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    Method and system for timing the injections of electron beams in a multi-energy x-ray cargo inspection system
    2.
    发明授权
    Method and system for timing the injections of electron beams in a multi-energy x-ray cargo inspection system 有权

    公开(公告)号：US11266006B2

    公开(公告)日：2022-03-01

    申请号：US16553496

    申请日：2019-08-28

    Applicant: American Science and Engineering, Inc.

    Inventor： Aleksandr Saverskiy

    IPC: H05G2/00 ,  H05H9/04 ,  H05H7/02 ,  H05H7/08 ,  H01J35/14 ,  H05H7/12 ,  H01J35/00 ,  G01V5/00

    Abstract: Embodiments of the disclosed system and method provide for generating a multiple-energy X-ray pulse. A beam of electrons is generated with an electron gun and modulated prior to injection into an accelerating structure to achieve at least a first and second specified beam current amplitude over the course of respective beam current temporal profiles. A radio frequency field is applied to the accelerating structure with a specified RF field amplitude and a specified RF temporal profile. The first and second specified beam current amplitudes are injected serially, each after a specified delay, in such a manner as to achieve at least two distinct energies of electrons accelerated within the accelerating structure during a course of a single RF-pulse. The beam of electrons is accelerated by the radio frequency field within the accelerating structure to produce accelerated electrons which impinge upon a target for generating Bremsstrahlung X-rays.

    Systems and Methods for Controlling Image Contrast in an X-Ray System
    3.
    发明申请
    Systems and Methods for Controlling Image Contrast in an X-Ray System 有权

    公开(公告)号：US20210372949A1

    公开(公告)日：2021-12-02

    申请号：US16888997

    申请日：2020-06-01

    Applicant: American Science and Engineering, Inc.

    Inventor： Jeffrey R. Schubert

    IPC: G01N23/041 ,  G06T1/00 ,  G01V5/00

    Abstract: An X-ray inspection system for scanning objects and providing corresponding contrast controlled scan images is provided. The system includes an X-ray source configured to generate an X-ray beam for irradiating the object where the X-ray source is coupled with at least a first beam filter having a first thickness and a second beam filter having a second thickness greater than the first thickness, a detector array, a processing unit, a user interface configured to receive a user input indicative of a desired level of contrast in an image, and a controller configured to adjust a position of at least one of the first or second beam filters based on the user input indicative of the desired level of contrast in the at least one image.

    Radiation Threat Detection
    4.
    发明申请
    Radiation Threat Detection 审中-公开

    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.

    Source for Intra-Pulse Multi-Energy X-Ray Cargo Inspection
    6.
    发明申请
    Source for Intra-Pulse Multi-Energy X-Ray Cargo Inspection 有权
    脉冲多能量X射线货物检查的来源

    公开(公告)号：US20170055338A1

    公开(公告)日：2017-02-23

    申请号：US15307463

    申请日：2015-05-14

    Applicant: American Science and Engineering, Inc.

    Inventor： Aleksandr Saverskiy

    IPC: H05H7/02 ,  H05H9/04 ,  H05H7/08 ,  H01J35/14

    CPC classification number: H05H7/02 ,  G01V5/0041 ,  H01J35/00 ,  H01J35/14 ,  H05G2/00 ,  H05H7/08 ,  H05H9/04 ,  H05H2007/025 ,  H05H2007/084

    Abstract: Methods for generating a multiple-energy X-ray pulse. A beam of electrons is generated with an electron gun and modulated prior to injection into an accelerating structure to achieve at least a first and specified beam current amplitude over the course of respective beam current temporal profiles. A radio frequency field is applied to the accelerating structure with a specified RF field amplitude and a specified RF temporal profile. The first and second specified beam current amplitudes are injected serially, each after a specified delay, in such a manner as to achieve at least two distinct endpoint energies of electrons accelerated within the accelerating structure during a course of a single RF-pulse. The beam of electrons is accelerated by the radio frequency field within the accelerating structure to produce accelerated electrons which impinge upon a target for generating Bremsstrahlung X-rays.

