公开(公告)号：WO2011163108A3

公开(公告)日：2012-04-19

申请号：PCT/US2011041033

申请日：2011-06-20

Applicant: AMERICAN SCIENCE & ENG INC ,  ROTHSCHILD PETER J

Inventor： ROTHSCHILD PETER J

IPC: G01T7/00 ,  G01T1/16

CPC classification number: G01T1/1648

Abstract: An apparatus and methods for detecting radiation. A plurality of substantially parallel active collimation vanes are sensitive to the incident radiation for generating at least a first detection signal, and a rear detector detects incident radiation that passes between the substantially parallel active collimation vanes and generates a second detection signal. A processor receives and processes both the first and second detection signals. The active collimator vanes may be enclosed within a light-tight enclosure, and a first photodetector may be provided for detecting scintillation arising at the active collimation vanes, while a second photodetector may be provided for detecting scintillation arising at the rear detector.

Abstract translation: 用于检测辐射的装置和方法。 多个基本上平行的有源准直叶片对入射辐射敏感，用于产生至少第一检测信号，后检测器检测在基本上平行的有效准直叶片之间通过的入射辐射并产生第二检测信号。 处理器接收并处理第一和第二检测信号。 有源准直仪叶片可以封闭在不透光的外壳内，并且可以提供第一光电检测器用于检测在有源准直叶片上产生的闪烁，而可以提供第二光电检测器来检测在后检测器处产生的闪烁。

公开(公告)号：WO2008021807A2

公开(公告)日：2008-02-21

申请号：PCT/US2007075323

申请日：2007-08-07

Applicant: AMERICAN SCIENCE & ENG INC ,  ROTHSCHILD PETER J ,  SCHUBERT JEFFREY R ,  PAILES AARON D

Inventor： ROTHSCHILD PETER J ,  SCHUBERT JEFFREY R ,  PAILES AARON D

IPC: G01N23/04 ,  G01N23/20 ,  G01N23/203 ,  G01V5/00

CPC classification number: G01V5/0016 ,  G01N23/046 ,  G01N23/20083 ,  G01N23/203 ,  G01N2223/419 ,  G01V5/0025

Abstract: An X-ray imaging inspection system for bags and packages. Transmission imaging is performed using a fan beam and a segmented detector, while scatter imaging is performed with a scanned pencil beam, with both beams active simultaneously. Cross-talk between the beams is mitigated by a combination of shielding, scatter detector design, positioning and orientation, and image processing Image processing subtracts the measured radiation scattered from the transmission beam into the scatter detectors, reducing cross-talk.

Abstract translation: 一种用于袋子和包装的X射线成像检查系统。 使用风扇光束和分段检测器进行透射成像，而利用扫描的笔形束执行散射成像，两个光束同时有效。 通过屏蔽，散射检测器设计，定位和取向的组合以及图像处理来减轻光束之间的串扰图像处理将从发射光束散射的测量的辐射减去散射检测器，减少串扰。

公开(公告)号：WO2007130857A2

公开(公告)日：2007-11-15

申请号：PCT/US2007067607

申请日：2007-04-27

Applicant: AMERICAN SCIENCE & ENG INC ,  ROTHSCHILD PETER J

Inventor： ROTHSCHILD PETER J

CPC classification number: G01N23/046 ,  G01N23/223 ,  G01N2223/076 ,  G01N2223/419 ,  G01T1/2985 ,  G01V5/0033 ,  G01V5/005 ,  G01V5/0069

Abstract: A system and methods for identifying contents of an enclosure such as an air cargo container. A three-dimensional image indicative of at least one of the CT number and the density of contents of the enclosure is obtained using penetrating radiation such as x-rays. If one or more suspect regions are identified among contents of the enclosure, a collimated neutron beam is activated to traverse each suspect region and fluorescent emission from the suspect region is detected, allowing material within the suspect region to be characterized based at least on the detected fluorescent emission. Additionally, the collimated neutron beam may be employed for neutron imaging of the contents of the enclosure.

