公开(公告)号：US08094783B2

公开(公告)日：2012-01-10

申请号：US12572934

申请日：2009-10-02

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G01N23/20

CPC classification number: G01N23/20066

Abstract: A method for performing materials analysis of an object using an X-ray system includes generating an X-ray beam using an X-ray source having an anode and acquiring a scatter spectrum from Compton scatter produced when the X-ray beam interacts with the object. The scatter spectrum is acquired using an energy resolving detector. A Compton profile is extracted from the scatter spectrum by processing the scatter spectrum using a control system of the X-ray system. The Compton profile includes peaks at characteristic lines of the anode. The method further includes identifying a characteristic of a material of the object using the Compton profile, and outputting an indication of the characteristic of the material.

Abstract translation: 使用X射线系统对物体进行材料分析的方法包括使用具有阳极的X射线源产生X射线束，并且当X射线束与物体相互作用时获得由康普顿散射产生的散射光谱 。 使用能量分辨检测器获取散射光谱。 通过使用X射线系统的控制系统处理散射光谱从散射光谱中提取康普顿谱。 康普顿曲线包括阳极特征线上的峰。 该方法还包括使用康普顿曲线识别对象的材料的特征，并输出材料的特征的指示。

公开(公告)号：US07924978B2

公开(公告)日：2011-04-12

申请号：US12390861

申请日：2009-02-23

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G21K1/06

CPC classification number: G01N23/046 ,  G01N23/207 ,  G01N2223/419 ,  G01N2223/629 ,  G01N2223/66 ,  G01V5/0025 ,  G01V5/005 ,  G21K1/02

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07889845B2

公开(公告)日：2011-02-15

申请号：US11961527

申请日：2007-12-20

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G21K1/00

CPC classification number: G21K1/025 ,  Y10T29/49826

Abstract: A method for assembling a secondary collimator including a first face plate having a first surface and an opposing second surface is provided. The method includes positioning a lamella assembly on the first face plate, wherein the lamella assembly includes at least one radiation-absorbing material layer and at least one radiation-transmitting material layer, such that a first surface of the lamella assembly is adjacent the second surface of the first face plate. The method also includes coupling a second face plate to the first face plate and the lamella assembly such that a first surface of the second face plate is adjacent a second surface of the lamella assembly.

Abstract translation: 提供一种用于组装包括具有第一表面和相对的第二表面的第一面板的次级准直器的方法。 该方法包括将薄片组件定位在第一面板上，其中薄片组件包括至少一个辐射吸收材料层和至少一个辐射透射材料层，使得薄片组件的第一表面邻近第二表面 的第一面板。 该方法还包括将第二面板联接到第一面板和薄片组件，使得第二面板的第一表面邻近薄片组件的第二表面。

公开(公告)号：US07874730B2

公开(公告)日：2011-01-25

申请号：US12005843

申请日：2007-12-28

Applicant: Geoffrey Harding ,  Johannes Paul Delfs

Inventor： Geoffrey Harding ,  Johannes Paul Delfs

IPC: G01D18/00

CPC classification number: G01N23/20083 ,  G01N2223/045 ,  G01N2223/3037 ,  G01N2223/637 ,  G01N2223/639 ,  G01V5/0016 ,  G01V5/0025 ,  G01V5/0041

Abstract: Systems and methods for reducing a degradation effect on a signal are described. One of the methods includes pre-processing data based on a scan of a reference object and a scan of a substance. The reference object includes a material having an atomic number ranging from and including forty to sixty.

Abstract translation: 描述了用于降低对信号的劣化效应的系统和方法。 其中一种方法包括基于参考对象的扫描和物质的扫描来预处理数据。 参考对象包括原子序数在四十到六十之间的材料。

公开(公告)号：US07835495B2

公开(公告)日：2010-11-16

申请号：US12263023

申请日：2008-10-31

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G01N23/20 ,  G01N23/083

CPC classification number: G01V5/0016 ,  G01N23/20083 ,  G01T1/00 ,  G01V5/0025

Abstract: An X-ray diffraction imaging system is provided. The X-ray diffraction imaging system includes an X-ray source configured to emit an X-ray pencil beam and a scatter detector configured to receive scattered radiation having a scatter angle from the X-ray pencil beam. The scatter detector is located substantially in a plane and includes a plurality of detector strips. A first detector strip has a first width equal to a linear extent of the X-ray pencil beam measured at the plane in a direction parallel to the first width.

Abstract translation: 提供X射线衍射成像系统。 X射线衍射成像系统包括被配置为发射X射线笔束的X射线源和被配置为接收具有来自X射线笔形束的散射角的散射辐射的散射检测器。 散射检测器基本上位于平面中并且包括多个检测器条。 第一检测条具有等于在平行于第一宽度的方向上在该平面处测量的X射线笔束的线性范围的第一宽度。

公开(公告)号：US20100254516A1

公开(公告)日：2010-10-07

申请号：US11961527

申请日：2007-12-20

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G21K1/02 ,  B23P11/00

CPC classification number: G21K1/025 ,  Y10T29/49826

Abstract: A method for assembling a secondary collimator including a first face plate having a first surface and an opposing second surface is provided. The method includes positioning a lamella assembly on the first face plate, wherein the lamella assembly includes at least one radiation-absorbing material layer and at least one radiation-transmitting material layer, such that a first surface of the lamella assembly is adjacent the second surface of the first face plate. The method also includes coupling a second face plate to the first face plate and the lamella assembly such that a first surface of the second face plate is adjacent a second surface of the lamella assembly.

