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：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。

公开(公告)号：US20160260572A1

公开(公告)日：2016-09-08

申请号：US15156895

申请日：2016-05-17

Applicant: American Science and Engineering, Inc.

Inventor： Dan-Cristian Dinca ,  Martin Rommel

IPC: H01J35/02 ,  G01V5/00 ,  G01N23/04

CPC classification number: H01J35/02 ,  G01N23/04 ,  G01V5/0016

Abstract: Methods and an x-ray system for dynamically regulating x-ray dose. An x-ray beam is generated and collimated at a source collimator and detected after the x-ray beam traverses an inspected object. A filter may be dynamically interposed by translation of the filter between a focal spot of the source and the source collimator in such a manner as to maintain the portion of the x-ray beam that traverses the inspected object below a specified limit. Alternatively, an aperture of the source collimator may be varied in size or position relative to the focal spot.

Abstract translation: 方法和x射线系统，用于动态调节x射线剂量。 X射线束在源准直器处产生并准直，并在X射线束穿过检测对象之后检测。 过滤器可以通过在源的焦点和源准直仪之间平移过滤器而被动态地插入，以使得将穿过检测对象的X射线束的部分保持在指定极限以下。 或者，源准直仪的孔径可以在相对于焦斑的尺寸或位置上变化。

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：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：US08690427B2

公开(公告)日：2014-04-08

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: A61B6/08 ,  H05G1/26

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。

公开(公告)号：US20190383953A1

公开(公告)日：2019-12-19

申请号：US16242163

申请日：2019-01-08

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: G01T1/20 ,  H01L27/146

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：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：US20140192958A1

公开(公告)日：2014-07-10

申请号：US14146168

申请日：2014-01-02

Applicant: American Science and Engineering, Inc.

Inventor： Dan-Cristian Dinca ,  Martin Rommel ,  Seth Van Liew ,  Aleksandr Saverskiy

IPC: G01N23/02

CPC classification number: H01J35/02 ,  G01N23/04 ,  G01V5/0016

Abstract: Methods and an x-ray system for dynamically regulating x-ray dose. An x-ray beam is generated and collimated at a source collimator and detected after the x-ray beam traverses an inspected object. A filter may be dynamically interposed by translation of the filter between a focal spot of the source and the source collimator in such a manner as to maintain the portion of the x-ray beam that traverses the inspected object below a specified limit. Alternatively, an aperture of the source collimator may be varied in size or position relative to the focal spot.

Abstract translation: 方法和x射线系统，用于动态调节x射线剂量。 X射线束在源准直器处产生并准直，并在X射线束穿过检测对象之后检测。 过滤器可以通过在源的焦点和源准直仪之间平移过滤器而被动态地插入，以使得将穿过检测对象的X射线束的部分保持在指定极限以下。 或者，源准直仪的孔径可以在相对于焦斑的尺寸或位置上变化。

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。