CN101443679B - 中子和γ射线监测器 - Google Patents

中子和γ射线监测器 Download PDF

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Publication number
CN101443679B
CN101443679B CN2007800173282A CN200780017328A CN101443679B CN 101443679 B CN101443679 B CN 101443679B CN 2007800173282 A CN2007800173282 A CN 2007800173282A CN 200780017328 A CN200780017328 A CN 200780017328A CN 101443679 B CN101443679 B CN 101443679B
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neutron
photoconduction
optical detector
gamma
optical
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CN101443679A (zh
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李·格罗津斯
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Thermo Scientific Portable Analytical Instruments Inc
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Thermo Niton Analyzers LLC
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T3/00—Measuring neutron radiation
    • G01T3/06—Measuring neutron radiation with scintillation detectors

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of Radiation (AREA)
CN2007800173282A 2006-05-26 2007-05-25 中子和γ射线监测器 Expired - Fee Related CN101443679B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/442,638 2006-05-26
US11/442,638 US7525101B2 (en) 2006-05-26 2006-05-26 Neutron and gamma ray monitor
PCT/US2007/012454 WO2007139915A2 (en) 2006-05-26 2007-05-25 Neutron and gamma ray monitor

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CN101443679A CN101443679A (zh) 2009-05-27
CN101443679B true CN101443679B (zh) 2012-05-23

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EP (1) EP2021831A2 (enExample)
JP (1) JP5231402B2 (enExample)
CN (1) CN101443679B (enExample)
AU (1) AU2007267904B2 (enExample)
CA (1) CA2648767A1 (enExample)
WO (1) WO2007139915A2 (enExample)

