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1. 发明申请

WO2015160398A3 SYSTEM AND METHOD FOR ANALYSIS OF FISSIONABLE MATERIALS BY MULTISPECTRAL ACTIVE NEUTRON INTERROGATION ANALYSIS 审中-公开
标题翻译：通过多中心主动中子插值分析分析不确定材料的系统与方法
公开(公告)号：WO2015160398A3
公开(公告)日：2015-12-17
申请号：PCT/US2015011700
申请日：2015-01-16
申请人： UNIV FLORIDA
发明人： JORDAN KELLY A , LEWIS JASON M
IPC分类号： G01T3/00
CPC分类号： G01V5/0091
摘要： The detection and assay of fissionable material is carried out on a container known or suspected to have a material with at least one fissionable isotope. The material is irradiated with neutrons from two or more different neutron sources. The fission rates inducted at each irradiation energy are acquired with at least one neutron detector. A multispectral active neutron interrogation analysis (MANIA) is carried out to compare the detected fission rates of the neutron spectra with calculated fission rates where an iterative algorithm is carried out on a system of linear equations to solve for the isotopic composition of one or more isotopes to determine the presence, identity, and quantities of fissionable isotopes in said container.
摘要翻译：可裂变材料的检测和测定在已知或怀疑具有至少一种可裂变同位素的材料的容器上进行。材料用来自两个或更多个不同中子源的中子照射。用至少一个中子检测器获取在每个照射能下引入的裂变速率。进行多光谱活性中子询问分析（MANIA）以将所检测到的中子谱的裂变率与计算的裂变率进行比较，其中对线性方程组进行迭代算法以求解一种或多种同位素的同位素组成以确定所述容器中的可裂变同位素的存在，身份和数量。

2. 发明申请

WO2014145460A1 METHOD AND APPARATUS FOR DETECTION OF RADIOACTIVE ISOTOPES 审中-公开
标题翻译：用于检测放射性同位素的方法和装置
公开(公告)号：WO2014145460A1
公开(公告)日：2014-09-18
申请号：PCT/US2014/030230
申请日：2014-03-17
申请人： H.LEE MOFFITT CANCER CENTER AND RESEARCH INSTITUTE
发明人： FORSTER, Kenneth, M.
IPC分类号： G01T1/167 , G01T7/00 , G01V5/00
CPC分类号： G01T1/167 , G01T1/17 , G01T1/20 , G01T1/36 , G01T3/00 , G01V5/0091
摘要： Embodiments of the invention relate to a method and apparatus for detecting an isotope. Specific embodiments can detect radioactive isotopes. Embodiments of the invention can utilize a detector that incorporates at least two sub-detectors. Each sub-detector can receive energy from an isotope and create a signal corresponding to the received energy. Each sub-detector can incorporate a detector element, such as a detector element incorporating one or more diodes, a detector element incorporating a crystal, a detector element incorporating a solid-state device, or a detector element incorporating a scintillator. The sub-detectors can be configured such that for each isotope to be detected at least two of the sub-detectors produce different output signals, or readings. In a specific embodiment, each sub-detector is configured such that when there are at least two sub- detectors exposed to the isotope each of the corresponding readings from the sub-detectors are different from each of the other readings. The different readings of the sub-detectors for the same isotope can be due to a filter being placed between the isotope being detected and one of the sub-detector's detector element; due to using detector elements with different detector materials, different detector designs, or other detector element differences; or other differences that produce different readings for the same radioactive isotope.
摘要翻译：本发明的实施例涉及一种用于检测同位素的方法和装置。具体实施方案可以检测放射性同位素。本发明的实施例可以利用包含至少两个子检测器的检测器。每个子检测器可以从同位素接收能量并产生对应于接收能量的信号。每个子检测器可以结合检测器元件，例如包含一个或多个二极管的检测器元件，结合有晶体的检测器元件，结合有固态器件的检测器元件，或包含闪烁体的检测器元件。子检测器可以被配置为使得要检测的每个同位素至少两个子检测器产生不同的输出信号或读数。在具体实施例中，每个子检测器被配置为使得当存在暴露于同位素的至少两个子检测器时，来自子检测器的每个相应读数与每个其它读数不同。用于同一同位素的子检测器的不同读数可归因于过滤器被放置在被检测的同位素和子检测器的检测器元件之一之间; 由于使用具有不同检测器材料的检测器元件，不同的检测器设计或其他检测器元件差异; 或对同一放射性同位素产生不同读数的其他差异。