Abstract translation: 用于识别诸如空运货物集装箱的外壳的内容物的系统和方法。 使用诸如x射线的穿透辐射获得指示外壳的CT数量和内容物密度中的至少一个的三维图像。 如果在外壳的内容中识别出一个或多个可疑区域，则激活准直的中子束以遍历每个可疑区域，并且检测来自可疑区域的荧光发射，从而至少基于所检测到的材料来区分可疑区域内的材料 荧光发射。 另外，准直的中子束可用于对外壳的内容物进行中子成像。

公开(公告)号：WO0109594A9

公开(公告)日：2002-09-06

申请号：PCT/US0020347

申请日：2000-07-26

Applicant: AMERICAN SCIENCE & ENG INC

Inventor： ROTHSCHILD PETER ,  GRODZINS LEE

IPC: A61B6/03 ,  H05G2/00 ,  G01N23/04

CPC classification number: A61B6/032 ,  A61B6/4021 ,  G21K1/043

Abstract: A method and apparatus for producing a scanned beam of penetrating radiation. A beam of particles illuminates a portion of a target, the illuminated portion comprising a focal spot having a centroid. Illumination of the target creates a beam of penetrating radiation such as x-rays. The beam of particles is swept across the target in such a manner that the centroid of the focal spot lies on a line defined by the instantaneous direction of the beam of penetrating radiation as defined, in turn, by a collimating path.

Abstract translation: 一种用于产生扫描的穿透辐射束的方法和装置。 粒子束照射目标的一部分，照明部分包括具有质心的焦点。 目标的照明产生穿透辐射束，例如x射线。 颗粒束以这样的方式扫过目标，使得焦点的质心位于由穿透辐射束的瞬时方向限定的线上，如由定义的路径所限定的。

公开(公告)号：WO0173415A2

公开(公告)日：2001-10-04

申请号：PCT/US0109784

申请日：2001-03-27

Applicant: AMERICAN SCIENCE & ENG INC

Inventor： GRODZINS LEE

IPC: G01N23/04 ,  G01N23/00

CPC classification number: G01N23/04

Abstract: A system and method for detecting penetrating radiation emitted by concealed fissile material. A beam of penetrating radiation irradiates an object during all or part of an operating cycle, while penetrating radiation detected by a detector is distinguished as to whether it arises from fissile material within the object.

Abstract translation: 一种用于检测隐藏的裂变材料发射的穿透辐射的系统和方法。 穿透辐射的射线在操作周期的全部或部分期间照射物体，而由检测器检测到的穿透辐射被区分为是否由物体内的裂变材料产生。

公开(公告)号：WO0033059A3

公开(公告)日：2000-11-23

申请号：PCT/US9928035

申请日：1999-11-24

Applicant: AMERICAN SCIENCE & ENG INC

Inventor： GRODZINS LEE ,  ADAMS WILLIAM L

IPC: G01N23/20 ,  G01N23/203 ,  G01V5/00

CPC classification number: G01N23/20

Abstract: A system and a method for determining the density of an object. The intensity of x-rays backscattered from the object is measured by at least two backscatter detectors disposed at different distances from the intersection of an incident x-ray beam with the plane of the detectors. At least one of detectors is sensitive only to x-rays that have scattered more than once in the object, the ratio of scattered x-rays measured by the detectors being a function of the density of the scattering medium.

Abstract translation: 一种确定物体密度的系统和方法。 从物体反向散射的X射线的强度由至少两个后向散射检测器测量，该至少两个后向散射检测器设置在距入射X射线束与检测器平面相交的不同距离处。 至少一个探测器仅对在物体中散射一次以上的X射线敏感，探测器测量的散射X射线的比例是散射介质密度的函数。

公开(公告)号：WO9913323A3

公开(公告)日：1999-08-26

申请号：PCT/US9818642

申请日：1998-09-08

Applicant: AMERICAN SCIENCE & ENG INC

Inventor： GRODZINS LEE ,  ADAMS WILLIAM L

IPC: G01N23/04 ,  G01V5/00 ,  G01N23/20 ,  G01N23/203

CPC classification number: G01N23/04 ,  G01N23/046 ,  G01N2223/419 ,  G01V5/0016 ,  G01V5/0025 ,  G01V5/005 ,  G01V5/0058

Abstract: A tomography system for analyzing an object concealed within an enveloping surface. The system has multiple beams of penetrating radiation, each beam disposed with a distinct orientation with respect to the enveloping surface. Detectors are provided for measuring radiation backscattered by the contents of the enveloping surface and for measuring radiation transmitted through the enveloping surface. The enveloping surface is moved with respect to the multiple beams, and a timer provides for measurement of a time difference between the appearance of features in signals of respective detectors, allowing geometrical characteristics of the features to be determined and displayed.

