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1. 发明授权

US11927704B2 Hybrid radiation detector 有权
公开(公告)号：US11927704B2
公开(公告)日：2024-03-12
申请号：US17432577
申请日：2020-02-21
申请人： KROMEK LIMITED
发明人： Ian Radley , Benjamin John Cantwell
IPC分类号： G01T1/16 , G01T1/20 , G01T1/36
CPC分类号： G01T1/1603 , G01T1/2018 , G01T1/362
摘要： A hybrid radiation detector is described comprising a first energy discriminating detector element selected to be sensitive to incident radiation of a lower energy range and a second detector element selected to be sensitive to incident radiation of a higher energy rage and a second detector element. In embodiments, a first detector element comprises a semiconductor detector; and a second detector element comprises a scintillator detector. The first detector element may thus be suitable to be more responsive to radiation in a first, lower energy range and/or configured and arranged to collect incident radiation emergent from a target of such energy that the photoelectric effect predominates as an attenuation mode in the target; and the second detector element may thus be suitable to be more responsive to radiation in a second, higher energy range and/or configured and arranged to collect incident radiation of a generally higher energy. A method of detecting radiation using such a hybrid detector is also described.

2. 发明授权

US11782045B2 Method for assessing the concentration of uranium in a sample by gamma spectrometry, and associated device 有权
公开(公告)号：US11782045B2
公开(公告)日：2023-10-10
申请号：US17294058
申请日：2019-11-13
申请人： Orano Mining , Commissariat à l'énergie atomique et aux énergies alternatives
发明人： Thomas Marchais , Bertrand Perot , Cédric Carasco , Jean-Luc Ma , Hervé Toubon , Romain Goupillou
IPC分类号： G01N33/24 , G01N23/083 , G01T1/36
CPC分类号： G01N33/24 , G01N23/083 , G01T1/362 , G01N2223/616 , G01N2223/626
摘要： A method for assessing the mass concentration of uranium in a sample of uranium-bearing material by gamma spectrometry, includes a) acquiring (200) an energy spectrum of gamma radiation from the sample using a scintillator detector, the energy spectrum (100) comprising at least a first energy band (110) between 87 keV and 110 keV, and a second energy band (120) between 560 keV and 660 keV, the second energy band comprising at least one energy line (130) at 609 keV from 214Bi, b) calculating (210) an initial mass concentration of uranium (CmU0) using the energy spectrum, c) measuring (220) a parameter representative of the height of the sample and a parameter representative of the density of the sample, d) calculating (230) a corrective coefficient (K), and e) calculating (240) a corrected mass concentration of uranium (CmU) using the initial mass concentration of uranium (CmU0) and the corrective coefficient (K).

3. 发明授权

US11650339B2 Spectroscopic sensor for alpha and beta particles 有权
公开(公告)号：US11650339B2
公开(公告)日：2023-05-16
申请号：US15930117
申请日：2020-05-12
申请人： United States of America as represented by the Secretary of the Navy
发明人： Kyle Alan Nelson
IPC分类号： G01T1/36 , G01T1/20
CPC分类号： G01T1/362 , G01T1/20181 , G01T1/20184
摘要： A sensor for spectroscopic measurement of alpha and beta particles includes first and second layers, a photomultiplier, and an analyzer. A first material of the first layer scintillates a first stream of photons for each of the alpha particles. However, the beta particles pass through the first layer. A second material of the second layer scintillates a second stream of photons for each of the beta particles, but passes the first stream of photons for each alpha particle. The photomultiplier amplifies the first and second streams of photons for the alpha and beta particles into an electrical signal. The electrical signal includes a respective pulse for each of the alpha and beta particles. From the electrical signal, the analyzer determines a respective energy of each of the alpha and/or beta particles from a shape of the respective pulse for each of the alpha and beta particles.