3. 发明申请

WO2013019247A1 NOBLE GAS DETECTOR FOR FISSILE CONTENT DETERMINATION 审中-公开
标题翻译：用于不确定内容确定的气体探测器
公开(公告)号：WO2013019247A1
公开(公告)日：2013-02-07
申请号：PCT/US2011/046974
申请日：2011-08-08
申请人： RAYTHEON COMPANY , ARKTIS RADIATION DETECTORS LTD. , CHANDRASEKHARAN, Rico, S. , HYNES, Michael, V. , FLECHTNER, Donald, D.
发明人： CHANDRASEKHARAN, Rico, S. , HYNES, Michael, V. , FLECHTNER, Donald, D.
IPC分类号： G01T3/00 , G01V5/00
CPC分类号： G01T3/001 , G01V5/0091
摘要： A method and a system for fissile content measurement that utilizes a detector configured to detect fast neutrons. An external radiation source may be used to induce fission in a sample to allow the measurement of a fissile material of the sample with a low spontaneous fission probability. Analyzing the sample may be based on the energy spectrum of emitted neutrons. That is, the energy information regarding the energy of the fast neutrons is obtained, and the fast neutrons as having a high likelihood of originating in a nuclear fission process as opposed to originating in an (alpha,n) reaction by utilizing the obtained energy information are classified to analyze the sample. Alternatively, a position of interaction in the detector of neutron emitted by the sample is measured, and this position is retraced back through intervening material(s) between the detector and the sample to determine the spacial geometry of the sample.
摘要翻译：利用被配置为检测快中子的检测器的裂变内容测量的方法和系统。可以使用外部辐射源来诱导样品中的裂变，以允许以低自发裂变概率测量样品的易裂变材料。分析样品可能是基于发射中子的能谱。也就是说，获得关于快中子的能量的能量信息，并且快中子具有源于核裂变过程的高可能性，而不是通过利用获得的能量信息而产生（α，n）反应被分类以分析样品。或者，测量由样品发射的中子检测器中的相互作用位置，并且该位置通过检测器和样品之间的中间材料回溯以确定样品的空间几何形状。

4. 发明申请

WO2012048274A3 METHOD AND APPARATUS FOR DETECTION OF RADIOACTIVE ISOTOPES 审中-公开
标题翻译：用于检测放射性同位素的方法和装置
公开(公告)号：WO2012048274A3
公开(公告)日：2012-07-12
申请号：PCT/US2011055450
申请日：2011-10-07
申请人： H LEE MOFFITT CANCER CT & RES , FORSTER KENNETH
发明人： FORSTER KENNETH
IPC分类号： G01T1/16 , G01T7/00
CPC分类号： G01T1/167 , G01T1/17 , G01T1/20 , G01T1/36 , G01T3/00 , G01V5/0091
摘要： Embodiments of the invention relate to a method and apparatus for detecting an isotope. Specific embodiments can detect radioactive isotopes. Embodiments of the invention can utilize a detector that incorporates at least two sub-detectors. Each sub-detector can receive energy from an isotope and create a signal corresponding to the received energy. Each sub-detector can incorporate a detector element, such as a detector element incorporating one or more diodes, a detector element incorporating a crystal, a detector element incorporating a solid-state device, or a detector element incorporating a scintillator. The sub-detectors can be configured such that for each isotope to be detected at least two of the sub-detectors produce different output signals, or readings. In a specific embodiment, each sub-detector is configured such that when there are at least two sub- detectors exposed to the isotope each of the corresponding readings from the sub-detectors are different from each of the other readings. The different readings of the sub-detectors for the same isotope can be due to a filter being placed between the isotope being detected and one of the sub-detector's detector element; due to using detector elements with different detector materials, different detector designs, or other detector element differences; or other differences that produce different readings for the same radioactive isotope.
摘要翻译：本发明的实施例涉及一种用于检测同位素的方法和装置。具体实施方案可以检测放射性同位素。本发明的实施例可以利用包含至少两个子检测器的检测器。每个子检测器可以从同位素接收能量并产生对应于接收能量的信号。每个子检测器可以结合检测器元件，例如包含一个或多个二极管的检测器元件，结合有晶体的检测器元件，结合有固态器件的检测器元件，或包含闪烁体的检测器元件。子检测器可以被配置为使得要检测的每个同位素至少两个子检测器产生不同的输出信号或读数。在具体实施例中，每个子检测器被配置为使得当存在暴露于同位素的至少两个子检测器时，来自子检测器的每个相应读数与每个其它读数不同。用于同一同位素的子检测器的不同读数可归因于过滤器被放置在被检测的同位素和子检测器的检测器元件之一之间; 由于使用具有不同检测器材料的检测器元件，不同的检测器设计或其他检测器元件差异; 或对同一放射性同位素产生不同读数的其他差异。

