GB2286248B - Detection method and apparatus - Google Patents

Detection method and apparatus

Info

Publication number
GB2286248B
GB2286248B GB9505177A GB9505177A GB2286248B GB 2286248 B GB2286248 B GB 2286248B GB 9505177 A GB9505177 A GB 9505177A GB 9505177 A GB9505177 A GB 9505177A GB 2286248 B GB2286248 B GB 2286248B
Authority
GB
Grant status
Grant
Patent type
Prior art keywords
apparatus
detection method
detection
method
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.)
Expired - Fee Related
Application number
GB9505177A
Other versions
GB2286248A (en )
GB9505177D0 (en )
Inventor
John Alec Sydney Smith
Martin Blanz
Julian David Shaw
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
BTG International 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
Grant date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/441Nuclear Quadrupole Resonance [NQR] Spectroscopy and Imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N24/00Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
    • G01N24/08Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
    • G01N24/084Detection of potentially hazardous samples, e.g. toxic samples, explosives, drugs, firearms, weapons
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/446Multifrequency selective RF pulses, e.g. multinuclear acquisition mode
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/4804Spatially selective measurement of temperature or pH
GB9505177A 1991-06-07 1992-06-04 Detection method and apparatus Expired - Fee Related GB2286248B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9112290A GB9112290D0 (en) 1991-06-07 1991-06-07 Methods and apparatus for nqr imaging
GB9505177A GB2286248B (en) 1991-06-07 1992-06-04 Detection method and apparatus
GB9211877A GB2257525B (en) 1991-06-07 1992-06-04 Imaging method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9505177A GB2286248B (en) 1991-06-07 1992-06-04 Detection method and apparatus

Publications (3)

Publication Number Publication Date
GB9505177D0 true GB9505177D0 (en) 1995-05-03
GB2286248A true GB2286248A (en) 1995-08-09
GB2286248B true GB2286248B (en) 1995-11-22

Family

ID=26299031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9505177A Expired - Fee Related GB2286248B (en) 1991-06-07 1992-06-04 Detection method and apparatus

Country Status (1)

Country Link
GB (1) GB2286248B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788608B1 (en) 1994-09-29 2000-10-25 British Technology Group Limited Nuclear quadrupole resonance testing
CA2213568A1 (en) 1995-02-24 1996-08-29 British Technology Group Limited Method of and apparatus for nuclear quadrupole resonance testing a sample, and pulse sequence for exciting nuclear quadrupole resonance
EP1319570A1 (en) * 2001-12-14 2003-06-18 Siemens Schweiz AG Method and system for detection of objects along a rail
US7521932B2 (en) 2003-05-06 2009-04-21 The Penn State Research Foundation Method and system for adjusting the fundamental symmetric mode of coupled high temperature superconductor coils
US7295085B2 (en) 2003-08-21 2007-11-13 E.I. Du Pont De Nemours And Company Process for making high temperature superconductor devices each having a line oriented in a spiral fashion
WO2005081002A3 (en) 2003-10-23 2005-10-13 Du Pont Method for biological identification using high temperature superconductor enhanced nuclear quadrupole resonance
WO2005047917A1 (en) * 2003-11-12 2005-05-26 E.I. Dupont De Nemours And Company Detection of contraband using nuclear quadrupole resonance
US20070245374A1 (en) 2003-11-24 2007-10-18 Inventec Corporation Video program subtitle tex recording method and system
US7332910B2 (en) 2003-11-24 2008-02-19 E.I. Du Pont De Nemours And Company Frequency detection system comprising circuitry for adjusting the resonance frequency of a high temperature superconductor self-resonant coil
US7301344B2 (en) 2003-11-24 2007-11-27 E.I. Du Pont De Nemours & Co. Q-damping circuit including a high temperature superconductor coil for damping a high temperature superconductor self-resonant coil in a nuclear quadrupole resonance detection system
US7375525B2 (en) 2003-12-15 2008-05-20 E.I. Du Pont De Nemours And Company Use of multiple sensors in a nuclear quadropole resonance detection system to improve measurement speed
WO2005078469A1 (en) 2004-02-04 2005-08-25 E.I. Dupont De Nemours And Company The use of two or more sensors to detect different nuclear quadrupole resonance signals of a target compound
WO2006076004A3 (en) 2004-04-15 2006-09-08 Robby Alvarez Decoupling high temperature superconductor sensor arrays in nuclear quadrupole resonance detection systems
EP1740967A2 (en) 2004-04-30 2007-01-10 E.I.Du Pont de Nemours and Company Methods and apparatus for scanning a band of frequencies using an array of high temperature superconductor sensors
US7265549B2 (en) 2004-04-30 2007-09-04 E. I. Du Pont De Nemours And Company Scanning a band of frequencies using an array of high temperature superconductor sensors tuned to the same frequency
US7279897B2 (en) 2004-04-30 2007-10-09 E. I. Du Pont De Nemours And Company Scanning a band of frequencies using an array of high temperature superconductor sensors tuned to different frequencies
EP1828797A1 (en) 2004-12-03 2007-09-05 E.I. Dupont De Nemours And Company Decoupling of excitation and receive coils of an nqr detection system during signal reception

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426851A1 (en) * 1988-10-07 1991-05-15 Hitachi, Ltd. Apparatus for detecting particular substance
WO1992021987A1 (en) * 1991-05-23 1992-12-10 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Detection of explosives by nuclear quadrupole resonance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426851A1 (en) * 1988-10-07 1991-05-15 Hitachi, Ltd. Apparatus for detecting particular substance
WO1992021987A1 (en) * 1991-05-23 1992-12-10 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Detection of explosives by nuclear quadrupole resonance

Also Published As

Publication number Publication date Type
GB2286248A (en) 1995-08-09 application
GB9505177D0 (en) 1995-05-03 application

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000604