4. 发明申请

US20190212458A1 SYSTEM AND METHOD OF STABILIZATION OF A GAMMA AND NEUTRON DETECTING DEVICE 审中-公开
公开(公告)号：US20190212458A1
公开(公告)日：2019-07-11
申请号：US16358173
申请日：2019-03-19
申请人： THERMO FISHER SCIENTIFIC MESSTECHNIK GMBH
发明人： Michael IWATSCHENKO-BORHO , Erich LEDER , Ralf PIJAHN , Norbert TROST
IPC分类号： G01T1/36 , G01T1/40 , G01T3/06
CPC分类号： G01T1/362 , G01T1/40 , G01T3/065
摘要： A spectroscopic gamma and neutron detecting device includes a scintillation detector that detects gamma and thermal neutron radiation, the scintillation detector including signal detection and amplification electronics, and a stabilization module configured to measure a pulse height spectrum of neutron radiation, determine a thermal neutron peak position in the neutron pulse height spectrum originating from cosmic ray background radiation, monitor the thermal neutron peak position in the neutron pulse height spectrum during operation of the spectroscopic gamma and neutron detecting device, and adjust the signal detection and amplification electronics based on the thermal neutron peak position in the neutron pulse height spectrum, thereby stabilizing the spectroscopic gamma and neutron detecting device.

5. 发明授权

US09864079B2 Radiation detection device, radiation detection method, and computer program product 有权
公开(公告)号：US09864079B2
公开(公告)日：2018-01-09
申请号：US14963805
申请日：2015-12-09
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Keiko Fujii , Go Kawata , Yasuharu Hosono , Kazunori Miyazaki , Rei Hasegawa
IPC分类号： G01T7/00 , G01T1/36 , G01T1/20
CPC分类号： G01T7/005 , G01T1/2018 , G01T1/362
摘要： According to an embodiment, a radiation detection device includes a scintillator layer, a plurality of detectors, a setting unit, an identifier, and a corrector. The scintillator layer is configured to convert radiation into scintillation light. The detectors are arranged along a first surface facing the scintillator layer to detect light. The setting unit is configured to set one of the detectors as a first detector to be corrected. The identifier is configured to identify, out of the detectors, a second detector that detects a synchronization signal synchronizing with a first signal detected by the first detector. The corrector is configured to correct an energy spectrum of light detected by the first detector on the basis of a second signal serving as the synchronization signal in signals detected by the second detector, the first signal, and characteristic X-ray energy of a scintillator raw material constituting the scintillator layer.

6. 发明授权

US09703004B2 High throughput pulse height analyzer 有权
公开(公告)号：US09703004B2
公开(公告)日：2017-07-11
申请号：US15157023
申请日：2016-05-17
申请人： Schlumberger Technology Corporation
发明人： Bruno Jorion
IPC分类号： G01T1/17 , G01V5/10 , G01T1/36 , G01T3/00 , G01V5/12 , G01V13/00
CPC分类号： G01V5/102 , G01T1/17 , G01T1/171 , G01T1/362 , G01T3/001 , G01V5/10 , G01V5/12 , G01V13/00 , G01V2210/40
摘要： A method and system for acquiring spectral information from an energy sensitive nuclear detector is disclosed. The method includes detecting nuclear radiation at a detection device and generating an electronic input pulse indicative of energy deposited in the detection device. The method further includes integrating the electronic input pulse at an integrating device to produce an integrated output signal and digitally sampling the integrated output signal of the integrating device at intervals to produce a stream of digital samples. The method further includes resetting the integrator synchronously with a sampling clock when a limit condition is reached.

