CHARGED PARTICLE SCANNERS
    1.
    发明申请

    公开(公告)号:US20200335299A1

    公开(公告)日:2020-10-22

    申请号:US16853529

    申请日:2020-04-20

    摘要: A volume interrogation system can use an accelerated beam of charged particles to interrogate objects using charged-particle attenuation and scattering tomography to screen items such as electronic devices, packages, baggage, industrial products, or food products for the presence of materials of interest inside. The apparatus, systems, and methods in this patent document can be employed in checkpoint applications to scan items. Such checkpoint applications can include border crossings, mass transit terminals (subways, buses, railways, ferries, etc.), and government and private-sector facilities.

    Coherent spread-spectrum coded waveforms in synthetic aperture image formation

    公开(公告)号:US10321889B2

    公开(公告)日:2019-06-18

    申请号:US15804955

    申请日:2017-11-06

    发明人: Allan Wegner

    摘要: Techniques, systems, and devices are disclosed for synthetic aperture ultrasound imaging using spread-spectrum, wide instantaneous band, coherent, coded waveforms. In one aspect, a method includes synthesizing a composite waveform formed of a plurality of individual orthogonal coded waveforms that are mutually orthogonal to each other, correspond to different frequency bands and including a unique frequency with a corresponding phase; transmitting an acoustic wave based on the composite waveform toward a target from one or more transmitting positions; and receiving at one or more receiving positions acoustic energy returned from at least part of the target corresponding to the transmitted acoustic waveforms, in which the transmitting and receiving positions each include one or both of spatial positions of an array of transducer elements relative to the target and beam phase center positions of the array, and the transmitted acoustic waveforms and the returned acoustic waveforms produce an enlarged effective aperture.

    SENSOR FUSION WITH MUON DETECTOR ARRAYS TO AUGMENT TOMOGRAPHIC IMAGING USING AMBIENT COSMIC RAYS
    6.
    发明申请
    SENSOR FUSION WITH MUON DETECTOR ARRAYS TO AUGMENT TOMOGRAPHIC IMAGING USING AMBIENT COSMIC RAYS 有权
    传感器融合与MUON检测器阵列到使用环境空间轨道的全景图像成像

    公开(公告)号:US20160291197A1

    公开(公告)日:2016-10-06

    申请号:US15065638

    申请日:2016-03-09

    IPC分类号: G01V5/00 G01T3/00 G01T1/167

    摘要: Techniques, systems and apparatus are described for operating a multimode passive detection system (MMPDS). A multimode passive detection system includes charged particle tracking detectors to measure cosmic ray-based charged particle trajectories in a volume of interest. The multimode passive detection system includes fission product detectors to detect cosmic ray-based charged particle induced fission in a fissile material present in the volume of interest.

    摘要翻译: 描述了用于操作多模式被动检测系统(MMPDS)的技术,系统和装置。 多模式被动检测系统包括带电粒子跟踪检测器,用于测量感兴趣体积中基于宇宙射线的带电粒子轨迹。 多模式被动检测系统包括裂变产物检测器,用于检测存在于感兴趣体积中的易裂变材料中基于宇宙射线的带电粒子引起的裂变。

    ACTIVE CHARGED PARTICLE TOMOGRAPHY
    7.
    发明申请
    ACTIVE CHARGED PARTICLE TOMOGRAPHY 有权
    主动充电粒子TOMOGRAPHY

    公开(公告)号:US20160260578A1

    公开(公告)日:2016-09-08

    申请号:US15060414

    申请日:2016-03-03

    IPC分类号: H01J37/26 G01T3/00 G01T5/00

    CPC分类号: G01V5/0016

    摘要: An active radiation source portal monitoring system includes a particle accelerator to generate accelerated protons as a source of charged particles; a charged particles control unit to control the charged particles to enter into a volume to be scanned in a desired direction to interact with an object; a particle tracking unit to detect the charged particles exiting the volume after interacting with the object and generate signals indicative of information on the charged particles exiting the volume; and a signal processing unit communicatively coupled to the particle tracking unit. The signal processing unit can receive the generated signals and analyze scattering of the charged particles in one or more materials included in the object based on the received signals indicative of the information on the charged particles exiting the volume to obtain a tomographic profile or a spatial distribution of scattering centers within the object.

    摘要翻译: 主动辐射源门禁监测系统包括产生加速质子作为带电粒子源的粒子加速器; 带电粒子控制单元,用于控制带电粒子进入要在所需方向上扫描的体积以与物体相互作用; 粒子跟踪单元,用于在与物体相互作用之后检测离开该体积的带电粒子,并产生指示离开该体积的带电粒子的信息的信号; 以及通信地耦合到所述粒子跟踪单元的信号处理单元。 信号处理单元可以基于接收到的指示关于离开该体积的带电粒子的信息的信号来分析所产生的信号并分析被包含在一个或多个材料中的带电粒子的散射,以获得断层图或空间分布 的物体内的散射中心。

    MATERIAL DISCRIMINATION USING SCATTERING AND STOPPING OF MUONS AND ELECTRONS
    8.
    发明申请
    MATERIAL DISCRIMINATION USING SCATTERING AND STOPPING OF MUONS AND ELECTRONS 有权
    使用散射和停止MU和电子的材料辨别

    公开(公告)号:US20160041297A1

    公开(公告)日:2016-02-11

    申请号:US14822825

    申请日:2015-08-10

    IPC分类号: G01V5/00 G01N23/08 G01N23/20

    摘要: In one aspect, a process for characterizing a range of materials based on the scattering and stopping of incident cosmic ray charged particles passing through each material includes: determining a scattering metric and a stopping metric for each material within the range of materials exposed to cosmic ray charged particles; computing a ratio of the scattering metric to the stopping metric to obtain a scattering-to-stopping ratio for each material within the range of materials for the material; and establishing a scattering-stopping relationship for the range of materials based on the determined pairs of the scattering-to-stopping ratio and the associated scattering metric for the range of materials.

