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公开(公告)号：US08624198B2
公开(公告)日：2014-01-07
申请号：US12579894
申请日：2009-10-15
摘要： A neutron detection system comprising a radiation portal monitor is disclosed. The radiation portal monitor includes a neutron moderator sheet and a neutron-sensing panel and is configured to receive incoming neutrons through a neutron collection portal area. The neutron-sensing panel comprises a neutron-sensing material optically coupled to a plurality of optical fibers such that the neutron moderator sheet and the neutron-sensing panel are disposed substantially parallel to the neutron collection portal area.
摘要翻译： 公开了一种包括辐射门禁监视器的中子检测系统。 辐射门禁监视器包括中子调节器片和中子感测面板，并且被配置为通过中子收集门禁区域接收进入的中子。 中子感测面板包括光学耦合到多个光纤的中子感测材料，使得中子调节剂片和中子感测面板基本上平行于中子收集入口区域设置。
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2.发明授权Spectroscopic fast neutron detection and discrimination using Li-Based semiconductors 有权使用Li-based半导体的光谱快中子检测和鉴别公开(公告)号：US08044358B2
公开(公告)日：2011-10-25
申请号：US12491704
申请日：2009-06-25
IPC分类号： G01T3/08
CPC分类号： G01T3/085 , H01L31/08 , H01L31/115
摘要： A neutron sensing material detector includes an anode; a cathode; and a semiconductor material disposed between the anode and the cathode. An electric field is applied between the anode and cathode. The semiconductor material is composed of a ternary composition of stoichiometry LiM2+GV and exhibits an antifluorite-type ordering, where the stoichiometric fractions are Li=1, M2+=1, and GV=1. Electron-hole pairs are created by absorption of radiation, and the electron-hole pairs are detected by the current they generate between the anode and the cathode. The anode may include an array of pixels to provide improved spatial and energy resolution over the face of the anode. The signal value for each pixel can be mapped to a color or grey scale normalized to all the other pixel signal values for a particular moment in time. A guard ring or guard grid may be provided to reduce leakage current.
摘要翻译： 中子感测材料检测器包括阳极; 阴极 以及设置在阳极和阴极之间的半导体材料。 在阳极和阴极之间施加电场。 半导体材料由化学计量LiM2 + GV的三元组成组成，呈现出萤石型排序，化学计量分数为Li = 1，M2 + = 1，GV = 1。 通过吸收辐射产生电子 - 空穴对，并且通过它们在阳极和阴极之间产生的电流来检测电子 - 空穴对。 阳极可以包括像素阵列，以在阳极的表面上提供改善的空间和能量分辨率。 每个像素的信号值可以映射到对于特定时刻的所有其他像素信号值进行归一化的颜色或灰度。 可以提供保护环或保护栅，以减少泄漏电流。
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3.发明申请公开(公告)号：US20100276602A1
公开(公告)日：2010-11-04
申请号：US12781206
申请日：2010-05-17
IPC分类号： G01T1/20
摘要： A radiation detector includes a neutron sensing element comprising a neutron scintillating composite material that emits a first photon having a first wavelength and an optical waveguide material having a wavelength-shifting dopant dispersed therein that absorbs the first photon emitted by the neutron scintillating composite material and emits a second photon having a second, different wavelength, and a functionalized reflective layer at an interface between the neutron scintillating composite material and the optical waveguide material. The functionalized reflective layer allows the first photon emitted by the neutron scintillating composite material to pass through and into the optical waveguide material, but prevents the second photon emitted by the optical waveguide material from passing through and into the neutron scintillating composite material. The photons emitted from the neutron sensing element are collected and channeled through the optical waveguide material and into a photosensing element optically coupled to the neutron sensing element.
摘要翻译： 辐射检测器包括中子感测元件，其包括发射具有第一波长的第一光子的中子闪烁复合材料和分散在其中的波长迁移掺杂剂的光波导材料，其吸收由中子闪烁复合材料发射的第一光子并发射 具有第二不同波长的第二光子和在中子闪烁复合材料和光波导材料之间的界面处的官能化反射层。 功能化反射层允许由中子闪烁复合材料发射的第一光子通过并进入光波导材料，但是防止由光波导材料发射的第二光子通过并进入中子闪烁复合材料。 从中子感测元件发射的光子被收集并引导通过光波导材料并且被光耦合到中子感测元件上的光敏元件。
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4.发明申请INTEGRATED NEUTRON-GAMMA RADIATION DETECTOR WITH OPTICAL WAVEGUIDE AND NEUTRON SCINTILLATING MATERIAL 失效集成的中子 - 伽马辐射检测器，具有光波导和中子扫描材料公开(公告)号：US20100230603A1
公开(公告)日：2010-09-16
申请号：US12781182
申请日：2010-05-17
IPC分类号： G01T1/20
摘要： A radiation detector includes a neutron sensing element having a neutron scintillating material at least partially surrounded by an optical waveguide material; and a photosensing element optically coupled to the neutron sensing element. The photons emitted from the neutron sensing element are collected and channeled through the optical waveguide material and into the photosensing element.
