EP1071948A2 - Procede et dispositif permettant de detecter, de localiser et d'analyser des composes chimiques par activation de particules subatomiques - Google Patents

Procede et dispositif permettant de detecter, de localiser et d'analyser des composes chimiques par activation de particules subatomiques

Info

Publication number
EP1071948A2
EP1071948A2 EP99933468A EP99933468A EP1071948A2 EP 1071948 A2 EP1071948 A2 EP 1071948A2 EP 99933468 A EP99933468 A EP 99933468A EP 99933468 A EP99933468 A EP 99933468A EP 1071948 A2 EP1071948 A2 EP 1071948A2
Authority
EP
European Patent Office
Prior art keywords
detector
detecting
particle
act
subatomic
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP99933468A
Other languages
German (de)
English (en)
Inventor
Bogdan C. Maglich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hienergy Microdevices Inc
Original Assignee
Hienergy Microdevices 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
Application filed by Hienergy Microdevices Inc filed Critical Hienergy Microdevices Inc
Publication of EP1071948A2 publication Critical patent/EP1071948A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/221—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by activation analysis
    • G01N23/222—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by activation analysis using neutron activation analysis [NAA]

Abstract

Dispositif et procédé permettant de détecter, de localiser et d'analyser, par activation de particules subatomiques, des composés chimiques contenus dans un objet à tester. Une source d'excitation excite une cible de façon à produire simultanément des faisceaux dont chacun est constitué de certaines espèces subatomiques, tels que neutrons rapides et particules alpha. L'objet à tester (et les composés chimiques qu'il contient) est irradié par les neutrons rapides, ce qui stimule l'émission de rayons gamma instantanés. Des détecteurs gamma et alpha sont positionnés par rapport à l'objet à tester et à la cible de façon à détecter les rayons gamma instantanés et les particules alpha émis en coïncidence substantielle, et la relation physique connue entre les faisceaux est utilisée pour localiser spatialement le composé chimique activé. Les spectres d'énergie dérivés des détecteurs gamma sont filtrés de façon à éliminer tous les artefacts spectraux non pertinents, ce qui 1) permet de créer une pluralité de canaux de coïncidence parallèles ; 2) diminue le traitement de signaux ultérieur nécessaire ; et 3) augmente globalement la précision et le rendement des processus d'identification et d'analyse du composé chimique. L'invention concerne également un mode de réalisation multifaisceau/multicible, qui permet une localisation spatiale encore plus précise. Elle concerne aussi un procédé qui permet d'étalonner et d'évaluer l'efficacité du système avec divers paramètres d'analyse.
EP99933468A 1998-02-18 1999-02-17 Procede et dispositif permettant de detecter, de localiser et d'analyser des composes chimiques par activation de particules subatomiques Withdrawn EP1071948A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7503798P 1998-02-18 1998-02-18
US75037P 1998-02-18
PCT/US1999/003491 WO1999049311A2 (fr) 1998-02-18 1999-02-17 Procede et dispositif permettant de detecter, de localiser et d'analyser des composes chimiques par activation de particules subatomiques

Publications (1)

Publication Number Publication Date
EP1071948A2 true EP1071948A2 (fr) 2001-01-31

Family

ID=22123142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99933468A Withdrawn EP1071948A2 (fr) 1998-02-18 1999-02-17 Procede et dispositif permettant de detecter, de localiser et d'analyser des composes chimiques par activation de particules subatomiques

Country Status (5)

Country Link
EP (1) EP1071948A2 (fr)
JP (1) JP2002507746A (fr)
AU (1) AU4951699A (fr)
CA (1) CA2321063A1 (fr)
WO (1) WO1999049311A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030165213A1 (en) * 1998-02-18 2003-09-04 Maglich Bogdan C. Method and apparatus for neutron microscopy with stoichiometric imaging
JP5366394B2 (ja) * 2007-12-21 2013-12-11 ハミルトン・サンドストランド・コーポレイション 試料に含まれる化合物を検出するシステムおよび方法
PL225474B1 (pl) * 2014-09-07 2017-04-28 Univ Jagielloński Urządzenie oraz sposób do nieinwazyjnego wykrywania materiałów niebezpiecznych w środowisku wodnym

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323004A (en) * 1989-05-08 1994-06-21 Scientific Innovations, Inc. Nuclear resonances in activation analysis, and particularly, its application to detection of nitrogen based explosives in luggage
US5098640A (en) * 1990-01-10 1992-03-24 Science Applications International Corporation Apparatus and method for detecting contraband using fast neutron activation
US5200626A (en) * 1990-03-28 1993-04-06 Martin Marietta Energy Systems, Inc. Hidden explosives detector employing pulsed neutron and x-ray interrogation
US5247177A (en) * 1990-04-09 1993-09-21 The State Of Israel, Atomic Energy Commission, Soreq Nuclear Research Center Detection of nitrogenous material
GB9301983D0 (en) * 1993-02-02 1993-03-17 Atomic Energy Authority Uk Analysis using neutrons
US5557108A (en) * 1993-10-25 1996-09-17 T+E,Uml U+Ee Mer; T+E,Uml U+Ee May O. Integrated substance detection and identification system
JPH10510621A (ja) * 1994-10-31 1998-10-13 ロックヒード マーティン スペシャルティー コンポネンツ インク． 中性子問合せ及びｘ線撮像の組合せを用いた、爆発物を検出するための検査システム及び空間解像技術
US5784430A (en) * 1996-04-16 1998-07-21 Northrop Grumman Corporation Multiple station gamma ray absorption contraband detection system
DE19622758A1 (de) * 1996-06-07 1997-12-11 Philips Patentverwaltung Verfahren zur Detektion eines Körpers innerhalb eines Untersuchungsbereichs und Anordnung zur Durchführung des Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9949311A3 *

Also Published As

Publication number Publication date
JP2002507746A (ja) 2002-03-12
AU4951699A (en) 1999-10-18
WO1999049311A2 (fr) 1999-09-30
CA2321063A1 (fr) 1999-09-30
WO1999049311A3 (fr) 2000-01-20

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