公开(公告)号：US20140233707A1

公开(公告)日：2014-08-21

申请号：US13768383

申请日：2013-02-15

Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.

Inventor： Lee Grodzins ,  Jeffrey R. Schubert ,  Omar Al-Kofahi ,  Peter J. Rothschild

IPC: G21K1/04

CPC classification number: G21K1/046

Abstract: A versatile beam scanner for generating a far-field scanned pencil beam, and, alternatively, a far-field pencil beam. An angle selector limits the angular extent of an inner fan beam emitted by a source of penetrating radiation. The source and angle selector may be translated, along a direction parallel to a central axis of a multi-aperture unit, in such a manner as to generate a scanned far-field pencil beam, when rings of apertures are interposed between the source and an inspected target, or, alternatively, a far-field fan beam, when no ring of apertures is interposed.

Abstract translation: 一种用于产生远场扫描笔型光束的通用光束扫描器，或者替代地，远场笔型光束。 角度选择器限制由穿透辐射源发射的内扇形光束的角度范围。 源极和角度选择器可以沿着平行于多孔单元的中心轴线的方向平移，以便产生扫描的远场笔形光束，当孔的环插入在源和源 检查目标，或者替代地，当没有孔的环被插入时，远场扇形束。

公开(公告)号：US20130343520A1

公开(公告)日：2013-12-26

申请号：US14010777

申请日：2013-08-27

Applicant: American Science and Engineering, Inc.

Inventor： Lee Grodzins ,  Peter J. Rothschild

IPC: G01V5/00

CPC classification number: G01V5/0016 ,  G01N23/20 ,  G01V5/0025 ,  G01V5/0066 ,  G01V5/0075

Abstract: Systems and methods for inspecting an object with a scanned beam of penetrating radiation. Scattered radiation from the beam is detected, in either a backward or forward direction, as is radiation transmitted through the inspected object. The source of penetrating radiation is concealed within an enclosure of a road-worthy vehicle, and detected with a large-area uncollimated detector similarly concealed within the enclosure.

Abstract translation: 用扫描的穿透辐射束检查物体的系统和方法。 在向后或向前的方向上检测来自光束的散射辐射，如通过被检查物体的辐射。 穿透辐射源被隐藏在道路有价值的车辆的外壳内，并用类似地隐藏在外壳内的大面积未经准备的检测器进行检测。

公开(公告)号：US20130039463A1

公开(公告)日：2013-02-14

申请号：US13650313

申请日：2012-10-12

Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.

Inventor： Richard Mastronardi ,  Peter J. Rothschild

IPC: G01N23/04

CPC classification number: G01V5/0008

Abstract: A system and method for inspecting a vehicle by means of one or more sources and detectors of penetrating radiation. The source(s) and detector(s) are carried on a mobile conveyance and deployed at a point of operation. One source swings away from the conveyance on a deployable member, such as a boom, such that the source can irradiate a vehicle from above or below. A detector deploys outwardly from the mobile conveyance, remaining mechanically coupled to the mobile conveyance in a position in a horizontal plane, such that the detector intercepts penetrating radiation from the source positioned above the inspected vehicle, which penetrating radiation has interacted with the inspected vehicle. A ramp may be provided to allow the inspected vehicle to be driven to a position between the vertically irradiating source and a transmission detector.

Abstract translation: 一种用于通过一个或多个穿透辐射源和检测器检查车辆的系统和方法。 源和检测器携带在移动式输送器上并在操作点进行展开。 一个源在诸如吊杆的可展开构件上远离运输工具摆动，使得源可以从上方或下方照射车辆。 检测器从移动输送器向外部展开，在水平面上的位置保持机械耦合到移动输送器，使得检测器拦截来自位于被检查车辆上方的源的穿透辐射，该穿透辐射与被检查的车辆相互作用。 可以设置斜坡以允许被检查车辆被驱动到垂直照射源和变速器检测器之间的位置。

公开(公告)号：US20180328861A1

公开(公告)日：2018-11-15

申请号：US15808003

申请日：2017-11-09

Applicant: American Science and Engineering, Inc.