5. 发明申请

WO2011147427A1 DETECTOR AND METHOD FOR DETECTING NEUTRONS 审中-公开
标题翻译：用于检测中子的检测器和方法
公开(公告)号：WO2011147427A1
公开(公告)日：2011-12-01
申请号：PCT/EP2010/003184
申请日：2010-05-26
申请人： UNIVERSITÄT DUISBURG-ESSEN , MUKHERJEE, Bhaskar , LAMBERT, Jamil , HENTSCHEL, Reinhard , FARR, Jonathan
发明人： MUKHERJEE, Bhaskar , LAMBERT, Jamil , HENTSCHEL, Reinhard , FARR, Jonathan
IPC分类号： G01T3/00
CPC分类号： G01T3/00 , G01T3/06 , G01V5/0091
摘要： The invention relates to a neutron detector comprising a first (3a) and a second (3b) sensor device, both being sensitive to gamma rays, the first sensor device (3a) being covered with Gadolinium (5), the covered first sensor device (3a) and the second sensor device (3b) each being placed in a housing (2) consisting of or at least comprising a gamma ray attenuating material, in particular lead, the housings (2) of both sensor devices (3a, 3b) being positioned adjacent to each other in a bulk, in particular the middle of a bulk of a neutron moderating material (1). The invention furthermore relates to a method of detecting neutrons emerging from an area of interest to a neutron detector, in particular a detector according to any one of the preceding claims, comprising the steps of decelerating the neutrons to thermal energy by means of a moderator material (1), attenuating the gamma rays emitted by the moderator material (1) during the deceleration, in particular by means of lead, irradiating a first and a second sensor device (3a, 3b) which are both sensitive to gamma rays with the attenuated gamma rays, capturing the thermalised/decelerated neutrons with Gadolinium (5) and producing gamma rays in a neutron-Gadolinium-interaction, irradiating only the first sensor device (3a) and preventing irradiating of the second sensor device (3b) with the gamma rays produced in Gadolinium (5), reading a signal proportional to the received total fluence of gamma rays from both sensor devices (3a, 3b).
摘要翻译：本发明涉及一种中子探测器，其包括对γ射线敏感的第一（3a）和第二（3b）传感器装置，第一传感器装置（3a）被钆（5）覆盖，被覆盖的第一传感器装置 3a）和第二传感器装置（3b）各自被放置在由两个传感器装置（3a，3b）的壳体（2）组成或至少包括伽马射线衰减材料（特别是引线）的壳体（2）中，所述壳体以大块形式彼此相邻地定位，特别是大部分中子调节材料（1）的中间。本发明还涉及一种检测从感兴趣区域出射的中子到中子检测器的方法，特别是根据前述权利要求中任一项所述的检测器，包括以下步骤：通过减速器材料将中子减速到热能（1），在减速期间，特别是通过铅的衰减由减速材料（1）发射的伽马射线，照射对γ射线敏感的第一和第二传感器装置（3a，3b）伽马射线，用钆（5）捕获热化/减速中子并在中子 - 钆相互作用中产生γ射线，仅照射第一传感器装置（3a）并且防止第二传感器装置（3b）用γ射线照射在钆（5）中产生，读取与来自两个传感器装置（3a，3b）的伽马射线的接收总能量成比例的信号。