7. 发明申请

US20170074992A1 METHOD FOR IMPROVING THE ENERGY RESOLUTION OF GAMMA RAY SCINTILLATION DETECTORS; ASSOCIATED SYSTEM, COMPONENT AND APPLICATIONS 审中-公开
标题翻译：改善伽马射线扫描检测器能量分辨率的方法; 相关系统，组件和应用
公开(公告)号：US20170074992A1
公开(公告)日：2017-03-16
申请号：US15310964
申请日：2015-05-18
申请人： Alain ILTIS
发明人： Alain ILTIS , Hichem Robert René SNOUSSI
IPC分类号： G01T1/20 , G01T1/36 , G01T1/202 , G01T1/164
CPC分类号： G01T1/2018 , G01T1/1642 , G01T1/202 , G01T1/2023 , G01T1/362
摘要： The invention concerns a method for improving the energy resolution of a gamma ray detector comprising a monolithic scintillator and a photodetector segmented during a scintillation event characterised by the following steps:—detecting the time of arrival of the first photons on said photodetector;—counting, during a period T, which is between 2 and 6 times a transfer time (Te), the number and location of the first detected non-scattered photons;—determining the diameter and the position of a disk defined by a set of first non-scattered photons;—determining the position (X, Y) of a scintillation event from the location of said first detected non-scattered photons;—counting the number of the first detected non-scattered photons inside said disk during a period Td greater than a decay time (τ) of the scintillator;—defining the energy of a gamma photon, said energy being proportional to the number of non-scattered photons counted inside the disc. The invention also concerns the associated detection system, the microelectronic component and a scintillator crystal treated for use in a PET application, and the use of the detection system according to the invention in PET and SPECT imagers.
摘要翻译：本发明涉及一种用于改善伽马射线检测器的能量分辨率的方法，该伽马射线检测器包括单片闪烁体和在闪烁事件期间分段的光电检测器，其特征在于以下步骤： - 检测第一光子到达所述光电检测器的时间; 在传送时间（Te）的2到6倍的时间段T期间，第一个检测到的非散射光子的数量和位置; - 确定由一组第一非散射光子定义的圆盘的直径和位置，散射光子; - 从所述第一检测到的非散射光子的位置确定闪烁事件的位置（X，Y）; - 在大于等于（1）的周期Td内的所述盘内的第一检测到的非散射光子的数量）闪烁体的衰减时间（τ）; - 确定γ光子的能量，所述能量与盘内计数的非散射光子的数量成正比。本发明还涉及用于PET应用中处理的相关检测系统，微电子部件和闪烁体晶体，以及根据本发明的检测系统在PET和SPECT成像器中的应用。

8. 发明授权

US09465119B2 Gamma-ray spectrometer 有权
标题翻译：伽玛射线光谱仪
公开(公告)号：US09465119B2
公开(公告)日：2016-10-11
申请号：US14420624
申请日：2013-08-07
申请人： Symetrica Limited
发明人： John Manslow , David Ramsden
IPC分类号： G01T1/40 , G01T1/36
CPC分类号： G01T1/40 , G01T1/362
摘要： An apparatus is described. The apparatus comprising a gamma-ray spectrometer arranged to receive gamma-rays from a calibration source, the gamma-ray spectrometer comprising: a scintillator material optically coupled to two or more photomultipliers, the two or more photomultipliers being arranged to detect photons generated in the scintillator material associated with gamma-ray interactions between the scintillator material and gamma-rays received from the calibration source, wherein the two or more photomultipliers are operable to output respective detection signals associated with the gamma-ray interactions; the apparatus further comprising: a switch coupled to receive the respective detection signals from the two or more photomultipliers and operable to select detection signals from one of the two or more photomultipliers; and a stabilization circuit coupled to the switch and operable to receive the selected detection signal of the respective photomultiplier and to stabilize the gain of the photomultiplier that output the selected detection signal based on the detection signals.
摘要翻译：描述了一种装置。该装置包括设置成从校准源接收伽马射线的伽马射线分光计，该伽马射线光谱仪包括：光耦合到两个或更多个光电倍增管的闪烁体材料，所述两个或更多个光电倍增管被布置成检测在与闪烁体材料与从校准源接收的γ射线之间的伽马射线相互作用相关联的闪烁体材料，其中两个或更多个光电倍增器可操作以输出与伽马射线相互作用相关联的相应检测信号; 所述装置还包括：开关，其被耦合以从所述两个或更多个光电倍增管接收相应的检测信号，并且可操作以从所述两个或更多个光电倍增器之一选择检测信号; 以及稳定电路，其耦合到开关并且可操作以接收相应光电倍增管的所选择的检测信号，并且基于检测信号来稳定输出所选择的检测信号的光电倍增管的增益。