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8275091B2 (en) 2002-07-23 2012-09-25 Rapiscan Systems, Inc. Compact mobile cargo scanning system
US7963695B2 (en) 2002-07-23 2011-06-21 Rapiscan Systems, Inc. Rotatable boom cargo scanning system
US6928141B2 (en) 2003-06-20 2005-08-09 Rapiscan, Inc. Relocatable X-ray imaging system and method for inspecting commercial vehicles and cargo containers
US7711661B2 (en) * 2004-12-20 2010-05-04 The Trustees Of Princeton University System and method for resolving gamma-ray spectra
US7471764B2 (en) 2005-04-15 2008-12-30 Rapiscan Security Products, Inc. X-ray imaging system having improved weather resistance
US8247781B2 (en) 2005-12-01 2012-08-21 Innovative American Technology, Inc. Fabrication of a high performance neutron detector with near zero gamma cross talk
US20100224783A1 (en) * 2005-12-01 2010-09-09 Innovative American Technology Inc. High performance neutron detector with near zero gamma cross talk
US20100226580A1 (en) * 2005-12-01 2010-09-09 Innovative American Technology Inc. System and method for increased gamma/neutron detection
US7526064B2 (en) 2006-05-05 2009-04-28 Rapiscan Security Products, Inc. Multiple pass cargo inspection system
US7999236B2 (en) * 2007-02-09 2011-08-16 Mropho Detection, Inc. Dual modality detection system of nuclear materials concealed in containers
US7626178B2 (en) * 2007-12-03 2009-12-01 General Electric Company Integrated neutron-gamma radiation detector with adaptively selected gamma threshold
US7633058B2 (en) * 2007-12-04 2009-12-15 Schlumberger Technology Corporation Hermetically sealed packaging and neutron shielding for scintillation-type radiation detectors
US8686733B2 (en) * 2007-12-19 2014-04-01 Brooks Automation, Inc. Ionization gauge having electron multiplier cold emission source
WO2009089111A2 (en) * 2008-01-02 2009-07-16 Czirr J Bart A heterogeneous capture-gated neutron detector
EP2252869B1 (en) * 2008-02-21 2018-12-12 MKS Instruments, Inc. Ionization gauge with operational parameters and geometry designed for high pressure operation
JP2009198365A (ja) * 2008-02-22 2009-09-03 National Agriculture & Food Research Organization プラスチックシンチレータを検出器とした放射能探査装置
GB0809110D0 (en) 2008-05-20 2008-06-25 Rapiscan Security Products Inc Gantry scanner systems
US8436289B1 (en) 2008-06-09 2013-05-07 Spansion Llc System and method for detecting particles with a semiconductor device
US8232515B2 (en) 2008-06-09 2012-07-31 Spansion Llc Imaging device having a radiation detecting structure disposed at a semiconductor substrate with a thermalizing material and a first radiation-reactive material sensitive to neutron radiation
US8963094B2 (en) * 2008-06-11 2015-02-24 Rapiscan Systems, Inc. Composite gamma-neutron detection system
GB0810638D0 (en) 2008-06-11 2008-07-16 Rapiscan Security Products Inc Photomultiplier and detection systems
US20100155611A1 (en) * 2008-12-19 2010-06-24 Spansion Llc Radiation-detecting structures
US9310323B2 (en) 2009-05-16 2016-04-12 Rapiscan Systems, Inc. Systems and methods for high-Z threat alarm resolution
CN101561418B (zh) * 2009-06-05 2012-07-04 中国原子能科学研究院 痕量钚样品中钚年龄测定方法
CN101561417B (zh) * 2009-06-05 2012-07-04 中国原子能科学研究院 痕量钚样品中钚年龄测定方法
WO2010144227A2 (en) 2009-06-12 2010-12-16 Saint-Gobain Ceramics & Plastics, Inc. High aspect ratio scintillator detector for neutron detection
EP2290406B1 (en) * 2009-07-27 2013-06-12 FLIR Radiation GmbH Apparatus and method for neutron detection with neutron-absorbing calorimetric gamma detectors
US20120080599A1 (en) * 2009-07-27 2012-04-05 Guntram Pausch Apparatus and method for neutron detection by capture-gamma calorimetry
