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1. 发明授权

US11474048B2 Distance and direction-sensitive cosmogenic neutron sensors 有权
公开(公告)号：US11474048B2
公开(公告)日：2022-10-18
申请号：US17307827
申请日：2021-05-04
申请人： QUAESTA INSTRUMENTS, LLC
发明人： Marek Zreda , Steven Hamann , Martin Schrön , Markus Köhli
IPC分类号： G01N23/05 , G01N23/02 , G01T3/00 , G01N33/24 , G01T7/00
摘要： A wide area cosmogenic neutron sensor is used for detecting moisture within a measurement surface. A neutron detector is positioned on a stand structure holding the detector above a measurement surface. A moderator material and neutron shield are positioned around at least a portion of the neutron detector. The neutron shield substantially covers an entirety of a bottom of the neutron detector and is not positioned on a top side of the neutron detector. Wide area cosmogenic neutrons propagating from the measurement surface travel through an air space before arriving at the moderated neutron detector.

2. 发明申请

US20210131981A1 NON-DESTRUCTIVE INSPECTION METHOD 有权
公开(公告)号：US20210131981A1
公开(公告)日：2021-05-06
申请号：US17041963
申请日：2018-09-27
申请人： Topcon Corporation , RIKEN
发明人： Yuichi YOSHIMURA , Maki MIZUTA , Hideyuki SUNAGA , Yoshie OTAKE
IPC分类号： G01N23/05 , G01N33/38 , G01N23/02 , G01N23/09
摘要： The non-destructive inspection method includes: a water absorbing or drying step of changing a water-content state of a test piece; a transmission image capturing step of irradiating, with a radiation, the test piece absorbed water or dried for a predetermined time in the water absorbing or drying step and capturing a transmission image created by visualizing the radiation transmitted through the test piece; and an evaluation step of evaluating the test piece on the basis of the water-content state of the test piece determined from the transmission image captured in the transmission image capturing step.

3. 发明授权

US10473597B2 Neutron grid, neutron grid stack, neutron grid device, and method of manufacturing neutron grid 有权
公开(公告)号：US10473597B2
公开(公告)日：2019-11-12
申请号：US16139281
申请日：2018-09-24
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.
发明人： Yukihiro Fukuta , Yoshitaka Adachi , Nobuaki Nakashima , Koichi Nittoh
IPC分类号： G01N23/06 , G01T3/00 , G01T1/29 , G01T7/00 , G01N23/09 , G01N23/05
摘要： A neutron grid, comprises: a grid including: a plurality of spacers through which at least a part of first neutrons from a target passes; and a plurality of absorbers to absorb at least a part of second neutrons scattered thorough the target, the spacers and the absorbers being alternately arranged along a first direction and extending along a second direction intersecting with the first direction; and a pair of covers through which at least a part of the first neutrons and at least a part of the second neutrons pass, sandwiching the grid along a third direction intersecting with the first and second directions. A thermal expansion coefficient difference between one of the spacers and one of the absorbers is ±9×10−6/° C. or less, or Young's modulus of the spacer is 100 GPa or more.

4. 发明申请

US20190094157A1 DEVICE AND METHOD FOR ANALYSIS OF MATERIAL BY NEUTRON INTERROGATION 审中-公开
公开(公告)号：US20190094157A1
公开(公告)日：2019-03-28
申请号：US16112369
申请日：2018-08-24
申请人： SODERN
发明人： Adrien Cheminet
IPC分类号： G01N23/05 , G01V5/00 , G01N23/20066
CPC分类号： G01N23/05 , G01N23/046 , G01N23/20 , G01N23/20066 , G01N23/2208 , G01N23/222 , G01N2223/0745 , G01N2223/419 , G01V5/0016 , G01V5/0025 , G01V5/0069
摘要： Material analysis device (100) comprising a neutron generator (10) for emitting neutrons towards a material to be analysed in pulsed mode; an alpha particle detector (13) for locating the neutrons emitted in a given solid angle by detecting alpha particles associated with these neutrons; at least one gamma ray detector (14) for measuring energy of gamma photons generated by interaction of the neutrons emitted in the given solid angle with the material to be analysed; at least two Compton cameras (15), each for measuring energy of the gamma photons generated by interaction of the neutrons with the material to be analysed and for calculating an incidence cone of these gamma photos; and an electronic circuit adapted for three-dimensionally mapping the presence of at least one chemical element of interest in the material to be analysed based on data provided by the alpha particle detector (13), the gamma ray detector (14) and the Compton cameras (15).

