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    STATIC REAL-TIME CT IMAGING SYSTEM ADAPTABLE TO LARGE VISUAL FIELD REQUIREMENTSAND IMAGING METHOD
    3.
    发明公开
    STATIC REAL-TIME CT IMAGING SYSTEM ADAPTABLE TO LARGE VISUAL FIELD REQUIREMENTSAND IMAGING METHOD 审中-公开

    公开(公告)号：EP3586752A1

    公开(公告)日：2020-01-01

    申请号：EP18757948.7

    申请日：2018-02-27

    申请人： Nanovision Technology (Beijing) Co., Ltd.

    发明人： CAO, Hongguang ,  LI, Yunxiang ,  XING, Jinhui

    IPC分类号： A61B6/03

    摘要： The invention discloses a static real-time CT imaging system adaptable to large visual field requirements and an imaging method. The static real-time CT imaging system includes a multifocal annular X-ray source (21) and an annular photon detector (22), wherein, the multifocal annular X-ray source (21) is composed of a plurality of scanning X-ray sources arranged in a ring shape, and the annular photon detector (22) is composed of a plurality of photon counting detector modules arranged in a ring shape. Each scanning X-ray source emits a wide beam of X-rays in turn which passes through the object to be measured and arrives at the corresponding photon counting detector module, and non-inverse geometry imaging is used between the scanning X-ray source and the corresponding photon counting detector module. The photon counting detector modules operate in an overlapping manner and send corresponding exposure information to the data acquisition processing unit, and the image is reconstructed in real time and visualized in the data acquisition processing unit.

    ARC-SHAPED MULTI-FOCAL POINT FIXED ANODE GATE CONTROLLED RAY SOURCE
    4.
    发明公开
    ARC-SHAPED MULTI-FOCAL POINT FIXED ANODE GATE CONTROLLED RAY SOURCE 审中-公开

    公开(公告)号：EP3734636A1

    公开(公告)日：2020-11-04

    申请号：EP18895942.3

    申请日：2018-12-25

    申请人： Nanovision Technology (Beijing) Co., Ltd.

    发明人： XING, Jinhui ,  CUI, Zhili ,  GAO, Jian ,  CAO, Hongguang

    IPC分类号： H01J35/02 ,  H01J35/04

    摘要： Provided is an arc-shaped multi-focal point fixed anode gate controlled ray source, comprising an arc-shaped ray source housing, a ray tube bracket, a plurality of fixed anode reflected ray tubes and a plurality of gate controlled switches, wherein the plurality of fixed anode reflected ray tubes are fixed on the arc-shaped ray source housing by means of the ray tube bracket, and the focal points of the plurality of fixed anode reflected ray tubes are distributed on the same distribution circle; and the plurality of gate controlled switches are correspondingly connected to the plurality of fixed anode reflected ray tubes. By splicing the plurality of arc-shaped multi-focal point fixed anode gate controlled ray sources into an integral ring structure, the focal points of all the fixed anode reflected ray tubes therein can be distributed on the same distribution circle. The above-mentioned arc-shaped multi-focal point fixed anode gate controlled ray source is simple in structure and lower in cost, can generate a ray of sufficient strength, and has a sufficient number of focal points distributed in a circumferential direction.

    PHOTON COUNT-BASED RADIATION IMAGING SYSTEM, METHOD, AND APPARATUS
    5.
    发明公开
    PHOTON COUNT-BASED RADIATION IMAGING SYSTEM, METHOD, AND APPARATUS 审中-公开
    AUFPHOTONENZÄHLUNGBASIERTE STRAHLUNGSBILDGEBUNGSSYSTEM，VERFAHREN UND VORRICHTUNG

    公开(公告)号：EP3062093A1

    公开(公告)日：2016-08-31

    申请号：EP14855053.6

    申请日：2014-10-23

    申请人： Nanovision Technology (Beijing) Co., Ltd.