WO2011012155A1 (en) * 2009-07-27 2011-02-03 Icx Technologies Gmbh Apparatus and method for neutron detection with neutron-absorbing calorimetric gamma detectors
US8399849B1 (en) * 2009-08-08 2013-03-19 Redpine Signals, Inc Fast neutron detector
US8177998B2 (en) * 2009-10-26 2012-05-15 Ut-Battelle, Llc Lithium-loaded liquid scintillators
WO2011063154A2 (en) * 2009-11-19 2011-05-26 Saint-Gobain Ceramics & Plastics, Inc. Radiation detector and method of using a radiation detector
CN102081166B (zh) * 2009-12-01 2013-03-27 同方威视技术股份有限公司 中子伽马探测装置及其探测方法
EP2513670B1 (en) 2009-12-15 2020-02-05 Saint-Gobain Ceramics & Plastics, Inc. Radiation detection system and method of analyzing an electrical pulse output by a radiation detector
WO2011087861A2 (en) 2009-12-22 2011-07-21 Rapiscan Systems, Inc. Composite gamma-neutron detection system
CA2702961C (en) * 2010-04-29 2017-07-11 Bubble Technology Industries Inc. Fast neutron spectroscopy using neutron-induced charged particle reactions
CN102985847B (zh) * 2010-06-01 2016-03-02 圣戈本陶瓷及塑料股份有限公司 检测不同定向辐射的辐射传感器以及包含该辐射传感器的辐射检测系统
US20130112885A1 (en) * 2010-07-21 2013-05-09 Hiroshima University Phoswich thermal neutron detector
US8592775B2 (en) 2010-10-27 2013-11-26 Partec, Ltd. Radiation detector having a ribbed scintillator
US8796636B2 (en) * 2010-09-13 2014-08-05 Parttec, Ltd. Neutron detector having enhanced absorption and bifurcated detection elements
WO2012037148A1 (en) * 2010-09-13 2012-03-22 Parttec, Ltd. Radiation detector having a ribbed scintillator
US9507035B2 (en) 2010-11-03 2016-11-29 University Of New Hampshire Tri-material dual-species neutron/gamma spectrometer
WO2012060873A1 (en) * 2010-11-03 2012-05-10 Ryan James M Tri-material dual-species neutron spectrometer
US20120112074A1 (en) * 2010-11-08 2012-05-10 General Electric Company Neutron scintillator composite material and method of making same
EP2638414B1 (en) * 2010-11-12 2018-09-12 Saint-Gobain Ceramics and Plastics, Inc. Radiation detection system and a method of using the same
CN102162857B (zh) * 2011-01-11 2013-06-12 长沙开元仪器股份有限公司 一种中子产额检测方法及系统
WO2012109273A2 (en) 2011-02-08 2012-08-16 Rapiscan Systems, Inc. Covert surveillance using multi-modality sensing
GB2490513B (en) * 2011-05-04 2015-11-04 Symetrica Ltd Neutron spectrometer
US9218933B2 (en) 2011-06-09 2015-12-22 Rapidscan Systems, Inc. Low-dose radiographic imaging system
JP6025849B2 (ja) 2011-09-07 2016-11-16 ラピスカン システムズ、インコーポレイテッド マニフェストデータをイメージング／検知処理に統合するｘ線検査システム
CN102445706A (zh) * 2011-09-26 2012-05-09 华瑞科学仪器(上海)有限公司 中子检测器
US20130105679A1 (en) * 2011-10-28 2013-05-02 Ge Energy Oilfield Technology, Inc. Dual gamma ray and neutron detector in a multi-sensor apparatus and related methods
US9075151B2 (en) 2011-12-22 2015-07-07 General Electric Company Detector array and method of manufacturing the same
CN105629292A (zh) * 2011-12-22 2016-06-01 同方威视技术股份有限公司 一种探测器以及使用该探测器同时探测伽马射线和中子射线的方法
CN103185894B (zh) * 2011-12-28 2016-08-03 同方威视技术股份有限公司 一种快中子探测器
IN2014DN06515A (enExample) * 2012-02-04 2015-06-12 Rapiscan Systems Inc
JP5846960B2 (ja) 2012-02-24 2016-01-20 株式会社トクヤマ 放射線検出器
US8946646B2 (en) 2012-11-09 2015-02-03 Part Tec, Ltd. System, method, and apparatus for detecting neutrons
BR112014013226B1 (pt) 2013-01-31 2021-08-24 Rapiscan Systems, Inc Sistema de inspeção de segurança portátil e método de implantação do mesmo
US9804290B2 (en) * 2013-04-02 2017-10-31 Morpho Detection, Llc Cross-correlated gamma ray and neutron detector
ITRM20130254A1 (it) * 2013-04-29 2014-10-30 Infn Istituto Naz Di Fisica N Ucleare "rivelatori di neutroni termici non facenti uso di 3he e metodo per la loro realizzazione"