6. 发明申请

WO2009150416A2 PHOTOMULTIPLIER AND DETECTION SYSTEMS 审中-公开
标题翻译：照相机和检测系统
公开(公告)号：WO2009150416A2
公开(公告)日：2009-12-17
申请号：PCT/GB2009/001444
申请日：2009-06-11
申请人： RAPISCAN SECURITY PRODUCTS, INC. , MORTON, Edward, James
发明人： MORTON, Edward, James
IPC分类号： H01J43/00
CPC分类号： H01J43/30 , G01T1/16 , G01T1/167 , G01T1/208 , G01T3/06 , G01V5/0025 , G01V5/0091 , H01J40/04 , H01J43/08 , H01J43/18
摘要： The invention provides a switchable photomultiplier switchable between a detecting state and a non-detecting state comprising a cathode upon which incident radiation is arranged to impinge. The photomultiplier also comprises a series of dynodes arranged to amplify a current created at the cathode upon detection of photoradiation. A first dynode of the series is operatively closest to the cathode and is at a first potential and the electrical potential of the cathode is switchable between a second potential, below the first potential, when the photomultiplier is in the detecting state and a third potential, above the second potential, when the photomultiplier is in the non-detecting state. The invention also provides a detection system arranged to detect radiation-emitting material in an object. The system comprises a detector switchable between a detecting state in which the detector is arranged to detect radiation and a non-detecting state in which the detector is arranged to not detect radiation. The system further comprises a controller arranged to control switching of the detector between the states such that the detector is switched to the non-detecting state whilst an external radiation source is irradiating the object.
摘要翻译：本发明提供了一种可切换的光电倍增器，其可在检测状态和非检测状态之间切换，包括阴极，入射辐射布置在阴极上。光电倍增管还包括一系列倍增电极，其布置成在检测到光辐射时放大阴极产生的电流。该系列的第一倍增极操作地最接近阴极并且处于第一电位，并且当光电倍增管处于检测状态时，阴极的电位可在第一电位低于第二电位和第三电位之间切换，高于第二电位，当光电倍增管处于非检测状态时。本发明还提供了一种检测系统，用于检测物体中的辐射发射材料。该系统包括可在检测器被布置成检测辐射的检测状态和检测器被布置为不检测辐射的非检测状态之间切换的检测器。该系统还包括控制器，其被布置成控制检测器在状态之间的切换，使得当外部辐射源照射物体时检测器切换到非检测状态。

7. 发明申请

WO2009035895A3 NON-INTRUSIVE METHOD TO IDENTIFY PRESENCE OF NUCLEAR MATERIALS USING ENERGETIC PROMPT NEUTRONS FROM NEUTRON-INDUCED FISSION 审中-公开
标题翻译：使用来自中性诱发电位的能量提取中子鉴定核材料存在的非侵入性方法
公开(公告)号：WO2009035895A3
公开(公告)日：2009-06-04
申请号：PCT/US2008075195
申请日：2008-09-04
申请人： PASSPORT SYSTEMS INC , BERTOZZI WILLIAM , LEDOUX ROBERT J
发明人： BERTOZZI WILLIAM , LEDOUX ROBERT J
IPC分类号： G01N23/00
CPC分类号： G01T3/00 , G01V5/0069 , G01V5/0091
摘要： Methods and systems for non-intrusively detecting the existence of fissile materials in a container via the measurement of energetic prompt neutrons are disclosed. The methods and systems use the unique nature of the prompt neutron energy spectrum from neutron-induced fission arising from the emission of neutrons from almost fully accelerated fragments to unambiguously identify fissile material. These signals from neutron-induced fission are unique and allow the detection of any material in the actinide region of the nuclear periodic table.
摘要翻译：公开了通过测量能量迅速的中子非侵入地检测容器中易裂变材料的存在的方法和系统。这些方法和系统使用了从发生几乎完全加速的碎片的中子产生的中子诱发的裂变的迅速中子能谱的独特性质，以明确地识别易裂变材料。来自中子诱导的裂变的这些信号是独特的，并允许检测核周期表的锕系区域中的任何物质。