    摘要翻译: 一方面,基于通过每种材料的入射宇宙射线带电粒子的散射和停止来表征材料范围的方法包括:确定在暴露于宇宙射线的材料的范围内的每种材料的散射度量和停止度量 带电粒子; 计算散射度量与停止度量的比率,以获得材料材料范围内的每种材料的散射停止比; 以及基于确定的散射停止比对和材料范围的相关散射度量,确定材料范围的散射停止关系。

    MUON TOMOGRAPHY IMAGING IMPROVEMENT USING OPTIMIZED LIMITED ANGLE DATA
    9.
    发明申请
    MUON TOMOGRAPHY IMAGING IMPROVEMENT USING OPTIMIZED LIMITED ANGLE DATA 有权
    使用优化的有限角度数据进行MUON TOMOGRAPHY成像改进

    公开(公告)号:US20150287237A1

    公开(公告)日:2015-10-08

    申请号:US14678921

    申请日:2015-04-03

    摘要: Disclosed technology can provide a process for generating reconstructed muon image resolution to optimize the use of the limited angular range muon track data collected by a muon tomography system. In one aspect, a process for improving reconstructed muon image resolution for a volume of interest (VOI) imaged by a muon tomography system includes: collecting raw muon track data of cosmic ray muon tracks passing through the VOI; grouping the raw muon track data into two or more subsets of tracks based on at least one angular distribution of the muon tracks in the raw muon track data; generating a set of images of the VOI based on the two or more subsets of tracks; and combining information from the set of reconstructed images and a reconstructed image based on the full set of the raw muon track data to obtain a resulting reconstructed image of the VOI.

    摘要翻译: 所公开的技术可以提供用于产生重建的muon图像分辨率以优化由μ子层析成像系统收集的有限角度范围muon轨道数据的使用的过程。 一方面,用于通过μ子层析成像系统成像的用于改善感兴趣体积(VOI)的重构μon图像分辨率的方法包括:收集通过VOI的宇宙射线μ子轨道的原始muon轨道数据; 基于原始muon轨道数据中的μ子轨道的至少一个角度分布,将原始muon轨道数据分组成两个或更多个磁道子集; 基于所述两个或更多个磁道子集生成所述VOI的一组图像; 以及基于所述原始muon轨道数据的完整集合来组合来自所述一组重建图像的信息和重建图像,以获得所得到的VOI的重建图像。

    CHARGED PARTICLE TOMOGRAPHY SCANNER FOR REAL-TIME VOLUMETRIC RADIATION DOSE MONITORING AND CONTROL
    10.
    发明申请
    CHARGED PARTICLE TOMOGRAPHY SCANNER FOR REAL-TIME VOLUMETRIC RADIATION DOSE MONITORING AND CONTROL 审中-公开
    用于实时体积辐射剂量监测和控制的充电粒子扫描仪

    公开(公告)号:US20150246244A1

    公开(公告)日:2015-09-03

    申请号:US14634808

    申请日:2015-02-28

    IPC分类号: A61N5/10 A61B6/00 A61B6/02

    摘要: In one aspect, a charged particle tomography and radiation therapy system includes a charged particle tomography scanner (CPTS) unit to detect at least some of the charged particles of an emitted charged particle beam delivered to a region of interest of a subject. A processing unit can determine energy loss of the charged particle beam based on the detected trajectory information. An incoming detector is positioned to detect trajectory information of the at least some of the charged particles entering the subject. An outgoing detector is positioned to detect trajectory information of the at least some of the charged particles passing through and exiting the subject. A motion control unit can control movement of the incoming and outgoing detectors. The incoming and outgoing detectors are sized to cover at least an area substantially equivalent to the beam's cross-section. The processing unit can map radiation dose of the region of interest.

    摘要翻译: 一方面,带电粒子断层摄影和放射治疗系统包括带电粒子层析成像扫描仪(CPTS)单元,用于检测传送到受试者感兴趣区域的发射的带电粒子束的至少一些带电粒子。 处理单元可以基于检测到的轨迹信息来确定带电粒子束的能量损失。 入射检测器被定位成检测进入受试者的至少一些带电粒子的轨迹信息。 定位输出检测器以检测穿过和离开受试者的至少一些带电粒子的轨迹信息。 运动控制单元可以控制进出检测器的移动。 输入和输出检测器的尺寸被确定为至少覆盖基本上等于梁的横截面的面积。 处理单元可以映射感兴趣区域的辐射剂量。