Inventor： Lee Grodzins ,  Peter J. Rothschild ,  William L. Adams

IPC: G01N23/04 ,  G01V5/00 ,  G01T3/06

CPC classification number: G01N23/04 ,  G01T3/06 ,  G01V5/0025 ,  G01V5/0091

Abstract: Systems and methods for detecting clandestine fissile or radioactive material on the basis of emitted radiation and particles (such as neutrons and alpha particles) arising from within the material. Emission by the fissile or radioactive material is detected in conjunction with a conventional x-ray imaging system that includes an external source of illuminating penetrating radiation, at least one detector configured to detect at least the penetrating radiation and to generate a detector signal, and a processor configured as a detector signal discriminator to generate an output indicating whether the detector signal is triggered by an origin other than illuminating penetrating radiation. Active and passive modes of detection are described by some embodiments. Other embodiments are directed toward neutron detection, gamma ray detection with energy resolution, and designs of detectors to enhance the detection of clandestine nuclear material.

公开(公告)号：US20130039453A1

公开(公告)日：2013-02-14

申请号：US13650709

申请日：2012-10-12

Applicant: American Science and Engineering, Inc.

Inventor： Lee Grodzins ,  Peter J. Rothschild ,  William L. Adams

IPC: G01T1/00

CPC classification number: G01N23/04 ,  G01T3/06 ,  G01V5/0025 ,  G01V5/0091

Abstract: Systems and methods for detecting clandestine fissile or radioactive material on the basis of emitted radiation and particles (such as neutrons and alpha particles) arising from within the material. Emission by the fissile or radioactive material is detected in conjunction with a conventional x-ray imaging system that includes an external source of illuminating penetrating radiation, at least one detector configured to detect at least the penetrating radiation and to generate a detector signal, and a processor configured as a detector signal discriminator to generate an output indicating whether the detector signal is triggered by an origin other than illuminating penetrating radiation. Active and passive modes of detection are described by some embodiments. Other embodiments are directed toward neutron detection, gamma ray detection with energy resolution, and designs of detectors to enhance the detection of clandestine nuclear material.

公开(公告)号：US09841386B2

公开(公告)日：2017-12-12

申请号：US13650709

申请日：2012-10-12

Applicant: American Science and Engineering, Inc.

Inventor： Lee Grodzins ,  Peter J. Rothschild ,  William L. Adams

IPC: G01N23/04 ,  G01T3/06 ,  G01V5/00

CPC classification number: G01N23/04 ,  G01T3/06 ,  G01V5/0025 ,  G01V5/0091

Abstract: Systems and methods for detecting clandestine fissile or radioactive material on the basis of emitted radiation and particles (such as neutrons and alpha particles) arising from within the material. Emission by the fissile or radioactive material is detected in conjunction with a conventional x-ray imaging system that includes an external source of illuminating penetrating radiation, at least one detector configured to detect at least the penetrating radiation and to generate a detector signal, and a processor configured as a detector signal discriminator to generate an output indicating whether the detector signal is triggered by an origin other than illuminating penetrating radiation. Active and passive modes of detection are described by some embodiments. Other embodiments are directed toward neutron detection, gamma ray detection with energy resolution, and designs of detectors to enhance the detection of clandestine nuclear material.

公开(公告)号：US09535019B1

公开(公告)日：2017-01-03

申请号：US14499572

申请日：2014-09-29

Applicant: American Science and Engineering, Inc.

Inventor： Peter J. Rothschild

IPC: G01N23/201 ,  G01N23/203 ,  G01V5/00

CPC classification number: G01N23/203 ,  G01V5/0025

Abstract: A method for imaging a target with an x-ray scatter apparatus. Air scatter from air intervening between the x-ray scatter apparatus and a target overwhelms x-ray scatter from the target in that x-ray scatter from a position on the target is no more than 10% of the x-ray scatter due to intervening air scatter that reaches at least one point in the detector plane of the x-ray scatter apparatus. The target is illuminated with a beam of x-rays scanned across the target, and x-rays scattered by the target are detected using a detector with a centroid displaced with respect to the beam axis by at least five feet. The detector signal is then processed to generate an image of the target. The beam of x-rays may be unshielded, and/or the detector may be uncollimated.

Abstract translation: 一种用X射线散射装置对靶进行成像的方法。 从X射线散射装置和目标之间插入的空气中的空气散射使目标物的X射线散射从靶上的位置射出X射线散射不能超过由于介入而产生的x射线散射的10％ 达到x射线散射装置的检测器平面中的至少一个点的空气散射。 用目标扫描的X射线照射目标，并且使用具有相对于光束轴移位至少五英尺的质心的检测器来检测由目标散射的x射线。 然后处理检测器信号以产生目标的图像。 X射线束可以是非屏蔽的，和/或检测器可以是未被准直的。