    Abstract translation: 用于产生多能X射线脉冲的方法。 用电子枪产生电子束并在注入加速结构之前进行调制，以在各个电流时间曲线的过程中达到至少第一和指定的束电流幅度。 将射频场以特定的RF场幅度和指定的RF时间曲线应用于加速结构。 第一和第二规定的光束电流幅度在每个特定的延迟之后被串联地注入，以便在单个RF脉冲的过程中实现加速结构内加速的电子的至少两个不同的端点能量。 电子束由加速结构内的射频场加速，产生撞击在靶上产生Bre致辐射X射线的加速电子。

    Variable Angle Collimator
    8.
    发明申请
    Variable Angle Collimator 有权
    可变角度准直仪

    公开(公告)号：US20140010351A1

    公开(公告)日：2014-01-09

    申请号：US13933601

    申请日：2013-07-02

    Applicant: American Science and Engineering, Inc.

    Inventor： Martin Rommel

    IPC: G21K1/02 ,  G21K5/04

    CPC classification number: G21K1/04 ,  A61B6/06 ,  G21K1/02 ,  G21K1/025 ,  G21K1/08 ,  G21K5/04 ,  H01J35/30

    Abstract: A system for producing a controllable beam of radiation is controllable electronically, and includes no parts that must move relative to one another while in operation to form the beam. The direction and cross-section of the beam may be controlled electronically by controlling an electron beam. Various embodiments provide an X-ray collimator that allows forming a scanning X-ray beam of desired size and flux independently of the aperture material thickness without requiring movement of the aperture or physical components that create the aperture. Some embodiments provide an X-ray collimator that allows forming a scanning X-ray beam of desired size and flux independently of the beam angle.

    Abstract translation: 用于产生可控的辐射束的系统是可电子控制的，并且在操作中不包括必须相对于彼此移动的部分以形成光束。 通过控制电子束可以电子地控制光束的方向和横截面。 各种实施例提供一种X射线准直器，其允许独立于孔隙材料厚度形成所需尺寸和通量的扫描X射线束，而不需要产生孔径的孔或物理部件的移动。 一些实施例提供一种X射线准直器，其允许独立于光束角形成所需尺寸和通量的扫描X射线束。

    Methods for High Energy X-ray Imaging Using Remotely-Aligned Arcuate Detector Array
    9.
    发明申请
    Methods for High Energy X-ray Imaging Using Remotely-Aligned Arcuate Detector Array 有权
    使用远程对齐的弧形检测器阵列的高能X射线成像方法

    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。

    System and Methods for Multi-Beam Inspection of Cargo in Relative Motion
    10.
    发明申请
    System and Methods for Multi-Beam Inspection of Cargo in Relative Motion 有权
    相对运动中货物多梁检查的系统和方法

    公开(公告)号：US20130136230A1

    公开(公告)日：2013-05-30

    申请号：US13685835

    申请日：2012-11-27

    Applicant: American Science and Engineering, Inc.

    Inventor： Anatoli Arodzero ,  Martin Rommel

    IPC: G01N23/02

    CPC classification number: G01N23/046 ,  G01N23/02 ,  G01N23/083 ,  G01V5/0016

    Abstract: X-ray inspection of moving cargo based on acquiring multiple image lines at one time or substantially at one time. An X-ray source with multiple-beam electron beam targets creates multiple parallel X-ray fan beams. X-ray inspection systems and methods employ such multiple-beam sources for purposes of inspecting fast moving cargo.

    Abstract translation: 基于一次或基本上一次获取多个图像线的移动货物的X射线检查。 具有多光束电子束目标的X射线源产生多个平行的X射线扇形光束。 X射线检查系统和方法采用这种多光束源来检查快速移动的货物。

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