摘要翻译： 辐射检测器包括具有至少部分地被光波导材料包围的中子闪烁材料的中子感测元件; 以及与所述中子感测元件光耦合的感光元件。 从中子感测元件发射的光子被收集并引导通过光波导材料并进入光敏元件。
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5.发明申请公开(公告)号：US20080191140A1
公开(公告)日：2008-08-14
申请号：US11704827
申请日：2007-02-09
申请人： Daniel Bruno McDevitt , Jeffrey Wayne Eberhard , Bernhard Erich Hermann Claus , Scott Stephen Zelakiewicz , Joseph Bendahan
发明人： Daniel Bruno McDevitt , Jeffrey Wayne Eberhard , Bernhard Erich Hermann Claus , Scott Stephen Zelakiewicz , Joseph Bendahan
CPC分类号： G01T3/08 , G01T1/202 , G01T3/06 , G01V5/0091
摘要： Dual modality detection devices and methods are provided for detecting nuclear material, the devices include a neutron detector including multiple neutron detection modules; and a gamma detector including multiple gamma detection modules, where the multiple neutron detection modules and the multiple gamma detection modules are integrated together in a single unit to detect simultaneously both gamma rays and neutrons.
摘要翻译： 提供了用于检测核材料的双重模态检测装置和方法，该装置包括具有多个中子检测模块的中子检测器; 以及包括多个伽马检测模块的伽马检测器，其中多个中子检测模块和多个伽马检测模块以单个单元集成在一起以同时检测伽马射线和中子。
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公开(公告)号：US08178008B2
公开(公告)日：2012-05-15
申请号：US12211894
申请日：2008-09-17
IPC分类号： H01M4/88
CPC分类号： G01T3/00 , H01L31/032 , H01L31/036
摘要： A semiconductor material for radiation absorption and detection comprising a composition of stoichiometry Li(M12+, M22+, M32+, . . . )(G1V, G2V, G3V, . . . ) and exhibiting an antifluorite-type order, where Li=1, (M12++M22++M32++ . . . )=1, and (G1V+G2V+G3V+ . . . )=1. The material provides two useful characteristics: [1] a high Li-site density, which when enriched in 6Li, produces exceptional neutron-absorbing capabilities and [2] a semiconducting band-gap for the efficient conversion of absorbed photon and neutron energies into electrical currents. These characteristics can be exploited in applications for power generation or the spectroscopic detection of gamma and neutron radiation. The material can be tailored so as to detect only gamma photons, detect only neutron particles, or simultaneously detect gamma photons and neutron particles.
摘要翻译： 一种用于辐射吸收和检测的半导体材料，其包含Li（M12 +，M22 +，M32 +，...）（G1V，G2V，G3V，...）的化学计量组成，并显示出耐氟石型次序，其中Li = 1， M12 ++ M22 ++ M32 ++ ...）= 1，（G1V + G2V + G3V + ...）= 1。 该材料提供了两个有用的特征：[1]高Li位密度，当富集6Li时，产生特殊的中子吸收能力和[2]半导体带隙，用于有效地将吸收的光子和中子能转化为电 电流。 这些特性可用于发电或伽马和中子辐射的光谱检测应用。 可以调整材料，以便仅检测伽马光子，仅检测中子粒子，或同时检测伽马光子和中子粒子。
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7.发明授权公开(公告)号：US08314399B2
公开(公告)日：2012-11-20
申请号：US12781206
申请日：2010-05-17
IPC分类号： G01T3/00
摘要： A radiation detector includes a neutron sensing element comprising a neutron scintillating composite material that emits a first photon having a first wavelength and an optical waveguide material having a wavelength-shifting dopant dispersed therein that absorbs the first photon emitted by the neutron scintillating composite material and emits a second photon having a second, different wavelength, and a functionalized reflective layer at an interface between the neutron scintillating composite material and the optical waveguide material. The functionalized reflective layer allows the first photon emitted by the neutron scintillating composite material to pass through and into the optical waveguide material, but prevents the second photon emitted by the optical waveguide material from passing through and into the neutron scintillating composite material. The photons emitted from the neutron sensing element are collected and channeled through the optical waveguide material and into a photosensing element optically coupled to the neutron sensing element.