Abstract translation: 用于分析隐藏在包络表面内的物体的断层摄影系统。 该系统具有多个穿透辐射束，每个光束相对于包络表面具有不同的取向。 提供检测器用于测量由包络表面的内容物反向散射的辐射，并用于测量透过包络表面的辐射。 包围表面相对于多个波束移动，并且定时器提供测量各个检测器的信号中的特征的出现之间的时间差，允许确定和显示特征的几何特征。

公开(公告)号：WO2012142456A3

公开(公告)日：2013-01-17

申请号：PCT/US2012033585

申请日：2012-04-13

Applicant: AMERICAN SCIENCE & ENG INC ,  SCHUBERT JEFFREY R ,  CASON WILLIAM RANDALL

Inventor： SCHUBERT JEFFREY R ,  CASON WILLIAM RANDALL

IPC: G01N23/203 ,  G01V5/02

CPC classification number: G01N23/203

Abstract: A variable-geometry backscatter inspection system has a radiation detector array including one or more backscatter radiation detectors. The position of a second backscatter radiation detector is variable with respect to the position of a first backscatter radiation detector, so that the size of the detector array may be varied by moving the second radiation detector into or out of a predefined alignment with the first radiation detector. The system may include a movable base, and at least one of the detectors is movable with respect to the base. Methods of inspecting an object include forming a detector array by moving a second radiation detector into a predefined alignment with a first radiation detector, illuminating the object with a pencil beam of penetrating radiation, and detecting backscattered radiation with the detector array.

Abstract translation: 可变几何后向散射检查系统具有包括一个或多个后向散射辐射检测器的辐射检测器阵列。 第二后向散射辐射探测器的位置相对于第一后向散射辐射探测器的位置是可变的，使得探测器阵列的尺寸可以通过将第二辐射探测器移入或移出与第一辐射 探测器。 该系统可以包括可移动基座，并且至少一个检测器可相对于基座移动。 检查物体的方法包括通过将第二辐射检测器移动到与第一辐射检测器的预定义对准中，用穿透辐射的笔形束照射物体并用检测器阵列检测背散射辐射来形成检测器阵列。

公开(公告)号：WO2008063695A3

公开(公告)日：2008-11-20

申请号：PCT/US2007066936

申请日：2007-04-19

Applicant: AMERICAN SCIENCE & ENG INC ,  DINCA DAN-CRISTIAN ,  MASTRONARDI RICHARD ,  ROTHSCHILD PETER J

Inventor： DINCA DAN-CRISTIAN ,  MASTRONARDI RICHARD ,  ROTHSCHILD PETER J

IPC: G01V5/00

CPC classification number: G01N23/201 ,  G01N23/203 ,  G01V5/0025

Abstract: A system and methods are provided for imaging an object, based on activating an array of discrete X-ray sources (20) in a prescribed temporal pattern so as to illuminate the object with a beam varying in spatial orientation, and detecting X-rays of the beam after interaction with the object and generating a detector signal. An image of the object may then be constructed on the basis of the time variation of the detector signal. The discrete X-ray sources maybe moved (25) during the course of inspection, moreover, the prescribed temporal pattern may constitute a Hadamard code. The discrete sources may be carbon nanotube x-ray sources.

Abstract translation: 提供了一种系统和方法，用于基于以规定的时间模式激活离散X射线源（20）的阵列来对物体进行成像，以便以在空间方向上变化的光束照射物体，并且检测X射线的X射线 与物体相互作用并产生检测器信号。 然后可以基于检测器信号的时间变化来构建对象的图像。 离散的X射线源可能在检查过程中移动（25），此外，规定的时间模式可能构成Hadamard码。 离散源可以是碳纳米管x射线源。

公开(公告)号：WO2007111672A9

公开(公告)日：2008-02-14

申请号：PCT/US2006049047

申请日：2006-12-21

Applicant: AMERICAN SCIENCE & ENG INC ,  CASON WILLIAM RANDALL ,  ROTHSCHILD PETER J

Inventor： CASON WILLIAM RANDALL ,  ROTHSCHILD PETER J

IPC: G02B26/10 ,  G02B21/00 ,  G21K5/04

CPC classification number: G21K1/04 ,  G02B26/10 ,  G21K1/043

Abstract: Devices and methods for collimation of a penetrating radiation source, such as an x- ray source, for the purpose of creating a scanning beam, as might be employed for purposes of imaging. A first scanning element, constrained to move about a first axis, has at least one aperture for scanning radiation from inside the first scanning element to outside the first scanning element. A second- scanning element constrained to move with respect to a second axis, typically identical to the first, has at least one aperture for scanning radiation that has been transmitted through the first scanning element across a region of an inspected object.

Abstract translation: 用于准直透射辐射源（例如x射线源）的装置和方法，用于产生可能用于成像目的的扫描光束。 被限制为围绕第一轴线移动的第一扫描元件具有至少一个用于将第一扫描元件内部的辐射扫描到第一扫描元件之外的孔。 被限制为相对于第二轴移动的第二扫描元件通常与第一轴相同，具有至少一个用于扫描通过第一扫描元件穿过被检查对象的区域的辐射的孔。