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    • 44. 发明授权
    • X-ray source and detector configuration for a non-translational x-ray diffraction system
    • 用于非平移x射线衍射系统的X射线源和检测器配置
    • US07742563B2
    • 2010-06-22
    • US12207641
    • 2008-09-10
    • Peter Michael EdicGeoffrey HardingBruno K. B. De ManHelmut Rudolf Strecker
    • Peter Michael EdicGeoffrey HardingBruno K. B. De ManHelmut Rudolf Strecker
    • G01N23/20G01N23/04
    • G01N23/20
    • A system and method for scanning objects using a non-translational x-ray diffraction (XRD) system is disclosed. The system includes a scanning area through which an object to be scanned traverses and a distributed x-ray source having a plurality of focal spot locations. The distributed x-ray source is affixed on the scanning area and is configured to emit x-rays towards the object as a series of parallel x-ray beams. A stationary detector arrangement is affixed on another side of the scanning area generally opposite the distributed x-ray source and is configured to measure a coherent scatter spectra of the x-rays after passing through the object. A data acquisition system (DAS) is connected to the detector arrangement and is configured to measure the coherent scatter spectra, which is utilized to generate XRD data and determine a material composition of at least a portion of the object from the XRD data.
    • 公开了一种使用非平移X射线衍射(XRD)系统扫描物体的系统和方法。 该系统包括扫描区域,待扫描物体穿过该扫描区域以及具有多个焦点位置的分布式X射线源。 分布式X射线源被固定在扫描区域上并且被配置为以一系列平行的X射线束朝向物体发射X射线。 固定检测器装置固定在扫描区域的与分布式x射线源大致相对的另一侧,并且被配置成测量穿过物体之后的x射线的相干散射光谱。 数据采集​​系统(DAS)连接到检测器装置,并且被配置为测量相干散射光谱,其被用于产生XRD数据并且根据XRD数据确定物体的至少一部分的材料组成。
    • 45. 发明申请
    • PRIMARY COLLIMATOR AND SYSTEMS FOR X-RAY DIFFRACTION IMAGING, AND METHOD FOR FABRICATING A PRIMARY COLLIMATOR
    • 用于X射线衍射成像的主要收缩器和系统,以及用于制造主要收缩机的方法
    • US20100135462A1
    • 2010-06-03
    • US12325527
    • 2008-12-01
    • Geoffrey HardingHelmut Rudolf StreckerJohannes Delfs
    • Geoffrey HardingHelmut Rudolf StreckerJohannes Delfs
    • G01N23/201G21K1/02
    • G21K1/025G01V5/00
    • A primary collimator for a multiple inverse fan beam x-ray diffraction imaging (MIFB XDI) system. The MIFB XDI system includes a multi-focus x-ray source (MFXS) defining a plurality of focus points arranged along a length of the MFXS. Each focus point is sequentially activated to emit an x-ray fan beam including a plurality of primary beams each directed to a corresponding convergence point. The primary collimator includes a first diaphragm configured to be positioned with respect to the MFXS. The first diaphragm defines a plurality of first channels through a thickness of the first diaphragm. Each first channel is aligned with a corresponding focus point and configured to transmit the x-ray fan beam. A second diaphragm is positioned with respect to the first diaphragm and defines a plurality of second channels through a thickness of the second diaphragm. Each second channel is axially aligned with a corresponding first channel.
    • 用于多反向风扇束x射线衍射成像(MIFB XDI)系统的主准直器。 MIFB XDI系统包括定义沿着MFXS的长度布置的多个聚焦点的多焦点X射线源(MFXS)。 顺序地激活每个对焦点以发射包括多个主光束的x射线扇形束,每个主光束指向相应的会聚点。 主准直器包括构造成相对于MFXS定位的第一隔膜。 第一隔膜通过第一隔膜的厚度限定多个第一通道。 每个第一通道与对应的焦点对准,并且被配置成透射x射线扇形束。 第二隔膜相对于第一隔膜定位,并且通过第二隔膜的厚度限定多个第二通道。 每个第二通道与对应的第一通道轴向对准。
    • 47. 发明申请
    • SYSTEM AND METHOD FOR XRD-BASED THREAT DETECTION
    • 用于基于XRD的威胁检测的系统和方法
    • US20090213989A1
    • 2009-08-27
    • US12390861
    • 2009-02-23
    • Geoffrey Harding
    • Geoffrey Harding
    • G01N23/04H05G1/10
    • G01N23/046G01N23/207G01N2223/419G01N2223/629G01N2223/66G01V5/0025G01V5/005G21K1/02
    • System and method for XRD-based threat detection. An object is scanned with a first threat detection system. One or more alarm objects are identified. Data about the one or more alarm objects is passed from the first threat detection system to a second threat detection system and is used to move and/or to rotate the object in a predetermined ray path that decreases attenuation of scattered x-ray radiation. Also disclosed is a secondary collimator for XRD-based false alarm resolution in computed tomography {“CT”) threat detection systems. The secondary collimator comprises one or more slit apertures configured to provide a multi-angle capability that extends a range of momenta for which XRD intensities are measured for a predetermined range of photon intensities.
    • 用于基于XRD的威胁检测的系统和方法。 用第一个威胁检测系统扫描物体。 识别一个或多个报警对象。 关于一个或多个警报对象的数据从第一威胁检测系统传递到第二威胁检测系统,并且用于在减小散射的X射线辐射的衰减的预定射线路径中移动和/或旋转物体。 还公开了用于计算机断层摄影(“CT”)威胁检测系统中用于基于XRD的假警报解决的次级准直器。 次级准直器包括一个或多个狭缝孔,其被配置为提供多角度能力,其延伸了对于预定范围的光子强度测量X射线衍射光强度的一定范围的力矩。
    • 48. 发明授权
    • Fluorescent x-ray source
    • 荧光X射线源
    • US07567650B2
    • 2009-07-28
    • US10556612
    • 2004-05-12
    • Geoffrey HardingBernd R. David
    • Geoffrey HardingBernd R. David
    • H01J35/08
    • H01J35/12H01J35/08H01J2235/082
    • The present invention relates to an X-ray source for the generation of fluorescent X-rays. The X-ray source is realized by an electron source for the emission of electrons and a target which emits X-rays in response to the incidence of the electrons, the target comprising a ring-shaped primary target for the emission of primary X-rays in response to the incidence of the electrons and a secondary target for the emission of fluorescent X-rays in response to the incidence of the primary X-rays. To obtain an enhanced radiance, it is proposed that the primary target comprises a liquid metal channel arranged in a radial direction relative to a central axis, and that a liquid metal circulates in the liquid metal channel during operation of the X-ray source in the radial direction from an inner side to an outer side of the ring-shaped primary target.
    • 本发明涉及用于产生荧光X射线的X射线源。 X射线源由用于发射电子的电子源和响应于电子的入射而发射X射线的靶实现,靶包括用于发射初级X射线的环形主要靶 响应于电子的入射和响应于初级X射线的入射而发射荧光X射线的次级靶。 为了获得增强的辐射度,提出主要目标包括相对于中心轴线沿径向布置的液态金属通道,并且在X射线源的操作期间液体金属在液态金属通道中循环 径向从环状主要靶的内侧到外侧。