CA2132021A1 - Method and apparatus for testing a sample - Google Patents

Method and apparatus for testing a sample

Info

Publication number
CA2132021A1
CA2132021A1 CA002132021A CA2132021A CA2132021A1 CA 2132021 A1 CA2132021 A1 CA 2132021A1 CA 002132021 A CA002132021 A CA 002132021A CA 2132021 A CA2132021 A CA 2132021A CA 2132021 A1 CA2132021 A1 CA 2132021A1
Authority
CA
Canada
Prior art keywords
sample
nuclear
resonance
probe
excitation
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.)
Abandoned
Application number
CA002132021A
Other languages
English (en)
French (fr)
Inventor
John Alec Sydney Smith
Martin Blanz
Neil Francis Peirson
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.)
BTG International Ltd
Original Assignee
British Technology Group Ltd
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 British Technology Group Ltd filed Critical British Technology Group Ltd
Publication of CA2132021A1 publication Critical patent/CA2132021A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/441—Nuclear Quadrupole Resonance [NQR] Spectroscopy and Imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/46—NMR spectroscopy
    • G01R33/4608—RF excitation sequences for enhanced detection, e.g. NOE, polarisation transfer, selection of a coherence transfer pathway
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/46—NMR spectroscopy

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
CA002132021A 1993-09-27 1994-09-20 Method and apparatus for testing a sample Abandoned CA2132021A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB(9319921.4) 1993-09-27
GBGB9319921.4A GB9319921D0 (en) 1993-09-27 1993-09-27 Method of and apparatus for testing a sample

Publications (1)

Publication Number Publication Date
CA2132021A1 true CA2132021A1 (en) 1998-10-22

Family

ID=10742595

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002132021A Abandoned CA2132021A1 (en) 1993-09-27 1994-09-20 Method and apparatus for testing a sample

Country Status (8)

Country Link
US (1) US6246237B1 (en:Method)
AU (1) AU7413794A (en:Method)
CA (1) CA2132021A1 (en:Method)
DE (1) DE4434507A1 (en:Method)
FR (1) FR2769370B1 (en:Method)
GB (2) GB9319921D0 (en:Method)
IT (1) IT1290982B1 (en:Method)
NL (1) NL194950C (en:Method)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060226838A1 (en) * 1997-10-15 2006-10-12 Btg International Limited NQR method and apparatus for testing a sample by applying multiple excitation blocks with different delay times
US6577128B1 (en) * 1998-10-15 2003-06-10 Btg International Limited NQR method and apparatus for testing a sample by applying multiple excitation blocks with different delay times
FR2819891B1 (fr) * 2001-01-24 2003-08-15 Bruker Sa Circuit d'excitation et de recuperation du signal emis par une sonde dans un appareil de spectrometrie rmn
FR2824959B1 (fr) * 2001-05-15 2003-06-27 Commissariat Energie Atomique Dispositif autoadaptatif du facteur de surtension d'une antenne et antenne dotee d'un tel dispositif autoadaptatif
AUPR868201A0 (en) 2001-11-05 2001-11-29 Thorlock International Limited Q-factor switching method and apparatus for detecting nuclear quadrupole and nuclear magnetic resonance signals
GB2389418B (en) * 2002-04-10 2006-07-26 Giles Stanley A detection device
AUPS319402A0 (en) * 2002-06-24 2002-07-18 Thorlock International Limited Monitoring probes for nuclear quadrupole resonance measurements (#12)
AUPS322802A0 (en) * 2002-06-26 2002-07-18 Thorlock International Limited Large volume scanner for nuclear quadrupole resonance measurements (#14)
US7049814B2 (en) * 2004-01-05 2006-05-23 Rapiscan, Inc. Nuclear quadrupole resonance based inspection system using a highly resonant and compact magnetic structure
WO2006081615A1 (en) * 2005-02-01 2006-08-10 Qrsciences Pty Ltd Method and apparatus for detecting significant shielded volumes
WO2009019689A2 (en) * 2007-08-06 2009-02-12 Cascades Ltd. Tumor screening system and methods thereof
RU2386957C1 (ru) * 2008-10-27 2010-04-20 Государственное Учреждение "Научно-производственный комплекс "Технологический центр" Московского Государственного института электронной техники" (ГУ НПК "ТЦ" МИЭТ) Способ преодоления противодействия процессу обнаружения взрывчатых веществ (вв) в комплексе средств обнаружения вв, состоящих из якр-обнаружителя и рентгено-телевизионного интроскопа
US8912788B2 (en) * 2012-11-09 2014-12-16 AMI Research & Development, LLC Low power stimulated emission nuclear quadrupole resonance detection at multiple reference power levels

Family Cites Families (32)