WO2014192321A1 (ja) * 2013-05-27 2014-12-04 住友重機械工業株式会社 中性子線検出装置及び中性子捕捉療法装置
JP2015010837A (ja) * 2013-06-26 2015-01-19 日立Ｇｅニュークリア・エナジー株式会社 放射線計測装置
EP3025147A4 (en) 2013-07-23 2017-03-22 Rapiscan Systems, Inc. Methods for improving processing speed for object inspection
US9557427B2 (en) * 2014-01-08 2017-01-31 Rapiscan Systems, Inc. Thin gap chamber neutron detectors
WO2016003547A1 (en) 2014-06-30 2016-01-07 American Science And Engineering, Inc. Rapidly relocatable modular cargo container scanner
CN104464856B (zh) * 2014-11-24 2016-11-02 南京航空航天大学 一种裂变反应中子通量实时监测装置
CN106324656B (zh) * 2015-06-30 2019-04-23 中国辐射防护研究院 掺杂中子灵敏物质钚的塑料闪烁体及其测量热中子的方法
US10345479B2 (en) 2015-09-16 2019-07-09 Rapiscan Systems, Inc. Portable X-ray scanner
CN109074889B (zh) 2016-02-22 2022-10-18 拉皮斯坎系统股份有限公司 用于检测货物中的危险品和违禁品的系统和方法
EP3542188A1 (en) * 2016-11-15 2019-09-25 Thermo Fisher Scientific Messtechnik GmbH System and method of neutron radiation detection
CN110199373B (zh) 2017-01-31 2021-09-28 拉皮斯坎系统股份有限公司 大功率x射线源与操作方法
US10768320B2 (en) * 2017-05-11 2020-09-08 University Of New Hampshire Field deployable neutron/gamma spectrometer
CN109143317B (zh) * 2017-06-16 2023-05-16 中国辐射防护研究院 利用CsI闪烁体降低γ射线干扰的中子探测方法及设备
CN109143319B (zh) * 2017-06-16 2023-04-28 中国辐射防护研究院 利用CeF3闪烁体降低γ射线干扰的中子探测方法及设备
WO2019036865A1 (en) * 2017-08-21 2019-02-28 Shenzhen United Imaging Healthcare Co., Ltd. METHOD AND APPARATUS FOR POSITRON EMISSION TOMOGRAPHY
CN109212578A (zh) * 2018-09-06 2019-01-15 付学智 一种辐射探测器、辐射探测方法及计算机存储介质
CN109870717B (zh) * 2019-03-22 2020-12-11 中国原子能科学研究院 放射性检测装置
CN111025375B (zh) * 2019-12-25 2022-06-07 中国工程物理研究院核物理与化学研究所 一种高能中子照相用成像板及其制备方法
CN111103617B (zh) * 2019-12-25 2022-06-07 中国工程物理研究院核物理与化学研究所 一种热中子照相用成像板及其制备方法
US11212902B2 (en) 2020-02-25 2021-12-28 Rapiscan Systems, Inc. Multiplexed drive systems and methods for a multi-emitter X-ray source
US11193898B1 (en) 2020-06-01 2021-12-07 American Science And Engineering, Inc. Systems and methods for controlling image contrast in an X-ray system
US11841471B2 (en) * 2020-09-21 2023-12-12 The Regents Of The University Of California Triple-mode detector for fast neutrons, slow neutrons, and gamma ray spectroscopy
EP4047398A1 (en) 2021-02-22 2022-08-24 Vilnius University Method and apparatus for detecting large pulsed fluxes of neutrons using optical response of crystals
CN117063064A (zh) 2021-02-23 2023-11-14 拉皮斯坎系统股份有限公司 用于移除具有多个x-射线源的一个或多个扫描系统中的串扰信号的系统和方法
EP4105691A1 (en) 2021-06-16 2022-12-21 Soletanche Freyssinet Gamma and neutron radiation detector
WO2023288196A1 (en) 2021-07-13 2023-01-19 Rapiscan Systems, Inc. Image inspection systems and methods for integrating third party artificial intelligence platforms
JP7744679B2 (ja) * 2021-12-28 2025-09-26 国立研究開発法人日本原子力研究開発機構 中性子検出器
WO2023150418A2 (en) 2022-02-03 2023-08-10 Rapiscan Holdings, Inc. Systems and methods for real-time energy and dose monitoring of an x-ray linear accelerator
US12474282B2 (en) 2022-05-20 2025-11-18 Rapiscan Holdings, Inc. Systems and a method of improved material classification using energy-integrated backscatter detectors
US12385854B2 (en) 2022-07-26 2025-08-12 Rapiscan Holdings, Inc. Methods and systems for performing on-the-fly automatic calibration adjustments of X-ray inspection systems
CN115467025B (zh) * 2022-09-13 2024-06-11 华中科技大学鄂州工业技术研究院 快中子直接探测材料的制备方法和应用
US12467882B2 (en) 2023-03-17 2025-11-11 Rapiscan Holdings, Inc. Systems and methods for monitoring output energy of a high-energy x-ray source
CN118725845A (zh) * 2023-03-29 2024-10-01 松山湖材料实验室 一种复合中子闪烁体及其制备方法与应用