9. 发明申请

US20160231441A1 RADIATION DETECTION DEVICE, RADIATION DETECTION METHOD, AND COMPUTER PROGRAM PRODUCT 有权
标题翻译：辐射检测装置，辐射检测方法和计算机程序产品
公开(公告)号：US20160231441A1
公开(公告)日：2016-08-11
申请号：US14963805
申请日：2015-12-09
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Keiko FUJII , Go KAWATA , Yasuharu HOSONO , Kazunori MIYAZAKI , Rei HASEGAWA
IPC分类号： G01T7/00 , G01T1/36
CPC分类号： G01T7/005 , G01T1/2018 , G01T1/362
摘要： According to an embodiment, a radiation detection device includes a scintillator layer, a plurality of detectors, a setting unit, an identifier, and a corrector. The scintillator layer is configured to convert radiation into scintillation light. The detectors are arranged along a first surface facing the scintillator layer to detect light. The setting unit is configured to set one of the detectors as a first detector to be corrected. The identifier is configured to identify, out of the detectors, a second detector that detects a synchronization signal synchronizing with a first signal detected by the first detector. The corrector is configured to correct an energy spectrum of light detected by the first detector on the basis of a second signal serving as the synchronization signal in signals detected by the second detector, the first signal, and characteristic X-ray energy of a scintillator raw material constituting the scintillator layer.
摘要翻译：根据实施例，放射线检测装置包括闪烁体层，多个检测器，设置单元，标识符和校正器。闪烁体层被配置为将辐射转换成闪烁光。检测器沿着面向闪烁体层的第一表面布置以检测光。设置单元被配置为将一个检测器设置为要校正的第一检测器。标识符被配置为在检测器之外识别检测与由第一检测器检测到的第一信号同步的同步信号的第二检测器。校正器被配置为基于由第二检测器检测的信号中的同步信号的第二信号，第一信号和闪烁器原始的特征X射线能量来校正由第一检测器检测到的光的能谱构成闪烁体层的材料。

10. 发明授权

US09329302B2 Use of spectral information to extend temperature range of gamma-ray detector 有权
标题翻译：使用光谱信息来扩展伽马射线探测器的温度范围
公开(公告)号：US09329302B2
公开(公告)日：2016-05-03
申请号：US13629268
申请日：2012-09-27
申请人： Christian Stoller
发明人： Christian Stoller
IPC分类号： G01V5/06 , G01T1/36 , G01T1/20 , G01V5/04
CPC分类号： G01V5/06 , G01T1/20 , G01T1/362 , G01V5/04
摘要： A method is for detecting gamma rays using a gamma ray detector, and includes determining a first count of gamma rays having an energy in a first energy interval, using a controller coupled to the gamma ray detector. A second count of gamma rays having an energy in a second energy interval is determined, the second energy interval having a higher energy than the first energy interval, using the controller. A third count of gamma rays having an energy in a third energy interval is determined, the third energy interval having a higher energy than the second energy interval, using the controller. The second count of gamma rays is compensated for noise based upon a ratio of the second count and the third count, using the controller.
摘要翻译：一种用于使用伽马射线检测器检测伽马射线的方法，并且包括使用耦合到伽马射线检测器的控制器来确定具有第一能量间隔中的能量的伽马射线的第一计数。使用控制器确定具有第二能量间隔中的能量的伽马射线的第二计数，第二能量间隔具有比第一能量间隔更高的能量。使用控制器确定具有第三能量间隔中的能量的伽马射线的第三计数，第三能量间隔具有比第二能量间隔更高的能量。使用控制器，基于第二计数和第三计数的比率来补偿第二伽马射线计数的噪声。

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