MX9803468A - Ultralow background multiple photon detector. - Google Patents

Ultralow background multiple photon detector.

Info

Publication number
MX9803468A
MX9803468A MX9803468A MX9803468A MX9803468A MX 9803468 A MX9803468 A MX 9803468A MX 9803468 A MX9803468 A MX 9803468A MX 9803468 A MX9803468 A MX 9803468A MX 9803468 A MX9803468 A MX 9803468A
Authority
MX
Mexico
Prior art keywords
radioisotope
sample
detectors
background
detector
Prior art date
Application number
MX9803468A
Other languages
Spanish (es)
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 MX9803468A publication Critical patent/MX9803468A/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

An ultralow background multiphoton detector device for radioisotopes (20) has a background of about one count per day and can detect one attomole of material. Two opposed gamma and X-ray photon detectors each preferably include a scintillation crystal (22) and a photomultiplier tube (26). Sandwiched between the detectors are a separator (32) and a sample holder (34) for a sample (36) labelled with a radioisotope such as I125. Each detector converts emissions from the radioisotope into electric output pulses in a base (30) which pulses are then subjected to signal processing for pulse shape analysis, discrimination of coincident from non-coincident events, and quantification of the radioisotope. Detector materials and components are selected to minimize background, and are shielded from external radiation in a composite shield (55). Detectors operating on different principes and sample holders of different configurations may be used. The device may further be constructed to resolve and provide images of two-dimensional sample arrays.
MX9803468A 1995-10-31 1998-04-30 Ultralow background multiple photon detector. MX9803468A (en)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
MX9803468A true MX9803468A (en) 1998-11-29

Family

ID=26676523

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9803468A MX9803468A (en) 1995-10-31 1998-04-30 Ultralow background multiple 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 (21)

* 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
US11029418B2 (en) 2017-09-06 2021-06-08 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
CN110501740A (en) * 2019-08-23 2019-11-26 南京核安核能科技有限公司 A kind of anti-antiuniverse X-ray spectrometer X HPGe detector detection method of health of background digitlization
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 Preparation method of low-background cement and low-background cement
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
BR9611171A (en) 2001-10-23
AU700518B2 (en) 1999-01-07
EP0866986A1 (en) 1998-09-30
CA2236295A1 (en) 1997-05-09
AU1115497A (en) 1997-05-22
JPH11514742A (en) 1999-12-14
PL326564A1 (en) 1998-09-28
WO1997016746A1 (en) 1997-05-09

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