Absorption imaging apparatus and detector array therefor

    公开(公告)号:US11754513B2

    公开(公告)日:2023-09-12

    申请号:US17444322

    申请日:2021-08-03

    摘要: An array (1) for detecting electromagnetic radiation is provided for a radiographic inspection system (20). The array has a plurality of detector elements (2) arranged consecutively along a scan line which extends in a first direction (Y). Each of the detector elements has a detection surface (3) for receiving electromagnetic radiation and converting the received electromagnetic radiation into a corresponding detection signal. Each detection surface (3) has a surface normal (4, N) that extends in a common plane (S) and converges into a common focus (5). The common plane (S) extends in the first direction (Y). The distances between the common focus and the detection surfaces along the respective surface normal (4, N) are different for at least two detector elements.

    Computed Tomography
    6.
    发明申请
    Computed Tomography 审中-公开

    公开(公告)号:US20180180560A1

    公开(公告)日:2018-06-28

    申请号:US15391356

    申请日:2016-12-27

    IPC分类号: G01N23/04 H01J35/08

    摘要: Apparatus for computed tomography is described that is also suitable for X-ray diffraction. The computed tomography measurement uses a line focus 8 and passes the X-rays from the line focus through a perpendicular slit 22 and then through a sample onto a two dimensional detector. A plurality of images are taken, each with the sample rotated about a rotation axis 14 by a different amount, and combined to create a computed tomography image.

    SCANNING METHOD
    8.
    发明申请
    SCANNING METHOD 有权
    扫描方法

    公开(公告)号:US20160313263A1

    公开(公告)日:2016-10-27

    申请号:US15103009

    申请日:2014-12-18

    IPC分类号: G01N23/08

    摘要: A scanning method which is a method of identifying a change in the density of an object includes arranging a source of ionizing radiation and an array of radiation detectors Dn, where n is an integer from 1 to N, capable of detecting the radiation in such a way that radiation counts are counted by the detectors as the source and detectors are rotated around the object and normalized counts values are collated in a matrix such that a pattern may be detected within the matrix from which the presence of a change in the density of the object at a location lying on at least one of the radiation paths may be inferred.

    摘要翻译: 作为识别对象的密度变化的方法的扫描方法包括:排列电离辐射源和辐射检测器阵列阵列nn,其中n是从1到N的整数,能够检测这种辐射的辐射 由于源和检测器围绕物体旋转,辐射计数被检测器计数,并且将归一化的计数值以矩阵形式整理,使得可以在矩阵内检测到图案,从该矩阵中存在变化的密度 可以推断在位于至少一个辐射路径上的位置处的物体。

    PHOTON COUNT-BASED RADIATION IMAGING SYSTEM, METHOD AND DEVICE THEREOF
    9.
    发明申请
    PHOTON COUNT-BASED RADIATION IMAGING SYSTEM, METHOD AND DEVICE THEREOF 审中-公开
    基于光电计数的辐射成像系统,其方法和装置

    公开(公告)号:US20160266054A1

    公开(公告)日:2016-09-15

    申请号:US15031657

    申请日:2014-10-23

    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。 在系统中,x射线源将X射线引导到扫描平台上的样本。 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重建系统基于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。