WO2006117520A3 - Halbach magnet array for nmr investigations - Google Patents

Halbach magnet array for nmr investigations Download PDF

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Publication number
WO2006117520A3
WO2006117520A3 PCT/GB2006/001548 GB2006001548W WO2006117520A3 WO 2006117520 A3 WO2006117520 A3 WO 2006117520A3 GB 2006001548 W GB2006001548 W GB 2006001548W WO 2006117520 A3 WO2006117520 A3 WO 2006117520A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnets
sample volume
plane
square
magnet
Prior art date
Application number
PCT/GB2006/001548
Other languages
French (fr)
Other versions
WO2006117520A2 (en
Inventor
Brian Philip Hills
Original Assignee
Plant Bioscience Ltd
Brian Philip Hills
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 Plant Bioscience Ltd, Brian Philip Hills filed Critical Plant Bioscience Ltd
Priority to US11/913,630 priority Critical patent/US20090128272A1/en
Priority to EP06726930A priority patent/EP1877817A2/en
Publication of WO2006117520A2 publication Critical patent/WO2006117520A2/en
Publication of WO2006117520A3 publication Critical patent/WO2006117520A3/en

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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
    • G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles

Abstract

A magnet array for use with NMR signal acquisition apparatus uses rod-shaped magnets located at the corners of a square. The square lies in the (x-y) plane of a three dimensional Cartesian coordinate system and the long axes of the magnets extend generally along the z-direction such that the polarisation vectors of the magnets lie substantially in the x-y plane. The magnets are arranged to create a substantially uniform magnetic field B0 in a sample volume at the centre of the polygon. The widths of the magnets are less than the length of the sides of the square so that there is a gap between magnets allowing lateral access in the x-y plane to the sample volume. Each magnet may be rotatable about its longitudinal axis to change one and/or both the B0 field direction and magnitude in the sample volume. At least one magnet may be displaceable in a direction orthogonal to its longitudinal axis to change one and/or both the B0 field direction and magnitude in the sample volume.
PCT/GB2006/001548 2005-05-05 2006-04-28 Halbach magnet array for nmr investigations WO2006117520A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/913,630 US20090128272A1 (en) 2005-05-05 2006-04-28 Halbach magnet array for nmr investigations
EP06726930A EP1877817A2 (en) 2005-05-05 2006-04-28 Halbach magnet array for nmr investigations

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0509144.2 2005-05-05
GB0509144A GB2425842A (en) 2005-05-05 2005-05-05 Magnetic resonance sensor with rotatable magnetic rods placed around the sample

Publications (2)

Publication Number Publication Date
WO2006117520A2 WO2006117520A2 (en) 2006-11-09
WO2006117520A3 true WO2006117520A3 (en) 2007-05-03

Family

ID=34674356

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/001548 WO2006117520A2 (en) 2005-05-05 2006-04-28 Halbach magnet array for nmr investigations

Country Status (4)

Country Link
US (1) US20090128272A1 (en)
EP (1) EP1877817A2 (en)
GB (1) GB2425842A (en)
WO (1) WO2006117520A2 (en)

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US8593141B1 (en) 2009-11-24 2013-11-26 Hypres, Inc. Magnetic resonance system and method employing a digital squid
JP5818267B2 (en) 2009-12-02 2015-11-18 ナナリシス コーポレーション Method and apparatus for producing a uniform magnetic field
US8049182B2 (en) * 2010-01-12 2011-11-01 Oxford Instruments Nanotechnology Tools Limited Charged particle filter
US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
US9528814B2 (en) 2011-05-19 2016-12-27 NeoVision, LLC Apparatus and method of using impedance resonance sensor for thickness measurement
US9465089B2 (en) 2011-12-01 2016-10-11 Neovision Llc NMR spectroscopy device based on resonance type impedance (IR) sensor and method of NMR spectra acquisition
US8952708B2 (en) 2011-12-02 2015-02-10 Neovision Llc Impedance resonance sensor for real time monitoring of different processes and methods of using same
KR101310750B1 (en) * 2012-01-31 2013-09-24 한국표준과학연구원 biomagnetic resonance apparatus and the measuring method of the same
EP2812901B1 (en) 2012-02-10 2021-09-15 Nanalysis Corp. Pole piece for use within a halbach array
US8710428B1 (en) * 2012-02-22 2014-04-29 AOSense, Inc. Permanent magnet axial field zeeman slower
DK2861136T3 (en) 2012-06-15 2021-09-06 Massachusetts Gen Hospital SYSTEM AND METHOD OF MAGNETIC RESONANCE IMAGING USING A ROTARY ARRAY OF PERMANENT MAGNETS
US9910115B2 (en) 2012-10-22 2018-03-06 The General Hospital Corporation System and method for portable magnetic resonance imaging using a rotating array of magnets
MX356311B (en) 2013-03-01 2018-05-23 Halliburton Energy Services Inc Miniature nmr drill cutting analyzer and methods of use.
EP3038527B1 (en) * 2013-09-05 2023-11-08 Massachusetts Institute of Technology Rapid, non-invasive determination of hydration state or vascular volume of a subject
US10527565B2 (en) 2015-07-29 2020-01-07 Chevron U.S.A. Inc. NMR sensor for analyzing core or fluid samples from a subsurface formation
GB201516324D0 (en) * 2015-09-15 2015-10-28 Gill Corporate Ltd A nuclear magnetic resonance flowmeter and a method of measuring flow using nuclear magnetic resonance
ITUB20155325A1 (en) 2015-10-26 2017-04-28 Sotgiu Antonello Magnet for clinical diagnostics using magnetic resonance (MRI) composed of Halbach-type cylindrical rings: construction methods and techniques for making the magnetic field homogeneous in a large fraction of the internal volume of the magnet.
US10746827B2 (en) * 2016-02-04 2020-08-18 Clear-Cut Medical Ltd. MRI imaging system using permanent magnet array
BR112019002914B1 (en) * 2016-09-20 2023-01-24 Halliburton Energy Services, Inc PRESSURIZED NUCLEAR MAGNETIC RESONANCE TESTIMONY SUPPORT AND SYSTEM
US11299705B2 (en) 2016-11-07 2022-04-12 Deka Products Limited Partnership System and method for creating tissue
IL275019B1 (en) 2017-12-01 2024-01-01 Deka Products Lp System and method for characterising bioreactor fluids using a magnetic resonance apparatus
EP4073530A1 (en) 2019-12-10 2022-10-19 Hyperfine Operations, Inc. Permanent magnet assembly for magnetic resonance imaging with non-ferromagnetic frame
US11355977B2 (en) 2019-12-12 2022-06-07 Honeywell International Inc. Multi-degree-of-freedom electromagnetic machine with Halbach array
WO2022038603A1 (en) * 2020-08-17 2022-02-24 Ramot At Tel-Aviv University Ltd. Mri in an inhomogeneous field with no pulsed gradients
EP4148449A1 (en) * 2021-09-13 2023-03-15 Koninklijke Philips N.V. Mechanical gradient magnetic field generator

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Also Published As

Publication number Publication date
WO2006117520A2 (en) 2006-11-09
GB0509144D0 (en) 2005-06-08
EP1877817A2 (en) 2008-01-16
GB2425842A (en) 2006-11-08
US20090128272A1 (en) 2009-05-21

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