DETECTORS IN HASH ARRANGEMENT FOR X/GAMMA RAY CONTAINER/VEHICLE INSPECTION DEVICE
    1.
    发明公开
    DETECTORS IN HASH ARRANGEMENT FOR X/GAMMA RAY CONTAINER/VEHICLE INSPECTION DEVICE 审中-公开
    探测器在哈希安排用于设备用于测试X-RAY /γ辐射CONTAINER

    公开(公告)号:EP3029452A4

    公开(公告)日:2017-03-29

    申请号:EP14831858

    申请日:2014-07-22

    IPC分类号: G01N23/04 G01V5/00

    CPC分类号: G01V5/0016 G01V5/0075

    摘要: A ray detection system for an X/Gamma ray container/vehicle inspection device, comprising detector modules, is provided. The detector modules are arranged on a detector arm (34), and each detector module comprises one or more detector units (35) arranged in a scattered configuration, wherein each the detector unit in the detector module is installed so as to align with a beam center of a ray source (31), thereby significantly reducing the dimension of a detector frame while improving the imaging quality.

    摘要翻译: 对X /γ射线集装箱/车辆检查装置A射线检测系统,包括检测器模块,被设置。 检测器模块被布置在检测器臂(34),并且每个检测器模块包括以分散的构型排列的一个或多个检测器单元(35),检测器模块中的每个worin检测器单元被安装成与光束对准 一个X射线源(31),从而显着地降低检测器框架的尺寸,同时提高成像质量的中心。

    CT DEVICE AND METHOD THEREOF
    3.
    发明公开
    CT DEVICE AND METHOD THEREOF 审中-公开
    CT装置及其方法

    公开(公告)号:EP2940459A4

    公开(公告)日:2016-08-31

    申请号:EP13869644

    申请日:2013-10-31

    IPC分类号: G01N23/04 A61B6/03

    摘要: CT Devices and methods thereof are disclosed. The CT device comprises an electron beam generation unit, a circular reflection target (9) and a circular detector array. The electron beam generation unit comprises an electron gun (7), a deflection scanning unit and a restrictor (16), wherein the electron gun (7) generates electron beams, the deflection scanning unit deflects the electron beams with a deflection direction varying as time so as to implement a circular scanning, and the restrictor (16) has a plurality of circularly distributed holes, and wherein when the electron beams scan along the circularly distributed holes, a plurality of electron beams that are distributed circularly are output. The circular reflection target (9) is disposed to be coaxial with the circularly distributed electron beams, wherein the circularly distributed electron beams bombard the circular reflection target (9) to generate X-rays that intersect the axis of the circularly distributed electron beams. The circular detector array (11) is disposed to be coaxial with the circular reflection target and includes a plurality of detection units which receive the X-rays after they have passed through an object to be detected (10).

    COMPUTED TOMOGRAPHY (CT) IMAGE RECONSTRUCTION METHOD AND APPARATUS

    公开(公告)号:EP2469472A4

    公开(公告)日:2018-02-14

    申请号:EP11743411

    申请日:2011-05-11

    IPC分类号: G06T11/00

    CPC分类号: G06T11/006 G06T2211/421

    摘要: The invention discloses a method and apparatus for CT image reconstruction. The method for CT image reconstruction of the present invention comprises the steps of: selecting projection data of the same height on a curve having a curvature approximate to that of the scanning circular orbit; implementing weighting processing on the selected projection data; filtering the weighting processed projection data along the horizontal direction; implementing three-dimensional back projection on the filtered projection data along the direction of ray. The apparatus for CT image reconstruction of the present invention comprises a rebinning unit, a weighting unit, a filtering unit and a back projection unit. Employment of the technical solution of the invention can effectively eliminate cone beam artifact under a large cone angle.

    COMPUTER TOMOGRAPHY IMAGING DEVICE AND METHOD
    9.
    发明公开
    COMPUTER TOMOGRAPHY IMAGING DEVICE AND METHOD 审中-公开
    成像设备和方法电子计算机断层扫描

    公开(公告)号:EP2436312A4

    公开(公告)日:2013-07-24

    申请号:EP09845074

    申请日:2009-12-30

    摘要: The present invention discloses a method for performing CT imaging on a region of interest of an object under examination, comprising: acquiring the CT projection data of the region of interest; acquiring the CT projection data of region B; selecting a group of PI line segments covering the region of interest, and calculating the reconstruction image value for each PI line segment in the group; and combining the reconstruction image values in all the PI line segments to obtain the image of the region of interest. The present invention further discloses a CT imaging device using this method and a data processor therein. Since the 2D/3D slice image of the region of interest can be exactly reconstructed and obtained as long as the X-ray beam covers the region of interest and the region B, it is possible to use a small-sized detector to perform CT imaging on the region of interest at any position of a large-sized object, which reduces to a great extent the radiation dose of the X-ray during the CT scanning.