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769916A (en) * 1952-10-02 1956-11-06 Gulf Research Development Co Coincidence-type slow neutron detector
US3573458A (en) * 1969-03-27 1971-04-06 Hal O Anger Positron camera with multiplane focusing
US3786253A (en) * 1972-02-01 1974-01-15 North American Rockwell Gamma and neutron scintillator
US3796875A (en) * 1971-08-18 1974-03-12 Kernforschung Gmbh Ges Fuer Method and apparatus for the non-destructive analysis of nuclear fuels
EP0416970A2 (en) * 1989-08-30 1991-03-13 Schlumberger Limited Nuclear spectroscopy signal stabilization and calibration method and apparatus
US5231290A (en) * 1990-08-07 1993-07-27 Brigham Young University Neutron coincidence detectors employing heterogeneous materials
US5298756A (en) * 1992-10-16 1994-03-29 Fibertek, Inc. Scintillator fiber optic long counter
US5481114A (en) * 1991-07-08 1996-01-02 Commissariat A L'energie Atomique Process and apparatus for the simultaneous selective detection of neutrons and X or gamma photons
US5734166A (en) * 1996-09-20 1998-03-31 Mission Support Incorporated Low-energy neutron detector based upon lithium lanthanide borate scintillators

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335512A1 (de) 1983-09-30 1985-04-18 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Neutronen- und/oder gammadetektionssystem
FR2700210B1 (fr) * 1993-01-06 1995-02-10 Commissariat Energie Atomique Dispositif de détection simultanée et sélective de neutrons et de photons X ou gamma et système de détection utilisant ce dispositif.
US5606167A (en) * 1994-07-11 1997-02-25 Miller; Thomas G. Contraband detection apparatus and method
JPH08338876A (ja) * 1995-06-13 1996-12-24 Mitsubishi Electric Corp 粒子計量器、粒子計量方法および原子力プラント
DE19745669B4 (de) * 1997-10-17 2004-03-04 Bruker Daltonik Gmbh Analysensystem zur zerstörungsfreien Identifikation des Inhalts von Objekten, insbesondere von Sprengstoff und chemischen Kampfstoffen
JP3894351B2 (ja) * 1999-03-03 2007-03-22 独立行政法人 日本原子力研究開発機構 輝尽性蛍光体を用いた放射線計測装置及びその計測方法
US20010046274A1 (en) * 2000-04-28 2001-11-29 Craig Richard A. Method and apparatus for the detection of hydrogenous materials
JP4552020B2 (ja) * 2001-01-29 2010-09-29 独立行政法人 日本原子力研究開発機構 放射線および中性子イメージ検出器
US6529573B2 (en) * 2001-03-09 2003-03-04 The Regents Of The University Of California Proton recoil scintillator neutron rem meter
US6566657B2 (en) * 2001-03-14 2003-05-20 Richard C. Odom Geometrically optimized fast neutron detector
KR20060054191A (ko) * 2003-06-05 2006-05-22 써모 니톤 어넬라이저 엘엘씨 중성자 및 감마선 모니터
JP3976772B2 (ja) * 2003-07-18 2007-09-19 株式会社東京大学Ｔｌｏ 熱中性子束モニタ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769916A (en) * 1952-10-02 1956-11-06 Gulf Research Development Co Coincidence-type slow neutron detector
US3573458A (en) * 1969-03-27 1971-04-06 Hal O Anger Positron camera with multiplane focusing
US3796875A (en) * 1971-08-18 1974-03-12 Kernforschung Gmbh Ges Fuer Method and apparatus for the non-destructive analysis of nuclear fuels
US3786253A (en) * 1972-02-01 1974-01-15 North American Rockwell Gamma and neutron scintillator
EP0416970A2 (en) * 1989-08-30 1991-03-13 Schlumberger Limited Nuclear spectroscopy signal stabilization and calibration method and apparatus
US5231290A (en) * 1990-08-07 1993-07-27 Brigham Young University Neutron coincidence detectors employing heterogeneous materials
US5481114A (en) * 1991-07-08 1996-01-02 Commissariat A L'energie Atomique Process and apparatus for the simultaneous selective detection of neutrons and X or gamma photons
US5298756A (en) * 1992-10-16 1994-03-29 Fibertek, Inc. Scintillator fiber optic long counter
US5734166A (en) * 1996-09-20 1998-03-31 Mission Support Incorporated Low-energy neutron detector based upon lithium lanthanide borate scintillators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M.C.Miller等.Design of a Fast Neutron Coincidence Counter.《Applied Radiation and Isotopes》.1997,第48卷(第10-12期), *

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US7525101B2 (en) 2009-04-28
AU2007267904A1 (en) 2007-12-06
AU2007267904B2 (en) 2012-09-06
JP2009538435A (ja) 2009-11-05
WO2007139915A2 (en) 2007-12-06
JP5231402B2 (ja) 2013-07-10
US20070272874A1 (en) 2007-11-29
EP2021831A2 (en) 2009-02-11
WO2007139915A3 (en) 2008-10-23
CA2648767A1 (en) 2007-12-06
CN101443679A (zh) 2009-05-27

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