公开(公告)号：US10209372B2

公开(公告)日：2019-02-19

申请号：US15490787

申请日：2017-04-18

Applicant: American Science and Engineering, Inc.

Inventor： Anatoli Arodzero ,  Joseph Callerame ,  Dan-Cristian Dinca ,  Rajen Sud ,  Lee Grodzins ,  Martin Rommel ,  Peter Rothschild ,  Jeffrey Schubert ,  Aaron Couture ,  Jeffrey M. Denker ,  Jonathan Edward Everett

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

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：US20170315242A1

公开(公告)日：2017-11-02

申请号：US15490787

申请日：2017-04-18

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 ,  H01L27/146 ,  G01T5/08 ,  G01T7/00 ,  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：US20130235977A1

公开(公告)日：2013-09-12

申请号：US13768925

申请日：2013-02-15

Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.

Inventor： Lee Grodzins ,  Peter Rothschild

IPC: H01J35/30

CPC classification number: H01J35/30

Abstract: An apparatus for generating a scanned beam of penetrating electromagnetic radiation. An electron beam is incident on a succession of specific locations on a concave anode which emits electromagnetic waves in response thereto, in such a way that electromagnetic waves exiting from an aperture scan over a range of angles within a scan plane in response to angular scanning of the electron beam. The x-ray beam is extracted from the apparatus via one or more exit apertures in the back hemisphere, on the side of the anode onto which the electron beam impinges.

Abstract translation: 一种用于产生穿透电磁辐射的扫描束的装置。 电子束入射在凹面阳极上的一系列特定位置上，该凹面阳极响应于此而发射电磁波，使得从孔径出射的电磁波响应于扫描平面内的角度范围扫描， 电子束。 X射线束通过电子束撞击的阳极侧的后半球中的一个或多个出射孔从装置中提取出来。

公开(公告)号：US20130208857A1

公开(公告)日：2013-08-15

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 ,  G01N23/20 ,  G01N23/06

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: 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：US20130230140A1

公开(公告)日：2013-09-05

申请号：US13865382

申请日：2013-04-18

Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.

Inventor： Richard Mastronardi ,  Jeffrey M. Denker ,  Peter Rothschild ,  Dan-Cristian Dinca ,  Aaron D. Pailes ,  David R. Blake ,  Domenic Martignetti

IPC: G01N23/04

CPC classification number: G01N23/04 ,  G01V5/0016

Abstract: Methods for inspecting contents of a container. High-energy penetrating radiation collimated into a fan beam illuminates an inspected container from one side, while a plurality of detector plates are disposed on the opposite side of the container. Each detector plate has a plurality of detector modules, each of which, in turn, is disposed on a remotely activated alignment and has multiple detector elements. A controller governs the orientation of each of the plurality of detector plates based at least on the detector signal generated by its detector elements such that each detector element of each detector module of each detector plate may be aligned to within a specified fraction of the transverse dimension of the fan beam as measured at the exit slot.

Abstract translation: 检查容器内容物的方法 准直成风扇光束的高能量穿透辐射从一侧照射被检查的容器，而多个检测器板设置在容器的相对侧上。 每个检测器板具有多个检测器模块，每个检测器模块又分别设置在远程激活的对准上并具有多个检测器元件。 控制器至少基于由其检测器元件产生的检测器信号来控制多个检测器板中的每一个的取向，使得每个检测器板的每个检测器模块的每个检测器元件可以对准在横向尺寸的指定分数内 在出口处测量的风扇光束。