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    ION MOBILITY SPECTROMETER SYSTEM
    41.
    发明申请
    ION MOBILITY SPECTROMETER SYSTEM 有权
    离子移动光谱仪系统

    公开(公告)号：US20150115152A1

    公开(公告)日：2015-04-30

    申请号：US14525058

    申请日：2014-10-27

    Applicant: Nuctech Company Limited

    Inventor： Qingjun Zhang ,  Shiping Cao ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Jianpang Chang ,  Yan Zheng ,  Yanchun Wang ,  Shaoji Mao

    IPC: G01N27/62 ,  H01J49/04 ,  G01N30/72

    CPC classification number: G01N27/622 ,  G01N30/7206 ,  H01J49/0422 ,  H01J49/0468

    Abstract: An ion mobility spectrometer system is disclosed. In one aspect, the system includes a gas chromatograph, first and second ion mobility spectrometers, and a sample feed device that feeds a sample from the gas chromatograph to the first and second ion mobility spectrometers. The sample feed device includes an inner chamber, first and second sample outlets for outputting the sample from the gas chromatograph to the first and second ion mobility spectrometers, respectively, and a gas inlet for inputting a gas into the sample feed device. The system detects and identifies molecules at improved resolution and enhanced molecule information. The system detects positive and negative ions, interrelates positive-mode and negative-mode spectrums, and separates substances.

    Abstract translation: 公开了一种离子迁移谱仪系统。 在一个方面，该系统包括气相色谱仪，第一和第二离子迁移谱仪，以及将样品从气相色谱仪供给到第一和第二离子迁移谱仪的样品进料装置。 样品进料装置包括内室，用于将样品从气相色谱仪分别输出到第一和第二离子迁移谱仪的第一和第二样品出口，以及用于将气体输入到样品进料装置中的气体入口。 该系统以改进的分辨率和增强的分子信息检测和识别分子。 系统检测正离子和负离子，相互作用正模式和负模式光谱，并分离物质。

    Corona discharge device and ion mobility spectrometer having corona discharge device
    42.
    发明授权
    Corona discharge device and ion mobility spectrometer having corona discharge device 有权
    具有电晕放电装置的电晕放电装置和离子迁移谱仪

    公开(公告)号：US08921771B2

    公开(公告)日：2014-12-30

    申请号：US14005820

    申请日：2012-11-29

    Applicant: Nuctech Company Limited ,  Tsinghua University

    Inventor： Zhiqiang Chen ,  Qingjun Zhang ,  Shuqiang Dong ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Yan Zheng

    IPC: B01D59/44 ,  H01J49/00 ,  H01T19/04 ,  H01J49/26

    CPC classification number: H01T19/04 ,  G01N27/622 ,  G01N27/68 ,  H01J27/022 ,  H01J49/168 ,  H01J49/26

    Abstract: 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.

    Abstract translation: 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。

    METHODS AND APPARATUSES FOR MEASURING EFFECTIVE ATOMIC NUMBER OF AN OBJECT
    43.
    发明申请
    METHODS AND APPARATUSES FOR MEASURING EFFECTIVE ATOMIC NUMBER OF AN OBJECT 有权
    用于测量物体的有效原子数的方法和装置

    公开(公告)号：US20140314201A1

    公开(公告)日：2014-10-23

    申请号：US14129669

    申请日：2012-12-28

    Applicant: Tsinghua University ,  Nuctech Company Limited

    Inventor： Shuwei LI ,  Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Qingjun Zhang ,  Weibin Zhu ,  Yi Wang ,  Shuqing Zhao ,  Wenjian Zhang

    IPC: G01N23/087 ,  G01T1/22

    CPC classification number: G01N23/087 ,  G01N2223/402 ,  G01N2223/507 ,  G01T1/22

    Abstract: 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.

    Abstract translation: 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。

    Afterglow detection device and afterglow detection method
    48.
    发明授权
    Afterglow detection device and afterglow detection method 有权

    公开(公告)号：US10775320B2

    公开(公告)日：2020-09-15

    申请号：US16403555

    申请日：2019-05-05

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Shuwei Li ,  Wenjian Zhang ,  Xiang Zou ,  Bozhen Zhao ,  Qingjun Zhang ,  Huishao He ,  Yongqiang Wang ,  Yanchun Wang

    IPC: A61B6/00 ,  G01N23/04 ,  G01T1/20

    Abstract: The present disclosure discloses an afterglow detection device and an afterglow detection method. The afterglow detection device comprises: an X-ray tube for emitting an X-ray beam; a first reading circuit for receiving a first detected signal from a to-be-detected detector to form and output a first measurement signal according to the first detected signal, the to-be-detected detector being connected to the first reading circuit and disposed on a beam-out side of the X-ray tube to receive radiation of the X-ray beam and outputting the first detected signal to the first reading circuit at the time of detection; a residual ray detector disposed on a beam-out side of the X-ray tube; a second reading circuit connected to the residual ray detector for receiving a second detected signal from the residual ray detector to form and output a second measurement signal according to the second detected signal.

    Large-area X-ray gas detector
    50.
    发明授权
    Large-area X-ray gas detector 有权

    公开(公告)号：US10473795B2

    公开(公告)日：2019-11-12

    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 ,  G01V5/00

    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.

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