Abstract translation: 提供一种用于组装包括具有第一表面和相对的第二表面的第一面板的次级准直器的方法。 该方法包括将薄片组件定位在第一面板上，其中薄片组件包括至少一个辐射吸收材料层和至少一个辐射透射材料层，使得薄片组件的第一表面邻近第二表面 的第一面板。 该方法还包括将第二面板联接到第一面板和薄片组件，使得第二面板的第一表面邻近薄片组件的第二表面。

公开(公告)号：US07773724B2

公开(公告)日：2010-08-10

申请号：US11484533

申请日：2006-07-11

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G01N23/201 ,  G01N23/207

CPC classification number: G01N23/201 ,  G01V5/0025

Abstract: A system for generating an improved diffraction profile is described. The system includes at least one x-ray source configured to generate x-rays and a primary collimator outputting a first x-ray beam to a first focus point and a second x-ray beam to a second focus point. The primary collimator generates the first and second x-ray beams from the x-rays. The system further includes a container, and a first scatter detector configured to detect a first set of scattered radiation generated upon intersection of the first x-ray beam with the container and to detect a second set of scattered radiation generated upon intersection of the second x-ray beam with the container. An angle of scatter of the first set of scattered radiation detected by the first scatter detector is at most half of an angle of scatter of the second set of scattered radiation detected by the first scatter detector.

Abstract translation: 描述了用于产生改进的衍射轮廓的系统。 该系统包括被配置为产生x射线的至少一个X射线源和将第一x射线束输出到第一焦点并将第二x射线束输出到第二焦点的主准直仪。 主准直器从x射线产生第一和第二X射线束。 该系统还包括容器和第一散射检测器，其被配置为检测在第一x射线束与容器相交时产生的第一组散射辐射，并且检测在第二x射线与第二x射线交叉时产生的第二组散射辐射 带容器的光束。 由第一散射检测器检测到的第一组散射辐射的散射角为由第一散射检测器检测的第二组散射辐射的散射角的至多一半。

公开(公告)号：US07738729B2

公开(公告)日：2010-06-15

申请号：US11498114

申请日：2006-08-02

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G06K9/40 ,  G06K9/00 ,  G01N23/06 ,  G01N23/04 ,  G01N23/20

CPC classification number: G06T11/008 ,  G06T2207/10112 ,  G06T2207/30112

Abstract: A method for reducing an artifact within an image of a substance is described. The method includes generating the image of the substance, and constraining a measured linear attenuation coefficient of a pixel of the image based on at least one of a measured diffraction profile, a measured effective atomic number, and a measured packing fraction of the substance.

Abstract translation: 描述了用于减少物质图像内的伪影的方法。 该方法包括产生物质的图像，并且基于测量的衍射图，测量的有效原子序数和物质的测量的填充分数中的至少一个来约束图像的像素的测量的线性衰减系数。

公开(公告)号：US20090168962A1

公开(公告)日：2009-07-02

申请号：US12006010

申请日：2007-12-28

Applicant: Geoffrey Harding

Inventor： Geoffrey Harding

IPC: G01N23/20 ,  G01N31/00

CPC classification number: G01N23/20083

Abstract: A system and methods for characterizing an unknown substance is described. One of the methods include determining an effective atomic number of the unknown substance as a first function of a first gradient of a first line.

Abstract translation: 描述用于表征未知物质的系统和方法。 方法之一包括将未知物质的有效原子数确定为第一行的第一梯度的第一函数。

公开(公告)号：US20090168958A1

公开(公告)日：2009-07-02

申请号：US12258681

申请日：2008-10-27

Applicant: Cristina Francesca Cozzini ,  Marko Klaus Baller ,  Geoffrey Harding

Inventor： Cristina Francesca Cozzini ,  Marko Klaus Baller ,  Geoffrey Harding

IPC: G01N23/04 ,  G01N23/201

CPC classification number: G01N23/20083 ,  G01N2223/639 ,  G01V5/0016 ,  G01V5/0025

Abstract: A scanner includes a transmission detector, an x-ray source positioned to emit a beam of x-rays toward the transmission detector, and a scatter detector positioned to receive x-rays scattered from the beam of x-rays by an object. The scanner includes a computer programmed to receive data from the transmission detector and from the scatter detector, and determine a material composition of the object based on the data received from the transmission and scatter detectors.

Abstract translation: 扫描器包括传输检测器，定位成朝向传输检测器发射X射线束的x射线源，以及散射检测器，其被定位成接收由物体从​​X射线束散射的X射线。 扫描仪包括被编程为从传输检测器和散射检测器接收数据的计算机，并且基于从传输和散射检测器接收的数据来确定对象的材料组成。