摘要翻译： 辐射检测器包括中子感测元件，其包括发射具有第一波长的第一光子的中子闪烁复合材料和分散在其中的波长迁移掺杂剂的光波导材料，其吸收由中子闪烁复合材料发射的第一光子并发射 具有第二不同波长的第二光子和在中子闪烁复合材料和光波导材料之间的界面处的官能化反射层。 功能化反射层允许由中子闪烁复合材料发射的第一光子通过并进入光波导材料，但是防止由光波导材料发射的第二光子通过并进入中子闪烁复合材料。 从中子感测元件发射的光子被收集并引导通过光波导材料并且被光耦合到中子感测元件上的光敏元件。
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公开(公告)号：US20110089332A1
公开(公告)日：2011-04-21
申请号：US12579894
申请日：2009-10-15
IPC分类号： G01T3/06
摘要： A neutron detection system comprising a radiation portal monitor is disclosed. The radiation portal monitor includes a neutron moderator sheet and a neutron-sensing panel and is configured to receive incoming neutrons through a neutron collection portal area. The neutron-sensing panel comprises a neutron-sensing material optically coupled to a plurality of optical fibers such that the neutron moderator sheet and the neutron-sensing panel are disposed substantially parallel to the neutron collection portal area.
摘要翻译： 公开了一种包括辐射门禁监视器的中子检测系统。 辐射门禁监视器包括中子调节器片和中子感测面板，并且被配置为通过中子收集门禁区域接收进入的中子。 中子感测面板包括光学耦合到多个光纤的中子感测材料，使得中子调节剂片和中子感测面板基本上平行于中子收集入口区域设置。
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9.发明授权Integrated neutron-gamma radiation detector with optical waveguide and neutron scintillating material 失效具有光波导和中子闪烁材料的集成中子伽马辐射探测器公开(公告)号：US07915596B2
公开(公告)日：2011-03-29
申请号：US12781182
申请日：2010-05-17
IPC分类号： G01T3/00
摘要： A radiation detector includes a neutron sensing element having a neutron scintillating material at least partially surrounded by an optical waveguide material; and a photosensing element optically coupled to the neutron sensing element. The photons emitted from the neutron sensing element are collected and channeled through the optical waveguide material and into the photosensing element.
摘要翻译： 辐射检测器包括具有至少部分地被光波导材料包围的中子闪烁材料的中子感测元件; 以及与所述中子感测元件光耦合的感光元件。 从中子感测元件发射的光子被收集并引导通过光波导材料并进入光敏元件。
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10.发明授权Integrated neutron-gamma radiation detector with adaptively selected gamma threshold 有权具有自适应选择伽马阈值的集成中子伽马射线探测器公开(公告)号：US07626178B2
公开(公告)日：2009-12-01
申请号：US11949095
申请日：2007-12-03
申请人： Adrian Ivan , Steven Jude Duclos , Daniel Bruno McDevitt , James Richard Williams , Brent Allen Clothier , Jeffrey Seymour Gordon
发明人： Adrian Ivan , Steven Jude Duclos , Daniel Bruno McDevitt , James Richard Williams , Brent Allen Clothier , Jeffrey Seymour Gordon
CPC分类号： G01T3/06 , G01T1/1642 , G01T1/17
摘要： An integrated radiation detector having a pulse-mode operating photosensor optically coupled to a gamma sensing element and a neutron sensing element is disclosed. The detector includes pulse shape and processing electronics package that uses an analog to digital converter (ADC) and a charge to digital converter (QDC) to determine scintillation decay times and classify radiation interactions by radiation type. The pulse shape and processing electronics package determines a maximum gamma energy from the spectrum associated with gamma rays detected by the gamma sensing element to adaptively select a gamma threshold for the neutron sensing element. A light pulse attributed to the neutron sensing element is a valid neutron event when the amplitude of the light pulse is above the gamma threshold.
摘要翻译： 公开了一种具有光耦合到伽马感测元件和中子感测元件的脉冲模式操作光电传感器的集成辐射探测器。 检测器包括脉冲形状和处理电子封装，其使用模数转换器（ADC）和电荷到数字转换器（QDC）来确定闪烁衰减时间并通过辐射类型对辐射相互作用进行分类。 脉冲形状和处理电子器件封装确定与由伽马感测元件检测到的伽马射线相关联的光谱的最大伽马能量，以自适应地选择中子感测元件的伽马阈值。 归因于中子感测元件的光脉冲是当光脉冲的幅度高于伽马阈值时的有效中子事件。
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