5. 发明授权

US09316760B2 Mobile aircraft inspection system 有权
公开(公告)号：US09316760B2
公开(公告)日：2016-04-19
申请号：US14312552
申请日：2014-06-23
申请人： Rapiscan Systems, Inc.
发明人： Joseph Bendahan
IPC分类号： G01V5/00 , G01N23/203 , H05G1/02 , G01N23/04 , G01N23/083 , G03B42/02 , G01N23/05
CPC分类号： G01V5/0066 , G01N23/04 , G01N23/05 , G01N23/083 , G01N23/203 , G01V5/0008 , G01V5/0016 , G01V5/0025 , G03B42/028 , H05G1/02
摘要： A system for scanning aircraft for concealed threats is provided. The system comprises a vehicle and a manipulator arm attached with a scanning head that can be maneuvered in multiple directions to completely scan an aircraft from the outside. The system uses transmission based X-ray detection, backscatter based X-ray detection or a combination thereof, in various embodiments. The system also includes gamma-ray and neutron detectors, for detection of nuclear and radioactive materials.

6. 发明授权

US09201025B2 Absolute nuclear material assay using count distribution (LAMBDA) space 有权
标题翻译：使用计数分布（LAMBDA）空间的绝对核材料测定
公开(公告)号：US09201025B2
公开(公告)日：2015-12-01
申请号：US13456032
申请日：2012-04-25
申请人： Manoj K. Prasad , Neal J. Snyderman , Mark S. Rowland
发明人： Manoj K. Prasad , Neal J. Snyderman , Mark S. Rowland
IPC分类号： G01N23/05 , G01N23/00 , G01T3/00
CPC分类号： G01N23/005 , G01T3/00
摘要： A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.
摘要翻译：一种未知来源的绝对核材料测定方法，包括从未知来源计算中子，并使用模型提供绝对核材料测定，以与测量的计数分布进行最佳比较。在一个实施方案中，提供绝对核材料测定的步骤包括利用分析计算的裂变链分布的随机抽样，以通过在时间上扩散裂变链分布来产生事件计数的连续时间演化序列。

7. 发明申请

US20120286164A1 METHOD AND APPARATUS FOR PERFORMING ACTIVE NEUTRON INTERROGATION OF CONTAINTERS 有权
标题翻译：用于执行容器的主动中子插入的方法和装置
公开(公告)号：US20120286164A1
公开(公告)日：2012-11-15
申请号：US13515487
申请日：2010-12-14
申请人： Gregory Piefer
发明人： Gregory Piefer
IPC分类号： G01N23/05
CPC分类号： H05H3/06 , G01V5/0091
摘要： An apparatus for inspecting the contents of a cargo container includes a neutron source having an ion source configured to provide deuterium or tritium ions and an accelerator configured to accelerate the ions toward a target having at least one of deuterium or tritium. The apparatus further includes a radiation detector where the neutron source is configured to deliver a neutron flux into the container and the radiation detector is configured to detect radiation exiting the container subsequent to the delivery of the neutron flux into the container.
摘要翻译：用于检查货物集装箱的内容物的装置包括具有配置成提供氘或氚离子的离子源的中子源和被配置为将离子朝向具有氘或氚中的至少一种的靶的加速器。该装置还包括辐射检测器，其中中子源被配置为将中子通量输送到容器中，并且辐射检测器被配置为在将中子通量输送到容器中之后检测离开容器的辐射。

