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BR9611171A - Ultra low background multi-photon detector - Google Patents

Ultra low background multi-photon detector

Info

Publication number
BR9611171A
BR9611171A BR9611171-2A BR9611171A BR9611171A BR 9611171 A BR9611171 A BR 9611171A BR 9611171 A BR9611171 A BR 9611171A BR 9611171 A BR9611171 A BR 9611171A
Authority
BR
Brazil
Prior art keywords
detectors
ultra low
base
low background
photon detector
Prior art date
Application number
BR9611171-2A
Other languages
Portuguese (pt)
Inventor
Andrzej K Drukier
Igor R Sagdejev
Original Assignee
Biotraces Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/669,970 external-priority patent/US5866907A/en
Application filed by Biotraces Inc filed Critical Biotraces Inc
Publication of BR9611171A publication Critical patent/BR9611171A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/08—Means for conveying samples received
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/204—Measuring radiation intensity with scintillation detectors the detector being a liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/208—Circuits specially adapted for scintillation detectors, e.g. for the photo-multiplier section

Landscapes

  • 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)
  • Light Receiving Elements (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

"DETECTOR DE MULTI FóTONS DE FUNDO ULTRA BAIXO". Um dispositivo detector de multi fótons de fundo ultra baixo para rádio isótopos (20) tem uma base de cerca de uma contagem por dia, o qual pode detectar uma molécula atómica de material. Dois detectores de fóton de raios gama e raios X opostos, preferencialmente, incluem, cada um, um cristal de cintilação (22) e um tubo foto multiplicador (26). Sanduichado entre os detectores estão um separador (32) e um suporte de amostra (34) para uma amostra (36) rotulada com rádio isótopos tal como I^ 125^. Cada conector converte as emissões de rádio isótopos em pulsos de saída elétricos em uma base (30), cujos pulsos são então sujeitos a um processamento de sinal para análise da forma do pulso, discriminação da coincidência dos eventos não coincidentes e a quantificação dos rádio isótopos. Os detectores de materiais e os componentes são selecionados para minimizar a base e são protegidos da radiação externa por um escudo composto (55) . Os detectores operando em princípios diferentes e os suportes de amostra em configurações diferentes podem ser usados. O dispositivo pode adicionalmente ser construido para resolver e proporcionar imagens em conjuntos de amostras bidimensionais."ULTRA LOW BACKGROUND MULTI PHOTON DETECTOR". An ultra low background multi-photon detector device for radio isotopes (20) has a base of about one count per day, which can detect an atomic molecule of material. Two opposing gamma-ray and X-ray photon detectors preferably each include a scintillation crystal (22) and a photo multiplier tube (26). Sandwiched between the detectors are a separator (32) and a sample holder (34) for a sample (36) labeled with radio isotopes such as I ^ 125 ^. Each connector converts radio isotope emissions into electrical output pulses in a base (30), whose pulses are then subjected to signal processing to analyze the shape of the pulse, discriminating the coincidence of non-coincident events and quantifying the radio isotopes . Material detectors and components are selected to minimize the base and are protected from external radiation by a composite shield (55). Detectors operating on different principles and sample holders in different configurations can be used. The device can additionally be constructed to resolve and provide images in sets of two-dimensional samples.

BR9611171-2A 1995-10-31 1996-10-31 Ultra low background multi-photon detector BR9611171A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US710895P 1995-10-31 1995-10-31
US08/669,970 US5866907A (en) 1993-10-12 1996-06-25 Ultralow background multiple photon detector
PCT/US1996/016968 WO1997016746A1 (en) 1995-10-31 1996-10-31 Ultralow background multiple photon detector

Publications (1)

Publication Number Publication Date
BR9611171A true BR9611171A (en) 2001-10-23

Family

ID=26676523

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9611171-2A BR9611171A (en) 1995-10-31 1996-10-31 Ultra low background multi-photon detector

Country Status (8)

