公开(公告)号：US20180252841A1

公开(公告)日：2018-09-06

申请号：US15758184

申请日：2016-09-07

Applicant: American Science and Engineering, Inc.

Inventor： Lee Grodzins ,  Dan-Cristian Dinca ,  Martin Rommel

IPC: G01V5/00 ,  G01N23/20008

CPC classification number: G01V5/0025 ,  G01N23/20008 ,  G01N2223/639 ,  G21K1/02 ,  H01J35/14

Abstract: Methods and an x-ray source for sweeping an x-ray beam across an object of inspection. A beam of electrons is emitted by a cathode, while a sweep controller applies a signal to a beam controller in a prescribed path on an anode, thereby causing an x-ray beam to be emitted from an aperture disposed at one apex of a snout of variable length. The aperture may be a Rommel aperture that allows for forming a scanning x-ray of desired size and flux independently of the angle at which the beam is emitted. Scanning rate may be varied during the course of a scan. Multiple x-ray beams may be formed simultaneously, where one beam is inside a conveyance while the other is outside the conveyance, for example.

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：US20150378048A1

公开(公告)日：2015-12-31

申请号：US14726743

申请日：2015-06-01

Applicant: American Science and Engineering, Inc.

Inventor： Jeffrey R. Schubert ,  Lee Grodzins ,  Jason Toppan ,  Michael Wilson

IPC: G01V5/00 ,  G01N23/04

CPC classification number: G01N23/04 ,  G01V5/0025

Abstract: Methods and apparatus for parcel inspection with x-rays. A source of penetrating radiation contained entirely within an enclosing body of a conveyance generates a beam of penetrating radiation incident upon a parcel while the parcel is disposed externally to the enclosing body. A detector generates an inspection signal based on detection of penetrating radiation after interaction with contents of the parcel. A conveyor positions the parcel with respect to the beam of penetrating radiation, while a processor ascertains a specified characteristic of the parcel based on the inspection signal.

Abstract translation: 用x射线包裹检查的方法和装置。 完全包含在输送机的封闭体内的穿透辐射源产生一个入射到包裹上的穿透辐射束，同时包裹被放置在包围体的外部。 检测器在与包裹的内容相互作用之后基于穿透辐射的检测器产生检查信号。 输送机相对于穿透辐射束定位包裹，而处理器基于检查信号确定包裹的指定特性。

公开(公告)号：US20130195248A1

公开(公告)日：2013-08-01

申请号：US13750134

申请日：2013-01-25

Applicant: American Science and Engineering, Inc.

Inventor： Peter Rothschild ,  Lee Grodzins ,  Paul Bradshaw ,  Louis Wainwright

IPC: G01N23/203

CPC classification number: G01N23/203 ,  G01T7/00 ,  G01V5/0025

Abstract: Apparatus for imaging items behind a concealing barrier. A source of penetrating radiation is contained entirely within a housing. A spatial modulator forms the penetrating radiation into a beam and sweeps the beam to irradiate an inspected object. A detector generates a scatter signal based on penetrating radiation scattered by contents of the inspected object, and a sensor senses motion relative to a previous position of the apparatus with respect to the inspected object. A processor receives the scatter signal and generates an image of the contents of the inspected object based at least on the scatter signal. The housing may be adapted for singled-handed retention by an operator

Abstract translation: 用于在隐蔽屏障后成像物品的装置。 穿透辐射源完全包含在外壳内。 空间调制器将穿透辐射形成束并扫射束以照射被检查物体。 检测器基于被检查物体的内容物散射的穿透辐射产生散射信号，并且传感器相对于被检查物体感测相对于设备的先前位置的运动。 处理器至少基于散射信号接收散射信号并产生检测对象的内容的图像。 外壳可以适用于操作人员单手保留

公开(公告)号：US10656304B2

公开(公告)日：2020-05-19

申请号：US15758184

申请日：2016-09-07

Applicant: American Science and Engineering, Inc.

Inventor： Lee Grodzins ,  Dan-Cristian Dinca ,  Martin Rommel

IPC: G01V5/00 ,  G01N23/20008 ,  G21K1/02 ,  H01J35/14

Abstract: Methods and an x-ray source for sweeping an x-ray beam across an object of inspection. A beam of electrons is emitted by a cathode, while a sweep controller applies a signal to a beam controller in a prescribed path on an anode, thereby causing an x-ray beam to be emitted from an aperture disposed at one apex of a snout of variable length. The aperture may be a Rommel aperture that allows for forming a scanning x-ray of desired size and flux independently of the angle at which the beam is emitted. Scanning rate may be varied during the course of a scan. Multiple x-ray beams may be formed simultaneously, where one beam is inside a conveyance while the other is outside the conveyance, for example.

公开(公告)号：US09658343B2

公开(公告)日：2017-05-23

申请号：US15050894

申请日：2016-02-23

Applicant: American Science and Engineering, Inc.