8. 发明申请

WO2008091400A2 METHOD AND SYSTEM FOR SPECIAL NUCLEAR MATERIAL DETECTION 审中-公开
标题翻译：特殊核材料检测方法与系统
公开(公告)号：WO2008091400A2
公开(公告)日：2008-07-31
申请号：PCT/US2007/077813
申请日：2007-09-07
申请人： GENERAL ELECTRIC COMPANY , CLAUS, Bernhard, Eric Hermann , EBERHARD, Jeffrey, Wayne
发明人： CLAUS, Bernhard, Eric Hermann , EBERHARD, Jeffrey, Wayne
CPC分类号： G01V5/0091
摘要： A method of analyzing a container for presence of special nuclear materials (SNM) is disclosed. The method includes obtaining information regarding at least one of the container and contents therein, automatically selecting an operational parameter in response to the information; and, performing a screening of the container according to the selected operational parameter. The screening includes irradiating the container with an energetic beam comprising at least one of fast neutrons and high-energy photons; detecting energy emitted in response to the irradiating; and analyzing the detected energy for a presence of SNM.
摘要翻译：公开了一种分析特殊核材料（SNM）存在的容器的方法。所述方法包括获取关于所述容器和内容中的至少一个的信息，响应于所述信息自动选择操作参数; 以及根据所选择的操作参数对容器进行筛选。筛选包括用包含快中子和高能光子中的至少一种的能量束照射容器; 检测响应于照射而发射的能量; 并分析检测到的能量以存在SNM。

9. 发明申请

WO2006073442A3 DETECTION OF NUCLEAR WEAPONS AND FISSILE MATERIAL ABOARD CARGO CONTAINERSHIPS 审中-公开
标题翻译：检测核武器和非物质物资货物集装箱
公开(公告)号：WO2006073442A3
公开(公告)日：2007-03-01
申请号：PCT/US2005014191
申请日：2005-04-25
申请人： MASSACHUSETTS INST TECHNOLOGY , GALLAGHER SHAWN P , LANZA RICHARD C
发明人： GALLAGHER SHAWN P , LANZA RICHARD C
IPC分类号： G01N33/487 , C12Q1/00
CPC分类号： G01V5/0091 , G01T1/167 , G01T3/00
摘要： A radiation detection system that measures radiation (e.g., signature energy-level gamma radiation and neutrons) is employed aboard a ship or other transport vehicle along with conventional cargo to monitor for the presence of a fissile material, as would be found in a nuclear weapon, or for the presence of other sources of radiation. The detection system can be used over the course of the cargo transport, thereby enabling finely tuned monitoring for fissile material across distances of many meters extending through surrounding cargo containers. Because the system can be utilized during a ship's transport, a positive detection of fissile material can be made and acted upon while the ship is still at sea far from the destination port, where detonation of a nuclear weapon could have catastrophic consequences.
摘要翻译：在常规货物上搭载船舶或其他运输工具的辐射检测系统（如签名能量级γ辐射和中子），以便监测是否存在易裂变材料，如在核武器，或存在其他辐射源。检测系统可以在货物运输过程中使用，从而可以对跨越周围货物集装箱的许多米的距离进行细微的监测。由于该系统可以在船舶运输过程中得到利用，因此当船舶仍然远离目的地港口时，能够对易裂变材料进行积极的检测，并且在核武器的爆炸可能产生灾难性后果的情况下进行。

10. 发明申请

WO2005015152A2 REMOTE SENSING DEVICE TO DETECT MATERIALS OF VARYING ATOMIC NUMBERS 审中-公开
标题翻译：用于检测变化原子数的材料的远程感测装置
公开(公告)号：WO2005015152A2
公开(公告)日：2005-02-17
申请号：PCT/US2003/034063
申请日：2003-10-27
申请人： COLE, Philip, L.
发明人： COLE, Philip, L.
IPC分类号： G01N
CPC分类号： G01T3/00 , G01N23/223 , G01N2223/076 , G01V5/0091
摘要： A remote sensing device for detecting materials of varying atomic numbers and systems and methods relating thereto. A system for identifying a material includes a photon beam flux monitor for resolving a high-energy beam. A method for identifying a material includes casting an incident photon beam on the material and detecting an emerging photon beam with an array of fission-fragment detectors, a first set of scintillator paddles, and a second set of scintillator paddles.
摘要翻译：用于检测不同原子序号的材料的遥感装置和与之相关的系统和方法。用于识别材料的系统包括用于分辨高能束的光子束通量监视器。一种用于识别材料的方法包括将入射光子束投射在材料上，并用裂变片段检测器阵列，第一组闪烁器桨片和第二组闪烁器桨叶阵列检测新出现的光子束。

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