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US3886439A (en) 1970-07-30 1975-05-27 Laukien Guenther R Method of separating broad and narrow lines of a frequency spectrum
DE2126743C3 (de) 1971-05-28 1974-05-16 Spectrospin Ag, Faellanden (Schweiz) Verfahren zur Aufnahme von Spin- ' resonanzspektren
US3808518A (en) 1971-10-20 1974-04-30 A Sergeev Pulsed vhf radio spectrometer for investigation of nuclear quadrupole resonance in solids
US3824451A (en) 1972-11-15 1974-07-16 Varian Associates Pulse modulated fourier transform magnetic resonance spectrometer utilizing quadrature phase detection and high pass filter to eliminate undesired strong resonance lines
US3792346A (en) 1972-11-20 1974-02-12 Massachusetts Inst Technology Proton-enhanced nuclear induction spectroscopy
US4081742A (en) 1976-12-29 1978-03-28 International Business Machines Corporation Quantitative analysis of nuclear magnetic resonance spectra having solvent peaks
US4166972A (en) 1977-10-05 1979-09-04 Southwest Research Institute NMR discrimination apparatus and method therefor
US4438400A (en) 1982-01-18 1984-03-20 Varian Associates, Inc. Method for suppression of acoustic ringing in NMR measurements
FI65365C (fi) * 1982-07-07 1984-05-10 Instrumentarium Oy Spolanordning
EP0114405B1 (en) 1982-12-28 1987-12-02 Kabushiki Kaisha Toshiba Nuclear magnetic resonance diagnostic apparatus
US4638253A (en) * 1984-10-29 1987-01-20 General Electric Company Mutual inductance NMR RF coil matching device
US4678995A (en) 1984-12-12 1987-07-07 Yale University Apparatus and method for determining the presence of substances in a sample by NMR and producing an NMR image thereof
GB8520587D0 (en) 1985-08-16 1985-09-25 Picker Int Ltd Spectroscopy method
US4717881A (en) * 1985-11-15 1988-01-05 Technicare Corporation Radio frequency coils for nuclear magnetic resonance imaging systems
FR2590993B1 (fr) * 1985-11-29 1988-04-29 Thomson Cgr Dispositif et procede de reglage d'une antenne radiofrequence d'un appareil de resonance magnetique nucleaire
US4701708A (en) 1986-08-01 1987-10-20 General Electric Company Polarization transfer by selective homonuclear technique for suppression of uncoupled spins in NMR spectroscopy
EP0256370A1 (de) 1986-08-12 1988-02-24 Siemens Aktiengesellschaft Antennenanordnung zur Anregung und Erfassung der kernmagnetischen Resonanz
GB8701695D0 (en) 1987-01-27 1987-03-04 Smith J A S Detecting compounds
ATE115293T1 (de) 1988-02-15 1994-12-15 Esselte Meto Int Gmbh Vorrichtungen und markierungen mittels magnetischer oder spin-resonanzphänomene.
DE68927612T2 (de) 1988-10-07 1997-07-31 Hitachi Ltd Vorrichtung zum nachweis von teilchen
US4897604A (en) * 1989-02-21 1990-01-30 The Regents Of The University Of California Method and apparatus for selective adjustment of RF coil size for magnetic resonance imaging
US5049821A (en) * 1990-02-15 1991-09-17 University Of Florida Continuously variable field of view surface coil for NMR imaging
GB9006320D0 (en) 1990-03-21 1990-05-16 Gen Electric Co Plc Nuclear magnetic resonance apparatus
GB9007636D0 (en) * 1990-04-04 1990-05-30 Instrumentarium Corp Mri coil
DE4035994A1 (de) * 1990-11-12 1992-05-14 Siemens Ag Schaltung und verfahren zur anpassung von antennen in einem kernspinresonanz-bildgeraet
GB9106789D0 (en) 1991-04-02 1991-05-22 Nat Res Dev Nqr methods and apparatus
US5221899A (en) 1991-04-29 1993-06-22 The Trustees Of Columbia University In The City Of New York Signal acquisition in magnetic resonance analysis
US5254950A (en) 1991-09-13 1993-10-19 The Regents, University Of California DC superconducting quantum interference device usable in nuclear quadrupole resonance and zero field nuclear magnetic spectrometers
IL103339A0 (en) 1991-10-07 1993-03-15 Elbit Ati Ltd Nmr receiver with sigma-delta a/d converter
GB9125883D0 (en) 1991-12-05 1992-02-05 Nat Res Dev Improvements in nqr testing
US5365171A (en) 1992-11-30 1994-11-15 The United States Of America As Represented By The Secretary Of The Navy Removing the effects of acoustic ringing and reducing temperature effects in the detection of explosives by NQR
US5397987A (en) 1993-03-03 1995-03-14 Rheometrics, Inc. Method and apparatus for analyzing samples using nuclear magnetic resonance

Also Published As

Publication number Publication date
AU7413794A (en) 1998-03-19
ITTO940709A1 (it) 1996-03-08
GB9419347D0 (en) 1998-03-18
GB2319086B (en) 1998-09-02
FR2769370A1 (fr) 1999-04-09
IT1290982B1 (it) 1998-12-14
GB9319921D0 (en) 1998-03-18
ITTO940709A0 (en:Method) 1994-09-08
FR2769370B1 (fr) 2000-12-15
US6246237B1 (en) 2001-06-12
NL194950B (nl) 2003-04-01
GB2319086A (en) 1998-05-13
NL9401576A (nl) 1998-11-02
DE4434507A1 (de) 1999-04-08
NL194950C (nl) 2003-08-04

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Legal Events

Date Code Title Description
EEER Examination request
FZDC Discontinued application reinstated
FZDE Discontinued