Inventor： Anatoli Arodzero ,  Joseph Callerame ,  Dan-Christian Dinca ,  Rajen Sud ,  Lee Grodzins ,  Martin Rommel ,  Peter Rothschild ,  Jeffrey Schubert

IPC: G01R1/20 ,  G01T7/00 ,  H01L27/146 ,  H01L27/144 ,  G01T1/20 ,  G01T5/08 ,  G01T3/06

CPC classification number: G01T1/2018 ,  G01T1/20 ,  G01T1/2006 ,  G01T1/2008 ,  G01T3/06 ,  G01T5/08 ,  G01T7/00 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14643 ,  H01L27/14658

Abstract: Methods for discriminating among x-ray beams of distinct energy content. A first volume of scintillation medium converts energy of incident penetrating radiation into scintillation light which is extracted from a scintillation light extraction region by a plurality of optical waveguides that convert the scintillation light to light of a longer wavelength. An x-ray beam initially incident upon the first volume of scintillation medium and traversing the first volume is then incident on a second volume of scintillation medium. The first and second scintillation media may be separated by an absorber or one or more further volumes of scintillation medium, and may also have differential spectral sensitivities. Scintillation light from the first and second scintillation volumes is detected in respective detectors and processed to yield a measure of respective low energy and high-energy components of the incident x-ray beam.

公开(公告)号：US20160170044A1

公开(公告)日：2016-06-16

申请号：US15050894

申请日：2016-02-23

Applicant: American Science and Engineering, Inc.

Inventor： Anatoli Arodzero ,  Joseph Callerame ,  Dan-Christian Dinca ,  Rajen Sud ,  Lee Grodzins ,  Martin Rommel ,  Peter Rothschild ,  Jeffrey Schubert

IPC: G01T1/20

CPC classification number: G01T1/2018 ,  G01T1/20 ,  G01T1/2006 ,  G01T1/2008 ,  G01T3/06 ,  G01T5/08 ,  G01T7/00 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14643 ,  H01L27/14658

Abstract: Methods for discriminating among x-ray beams of distinct energy content. A first volume of scintillation medium converts energy of incident penetrating radiation into scintillation light which is extracted from a scintillation light extraction region by a plurality of optical waveguides that convert the scintillation light to light of a longer wavelength. An x-ray beam initially incident upon the first volume of scintillation medium and traversing the first volume is then incident on a second volume of scintillation medium. The first and second scintillation media may be separated by an absorber or one or more further volumes of scintillation medium, and may also have differential spectral sensitivities. Scintillation light from the first and second scintillation volumes is detected in respective detectors and processed to yield a measure of respective low energy and high-energy components of the incident x-ray beam.

Abstract translation: 用于区分不同能量含量的x射线束的方法。 闪烁介质的第一体积将入射穿透辐射的能量转换成通过将闪烁光转换为较长波长的光的多个光波导从闪烁光提取区域提取的闪烁光。 最初入射到第一体积的闪烁介质并穿过第一体积的X射线束然后入射到第二体积的闪烁介质上。 第一和第二闪烁介质可以由吸收器或一个或多个另外的体积的闪烁介质分离，并且还可以具有差的光谱灵敏度。 在相应的检测器中检测来自第一和第二闪烁体积的闪烁光，并对其进行处理以产生入射的X射线束的各自的低能量和高能量分量的量度。

公开(公告)号：US09285488B2

公开(公告)日：2016-03-15

申请号：US13758189

申请日：2013-02-04

Applicant: American Science and Engineering, Inc.

Inventor： Anatoli Arodzero ,  Joseph Callerame ,  Dan-Cristian Dinca ,  Rajen Sud ,  Lee Grodzins ,  Martin Rommel ,  Peter Rothschild ,  Jeffrey Schubert

IPC: G01T1/20 ,  H01L27/146 ,  G01T5/08 ,  G01V5/00

CPC classification number: G01T1/2018 ,  G01T1/20 ,  G01T1/2006 ,  G01T1/2008 ,  G01T3/06 ,  G01T5/08 ,  G01T7/00 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14643 ,  H01L27/14658

Abstract: A detector and methods for inspecting material on the basis of scintillator coupled by wavelength-shifting optical fiber to one or more photo-detectors, with a temporal integration of the photo-detector signal. An unpixelated volume of scintillation medium converts energy of incident penetrating radiation into scintillation light which is extracted from a scintillation light extraction region by a plurality of optical waveguides. This geometry provides for efficient and compact detectors, enabling hitherto unattainable geometries for backscatter detection and for energy discrimination of incident radiation. Additional energy-resolving transmission configurations are enabled as are skew- and misalignment compensation.

Abstract translation: 一种检测器和用于通过波长移位光纤耦合到一个或多个光电检测器的闪烁体检查材料的方法，具有光检测器信号的时间积分。 闪烁介质的未分离体积将入射穿透辐射的能量转换成通过多个光波导从闪烁光提取区域提取的闪烁光。 这种几何形状提供了有效和紧凑的检测器，使得迄今无法实现的后向散射检测几何形状和入射辐射的能量鉴别。 能够进行额外的能量分辨传输配置，如偏斜和偏移补偿。

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：US09020103B2

公开(公告)日：2015-04-28

申请号：US13768383

申请日：2013-02-15

Applicant: American Science and Engineering, Inc.

Inventor： Lee Grodzins

IPC: G21K1/04 ,  G21K1/02 ,  G02B26/00 ,  G02B26/08 ,  G02B26/10 ,  G02B27/09 ,  G02B27/30

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。