8. 发明申请

US20100254514A1 DETECTION OF X-RAY SCATTERING 有权
标题翻译：检测X射线散射
公开(公告)号：US20100254514A1
公开(公告)日：2010-10-07
申请号：US12602760
申请日：2008-06-02
申请人： Paul Evans , Keith Rogers
发明人： Paul Evans , Keith Rogers
IPC分类号： G01N23/201 , G21K1/02 , G01N23/05
CPC分类号： G21K1/02 , G21K1/025
摘要： A radiation detecting apparatus includes a collimator and a detector, the collimator having a material for blocking radiation and a region that is a sector of an annulus or multiple regions in a configuration in the shape of a sector of an annulus for allowing transmission of the radiation. The detector is spaced a distance from the collimator such that when a radiation source and sample crystal material are positioned at suitable positions, the radiation is collimated by the collimator and contacts the sample a predetermined distance from the detector at multiple of locations corresponding to the region or regions of the collimator. The Bragg diffracted radiation from the crystal material at two or more and preferably all of the locations overlap at the detector.
摘要翻译：辐射检测装置包括准直器和检测器，准直器具有用于阻挡辐射的材料，以及作为环形部分形状的环形或多个区域的区域的区域，用于允许放射线的传播。检测器与准直器隔开一段距离，使得当辐射源和样品晶体材料位于合适的位置时，辐射被准直器准直并且在对应于该区域的多个位置处与检测器接触预定距离的检测器或准直仪的区域。在两个或更多且优选地所有位置处的晶体材料的布拉格衍射辐射在检测器处重叠。

9. 发明授权

US07551714B2 Combined X-ray CT/neutron material identification system 失效
标题翻译：组合X射线CT /中子材料识别系统
公开(公告)号：US07551714B2
公开(公告)日：2009-06-23
申请号：US11741191
申请日：2007-04-27
申请人： Peter J. Rothschild
发明人： Peter J. Rothschild
IPC分类号： G01N23/222 , G01N23/05 , G01N23/083 , G01N23/09 , G01N23/10 , H05G1/60
CPC分类号： G01N23/046 , G01N23/223 , G01N2223/076 , G01N2223/419 , G01T1/2985 , G01V5/0033 , G01V5/005 , G01V5/0069
摘要： A system and methods for identifying contents of an enclosure such as an air cargo container. A three-dimensional image indicative of at least one of the CT number and the density of contents of the enclosure is obtained using penetrating radiation such as x-rays. If one or more suspect regions are identified among contents of the enclosure, a collimated neutron beam is activated to traverse each suspect region and fluorescent emission from the suspect region is detected, allowing material within the suspect region to be characterized based at least on the detected fluorescent emission. Additionally, the collimated neutron beam may be employed for neutron imaging of the contents of the enclosure.
摘要翻译：用于识别诸如空运货物集装箱的外壳的内容物的系统和方法。使用诸如x射线的穿透辐射获得指示外壳的CT数量和内容物密度中的至少一个的三维图像。如果在外壳的内容中识别出一个或多个可疑区域，则激活准直的中子束以遍历每个可疑区域，并且检测来自可疑区域的荧光发射，从而至少基于所检测到的材料来区分可疑区域内的材料荧光发射。另外，准直的中子束可用于对外壳的内容物进行中子成像。

10. 发明授权

US07049603B2 Neutron source detection camera 失效
标题翻译：中子源检测摄像机
公开(公告)号：US07049603B2
公开(公告)日：2006-05-23
申请号：US10899411
申请日：2004-07-26
申请人： Charles Jeffrey Martoff
发明人： Charles Jeffrey Martoff
IPC分类号： G01N23/05
CPC分类号： G01T3/00 , G01T1/2935
摘要： A neutron imaging method for obtaining an image of the general shape of a neutron emitting source and a bearing of the source relative to an apparatus comprising a chamber comprising a gas with a high probability of interacting with low energy neutrons, releasing collision products that maintain the neutron momentum, and generating ionization particles. The chamber comprises an electrode for providing an electronic signal indicative of the impact location of ionization particles on the electrode and a field to drift the ionization particles to the electrode. A readout indicates the location and time of impact of each ionization particle on the electrode; a memory stores a plurality of the electronic signals; and a computer receives and analyzes the signals and impact times and indicates the location of the source of neutrons by using back projection algorithms to calculate three-dimensional vectors indicative of the neutron path directions.
摘要翻译：一种中子成像方法，用于获得中子发射源的一般形状和相对于包括具有与低能中子相互作用的高概率的气体的室的装置的图像，释放出保持中子动量，产生电离粒子。该室包括用于提供电子信号的电极，该电子信号指示电离颗粒在电极上的冲击位置以及将电离粒子漂移到电极的场。读数表示每个电离粒子对电极的影响的位置和时间; 存储器存储多个电子信号; 并且计算机接收并分析信号和冲击时间，并通过使用反投影算法来计算指示中子路径方向的三维向量来指示中子源的位置。

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