion mobility spectrometer. It comprises an ionization source, for generating ions; an electrode plate; a plurality of electrode filaments, arranged in opposite to and spaced apart from the electrode plate by an analysis gap, wherein a high voltage of electrical field is applied between the electrode plate and the electrode filaments to form an ion migration area, the electrode filaments used to collect the ions that do not pass through the ion migration area; and a collection electrode, disposed at a rear end of the ion migration area, and collecting the ions that have passed through the ion migration area. The present asymmetric field ion mobility spectrometer is capable of improving accuracy of identifying peak positions of the ions, reducing scanning time of DC voltage and types of compensation voltage, thereby increasing ion detection efficiency.
摘要翻译：本发明公开了一种不对称场离子迁移谱仪。它包括用于产生离子的电离源; 电极板; 多个电极丝，通过分析间隙与电极板相对并间隔布置，其中在电极板和电极丝之间施加高电压的电场以形成离子迁移区域，所用的电极丝收集不通过离子迁移区的离子; 以及收集电极，设置在离子迁移区域的后端，并且收集已经通过离子迁移区域的离子。本不对称场离子淌度光谱仪能够提高识别离子峰位置的精度，减少直流电压的扫描时间和补偿电压的种类，从而提高离子检测效率。

36. 发明申请

US20140319635A1 SEMICONDUCTOR DETECTOR 有权
标题翻译：半导体检测器
公开(公告)号：US20140319635A1
公开(公告)日：2014-10-30
申请号：US14152332
申请日：2014-01-10
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Yuanjing Li , Lan Zhang , Yulan Li , Yinong Liu , Jianqiang Fu , Hao Jiang , Zhi Deng , Tao Xue , Wei Zhang , Jun Li
IPC分类号： G01T1/36 , G01T3/08
CPC分类号： G01T1/366 , G01T1/241 , G01T3/08
摘要： The invention provides a semiconductor detector, and the semiconductor detector comprises a semiconductor crystal, a cathode, an anode and at least one ladder electrode; the semiconductor crystal comprises a top surface, a bottom surface and at least one side; the cathode, the anode and the ladder electrode are conductive thin films deposited on a surface of the semiconductor crystal; the cathode is disposed on the bottom surface of the semiconductor crystal, the anode is disposed on the top surface of the semiconductor crystal, the ladder electrode is disposed on the at least one side of the semiconductor crystal; and the ladder electrode comprises a plurality of sub-electrodes. As compared to the prior art, the semiconductor detector can improve the energy resolution.
摘要翻译：本发明提供一种半导体检测器，该半导体检测器包括半导体晶体，阴极，阳极和至少一个梯形电极; 半导体晶体包括顶表面，底表面和至少一个侧面; 阴极，阳极和梯形电极是沉积在半导体晶体表面上的导电薄膜; 阴极设置在半导体晶体的底表面上，阳极设置在半导体晶体的顶表面上，梯形电极设置在半导体晶体的至少一个侧面上; 并且梯形电极包括多个子电极。与现有技术相比，半导体检测器可以提高能量分辨率。

37. 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.

38. 发明授权

US11346807B2 Pulsed sampling-based ion mobility spectrometer and sniffer 有权
公开(公告)号：US11346807B2
公开(公告)日：2022-05-31
申请号：US16626767
申请日：2019-06-12
申请人： NUCTECH COMPANY LIMITED
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Jianmin Li , Yinong Liu , Yaohong Liu , Lili Yan , Biao Cao , Weiping Zhu , Ge Li , Qiufeng Ma , Qi Mao , Nan Bai
IPC分类号： H01J49/00 , G01N27/622 , G01N1/22
摘要： There are provided an ion mobility spectrometer and a sniffer. The ion mobility spectrometer includes: an ion migration tube; a sampling gas path having a sampling device configured to temporarily store a sample gas collected by a sampling head in a sampling pipe; a sample introduction gas path having two ends in communication with the gas inlet and outlet of the ion migration tube respectively, and configured to introduce a carrier gas within the ion migration tube into the sampling pipe and to carry a sample gas temporarily stored in the sampling pipe into the ion migration tube; and a valve assembly configured to only allow gas to flow from the sampling device to the sampling pipe in a sampling state, and to only allow gas to flow from the ion migration tube through the sampling pipe back to the ion migration tube in a sample introduction state.

39. 发明授权

US10984565B2 Image processing method using convolutional neural network, image processing device and storage medium 有权
公开(公告)号：US10984565B2
公开(公告)日：2021-04-20
申请号：US16235882
申请日：2018-12-28
申请人： Tsinghua University , NUCTECH COMPANY LIMITED
发明人： Yuxiang Xing , Kaichao Liang , Le Shen , Li Zhang , Hongkai Yang , Kejun Kang , Zhiqiang Chen , Jianmin Li , Yinong Liu
IPC分类号： G06T11/00 , G06N3/08
摘要： An image processing method, comprising: acquiring, by a CT scanning system, projection data of an object; and processing, by using a convolutional neural network, the projection data, to acquire an estimated image of the object. The convolutional neural network comprises: a projection domain network for processing input projection data to obtain estimated projection data; an analytical reconstruction network layer for performing analytical reconstruction to obtain a reconstructed image; an image domain network for processing the reconstructed image to obtain an estimated image, a projection layer for performing a projection operation by using a system projection matrix of the CT scanning system, to obtain a projection result of the estimated image; and a statistical model layer for determining consistency among the input projection data, the estimated projection data, and the projection result of the estimated image based on a statistical model.

40. 发明授权

US10768575B2 Imaging devices and imaging methods by millimeter wave 3D holographic scanning 有权
公开(公告)号：US10768575B2
公开(公告)日：2020-09-08
申请号：US15562627
申请日：2016-08-19
申请人： Nuctech Company Limited
发明人： Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Wanlong Wu , Zongjun Shen , Li Zhang , Yinong Liu , Yingkang Jin , Wentao Yu
IPC分类号： G03H1/26 , G01S13/89 , G01N22/00 , G01V8/00 , G01S17/89 , G03H1/04
摘要： An imaging device and an imaging method by millimeter wave 3D holographic scanning are disclosed. In an embodiment, the millimeter wave 3D holographic scanning imaging device may include: a conveying apparatus configured to convey an object located thereon in a first direction; and at least one millimeter wave transceiving module arranged beside the conveying apparatus, each configured to be enabled to scan the object when the conveying apparatus conveys the object through the respective millimeter wave transceiving module, wherein each millimeter wave transceiving module is arranged to have its longitudinal direction extend in a direction intersecting the first direction, and includes a millimeter wave transceiving antenna array for transceiving millimeter wave signals.

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