Country Link
EP (1) EP0866986A1 (en)
JP (1) JPH11514742A (en)
AU (1) AU700518B2 (en)
BR (1) BR9611171A (en)
CA (1) CA2236295A1 (en)
MX (1) MX9803468A (en)
PL (1) PL326564A1 (en)
WO (1) WO1997016746A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5854084A (en) * 1996-07-12 1998-12-29 Biotraces, Inc. Enhanced chromatography using multiphoton detection
JP3380175B2 (en) * 1998-09-24 2003-02-24 アロカ株式会社 Radiation measuring instrument
GB0029430D0 (en) 2000-12-04 2001-01-17 Univ Leicester Devices for imaging radionuclide emissions
WO2007005442A2 (en) 2005-07-01 2007-01-11 Warburton William K Detection of coincident radiations in a single transducer by pulse shape analysis
US7807973B2 (en) * 2008-08-01 2010-10-05 Pulsetor, Llc Pileup rejection in an energy-dispersive radiation spectrometry system
US9297909B2 (en) * 2014-04-18 2016-03-29 Perkinelmer Health Sciences, Inc. Guard efficiency compensation system and method
JP5836465B1 (en) * 2014-10-20 2015-12-24 株式会社日立パワーソリューションズ Radiation measuring apparatus and radiation measuring method
CN104570035B (en) * 2014-12-26 2017-04-12 北京放射性核素实验室 Beta-ray self-absorption correction method for radioactive gaseous nuclide
GB2557926B (en) * 2016-12-16 2021-03-31 Sensinite Oy Apparatus for measuring radiation
CN106443807B (en) * 2016-12-27 2018-05-04 成都理工大学 A kind of radioactive source search device and method for searching
CN106768401B (en) * 2017-03-24 2023-03-21 中国工程物理研究院应用电子学研究所 Micro-energy pulse laser photon number measuring device and method
US10422887B2 (en) 2017-04-06 2019-09-24 Prismatic Sensors Ab Photon-counting x-ray detector system having an adaptive anti-coincidence system
AU2018329661B2 (en) * 2017-09-06 2024-04-11 The United States Of America, As Represented By The Secretary, Department Of Health And Human Services Micro-dose calibrator
CN110515115B (en) * 2018-05-22 2022-11-25 中国辐射防护研究院 Evaluation method for solving peak area of gamma spectrum
CN109725342A (en) * 2019-01-01 2019-05-07 中国人民解放军63653部队 A kind of scatter suppression detecting structure with the measurement of low-energyγ-ray on site
CN110501740B (en) * 2019-08-23 2024-12-03 南京核安核能科技有限公司 A background digital anti-combustion anti-cosmic ray spectrometer HPGe detector detection method
CN110780331A (en) * 2019-11-06 2020-02-11 中国原子能科学研究院 Measuring device for nondestructively and rapidly analyzing micro-trace plutonium in solution
CN113534232B (en) * 2020-04-16 2024-04-09 中国科学院国家空间科学中心 Device and method for synchronously measuring ionized layer neutral molecules and charged particles
CN113031050A (en) * 2021-03-18 2021-06-25 捷创核仪(北京)科技有限公司 High-stability ultralow background gamma spectrometer system
CN115043604B (en) 2022-07-15 2023-01-06 中国建筑材料科学研究总院有限公司 A preparation method of low-background cement and low-background cement
CN115541628B (en) * 2022-09-21 2024-12-31 中国工程物理研究院激光聚变研究中心 Large field of view ultra-high spatial resolution X-ray submicroscopic imaging device and imaging method
CN116859438B (en) * 2023-06-29 2024-06-11 黑龙江省原子能研究院 Instantaneous weak radiation signal detection device and method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4418282A (en) * 1981-06-29 1983-11-29 Beckman Instruments, Inc. Method and apparatus for determining random coincidence count rate in a scintillation counter utilizing the coincidence technique
US4967084A (en) * 1989-02-02 1990-10-30 The University Of Michigan Multi-sample scintillation counter using position-sensitive detector

Also Published As

Publication number Publication date
AU1115497A (en) 1997-05-22
AU700518B2 (en) 1999-01-07
WO1997016746A1 (en) 1997-05-09
PL326564A1 (en) 1998-09-28
CA2236295A1 (en) 1997-05-09
EP0866986A1 (en) 1998-09-30
JPH11514742A (en) 1999-12-14
MX9803468A (en) 1998-11-29

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Legal Events

Date Code Title Description
FD5 Application fees: dismissal - article 86 of industrial property law