    发明人： LI, Yunxiang ,  ZHENG, Hailiang ,  CAO, Hongguang

    IPC分类号： G01N23/083 ,  G01T1/16 ,  A61B6/03

    CPC分类号： G01N23/083 ,  A61B6/03 ,  A61B6/4241 ,  A61B6/484 ,  A61B6/502 ,  A61B6/52 ,  G01N2223/419 ,  G01N2223/501 ,  G01T1/24

    摘要： A photon count-based radiation imaging system. The invention also relates to a method of implementing X-ray imaging in said system, and to key apparatus of said system. In the system, an x-ray source directs x-rays at a sample on a scanning platform. When the x-rays pass through said sample, photons carrying information about characteristics of the material at various spatial positions are produced. A photon count detector counts the photons on an imaging plane, obtains incident photon projection data and energy data, and transmits same to a 3D reconstruction system. The 3D reconstruction system reconstructs, on the basis of said projection data and energy data, the 3D structure and the matter composition inside the sample, then performs digital dyeing on the component parts of the sample, thereby differentiating the matter composition of the sample.

    摘要翻译： 基于光子计数的辐射成像系统。 本发明还涉及在所述系统中实现X射线成像的方法以及所述系统的关键装置。 在该系统中，x射线源在扫描平台上的样本处引导X射线。 当x射线通过所述样品时，产生携带关于材料在各种空间位置的特性的信息的光子。 光子计数检测器对成像平面上的光子进行计数，获得入射光子投影数据和能量数据，并将其传输到3D重建系统。 3D重建系统根据所述投影数据和能量数据重建样本内的3D结构和物质组成，然后对样品的组成部分进行数字染色，从而区分样品的物质组成。

    STATIC REAL-TIME CT IMAGING SYSTEM AND IMAGING CONTROL METHOD
    8.
    发明公开
    STATIC REAL-TIME CT IMAGING SYSTEM AND IMAGING CONTROL METHOD 审中-公开
    静态实时CT成像系统和成像控制方法

    公开(公告)号：EP3187112A1

    公开(公告)日：2017-07-05

    申请号：EP15835959.6

    申请日：2015-08-25

    申请人： Nanovision Technology (Beijing) Co., Ltd.

    发明人： CAO, Hongguang ,  LI, Yunxiang ,  CHANG, Tong ,  CUI, Zhili ,  ZHENG, Hailiang

    IPC分类号： A61B6/03 ,  G01N23/04 ,  G01T1/29

    CPC分类号： A61B6/032 ,  A61B6/03 ,  A61B6/0407 ,  A61B6/06 ,  A61B6/4007 ,  A61B6/4241 ,  A61B6/4266 ,  A61B6/4275 ,  A61B6/486 ,  A61B6/5282 ,  G01N23/04 ,  G01T1/29

    摘要： The present invention discloses a stationary real-time CT imaging system, comprising an annular photon counting detector, an annular scanning x-ray source, and a scanning sequence controller. Under the control of the scanning sequence controller, the annular scanning x-ray source emits a narrow-beam x-ray, and the x-ray penetrates the object being tested and projects onto the corresponding annular photon counting detector. The annular photon counting detector delivers the corresponding exposure information through the main scanning machine and the main controlling unit to a CT main machine and a human-machine interface unit. The image reconstruction is completed in the CT main machine and the human-machine interface unit. By electronically controlling and switching x-ray projection positions in order, the scanning speed is enhanced by tens of times, thereby obtaining dynamic 3D images. The use of the photon counting detector enables the access to absorption data and energy data, thereby allows for real-time data reconstruction. By using the narrow-beam x-ray, good quality images can be obtained using one tenth of the dosage of traditional CT imaging systems, thereby preventing patients from being over-radiated.

    摘要翻译： 本发明公开了一种静态实时CT成像系统，包括环形光子计数检测器，环形扫描X射线源和扫描顺序控制器。 在扫描序列控制器的控制下，环形扫描X射线源发射窄光束X射线，并且X射线穿透被测试物体并投射到相应的环形光子计数检测器上。 环形光子计数检测器通过主扫描机和主控制单元将相应的曝光信息传送给CT主机和人机界面单元。 图像重建在CT主机和人机界面单元完成。 通过依次电子控制和切换X射线投影位置，扫描速度提高数十倍，从而获得动态3D图像。 使用光子计数检测器可以访问吸收数据和能量数据，从而可以进行实时数据重建。 通过使用窄光束X射线，可以使用传统CT成像系统的十分之一的剂量获得高质量的图像，从而防止患者过度辐射。