JP4341109B2 - 非導電性内壁を有するｍｒｉ磁石アセンブリ - Google Patents

非導電性内壁を有するｍｒｉ磁石アセンブリ Download PDF

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Publication number
JP4341109B2
JP4341109B2 JP22589699A JP22589699A JP4341109B2 JP 4341109 B2 JP4341109 B2 JP 4341109B2 JP 22589699 A JP22589699 A JP 22589699A JP 22589699 A JP22589699 A JP 22589699A JP 4341109 B2 JP4341109 B2 JP 4341109B2
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Japan
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wall
magnet assembly
magnet
conductive
conductive layer
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Expired - Fee Related
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JP22589699A
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Japanese (ja)
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JP2000060823A (ja
JP2000060823A5 (enExample
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ロバート・アーヴィン・ヘディーン
ウィリアム・アラン・エーデルスタイン
セイド−アムル・エル−ハマムシィ
ロバート・アドルフ・アッカーマン
ケニス・ゴードン・ハード
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General Electric Co
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General Electric Co
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    • 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
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • G01R33/3854—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems
    • 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
    • G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
    • G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/879—Magnet or electromagnet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/888—Refrigeration
    • Y10S505/892—Magnetic device cooling
    • Y10S505/893—Spectrometer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/888—Refrigeration
    • Y10S505/898—Cryogenic envelope

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP22589699A 1998-08-14 1999-08-10 非導電性内壁を有するｍｒｉ磁石アセンブリ Expired - Fee Related JP4341109B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/134,764 US6157276A (en) 1998-08-14 1998-08-14 MRI magnet assembly with non-conductive inner wall
US09/134764 1998-08-14

Publications (3)

Publication Number Publication Date
JP2000060823A JP2000060823A (ja) 2000-02-29
JP2000060823A5 JP2000060823A5 (enExample) 2008-10-23
JP4341109B2 true JP4341109B2 (ja) 2009-10-07

Family

ID=22464884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22589699A Expired - Fee Related JP4341109B2 (ja) 1998-08-14 1999-08-10 非導電性内壁を有するｍｒｉ磁石アセンブリ

Country Status (4)

Country Link
US (1) US6157276A (enExample)
EP (1) EP0981057B1 (enExample)
JP (1) JP4341109B2 (enExample)
DE (1) DE69932477D1 (enExample)

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DE19940550C1 (de) * 1999-08-26 2001-05-23 Siemens Ag Magnetresonanztomographiegerät mit vakuumisoliertem Gradientenspulensystem
US6324851B1 (en) * 1999-12-09 2001-12-04 Abb Power T&D Company Inc. Cryostat for use with a superconducting transformer
US6954068B1 (en) 2000-01-21 2005-10-11 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus
JP2002200055A (ja) * 2000-12-28 2002-07-16 Toshiba Medical System Co Ltd 磁気共鳴イメージング装置
US6556012B2 (en) 2000-01-21 2003-04-29 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus
US6567685B2 (en) * 2000-01-21 2003-05-20 Kabushiki Kaisha Toshiba Magnetic resonance imaging apparatus
US6437568B1 (en) 2000-10-02 2002-08-20 General Electric Company Low noise MRI scanner
US6564900B1 (en) 2000-11-22 2003-05-20 Ge Medical Systems Global Technology Company, Llc Method and apparatus for reducing acoustic noise in MRI scanners
US7013553B2 (en) * 2001-06-20 2006-03-21 General Electric Company Superconducting magnet coil support structure
DE10229491C2 (de) * 2001-07-23 2003-05-22 Siemens Ag Kernspin-Tomographiegerät mit dämpfenden Schichtblechen zur Schwingungsreduktion
US7400146B2 (en) 2002-05-08 2008-07-15 Koninklijke Philips Electronics N.V. Magnetic resonance imaging apparatus with reduced noise production
US7411331B2 (en) * 2002-05-10 2008-08-12 Massachusetts Institute Of Technology Dielectric elastomer actuated systems and methods
US7362889B2 (en) * 2002-05-10 2008-04-22 Massachusetts Institute Of Technology Elastomeric actuator devices for magnetic resonance imaging
US6883226B2 (en) * 2002-09-12 2005-04-26 Ge Medical Systems Global Technology Company, Llc Near net shape coil support structure
US6783059B2 (en) * 2002-12-23 2004-08-31 General Electric Company Conduction cooled passively-shielded MRI magnet
GB2408804B (en) * 2003-12-05 2006-11-01 Ge Med Sys Global Tech Co Llc Near net shape coil support structure
ATE420375T1 (de) * 2004-06-17 2009-01-15 Koninkl Philips Electronics Nv Magnetresonanzabbildungssystem mit eisenunterstütztem magnetfeldgradientensystem
DE102004043988B3 (de) * 2004-09-11 2006-05-11 Bruker Biospin Gmbh Supraleitfähige Magnetspulenanrordnung
US7705701B2 (en) * 2005-07-15 2010-04-27 General Electric Company Thin metal layer vacuum vessels with composite structural support
WO2007076252A1 (en) * 2005-12-20 2007-07-05 Koninklijke Philips Electronics, N.V. Magnetic resonance scanner with a longitudinal magnetic field gradient system
DE102006000923B4 (de) * 2006-01-05 2009-10-29 Siemens Ag Magnetresonanzeinrichtung, umfassend ein einen Magneten nebst Kühleinrichtung enthaltendes, vorzugsweise im Wesentlichen zylindrisches Vakuumgehäuse
US7518370B2 (en) * 2006-11-30 2009-04-14 General Electric Company Low eddy current vacuum vessel and method of making same
EP2144258B1 (en) * 2008-07-10 2011-10-26 Bruker HTS GmbH Cryostat for an electrical power conditioner
US20100102908A1 (en) * 2008-10-24 2010-04-29 Wang Nmr Inc Annular multi-cell endless box girder apparatus for a quench avoidant coldmass in an mri magnet
CA2904267C (en) * 2010-10-13 2018-05-01 Perm Instruments Inc. Multi-phase metering device for oilfield applications
US10371653B2 (en) 2010-10-13 2019-08-06 Perm Instruments Inc. Multi-phase metering device for oilfield applications
JP5361917B2 (ja) * 2011-02-07 2013-12-04 東芝医用システムエンジニアリング株式会社 磁気共鳴イメージング装置
JP5361919B2 (ja) * 2011-02-07 2013-12-04 東芝医用システムエンジニアリング株式会社 磁気共鳴イメージング装置
JP5361918B2 (ja) * 2011-02-07 2013-12-04 東芝医用システムエンジニアリング株式会社 磁気共鳴イメージング装置
US9279871B2 (en) 2011-12-20 2016-03-08 General Electric Company System and apparatus for compensating for magnetic field distortion in an MRI system
US9322892B2 (en) 2011-12-20 2016-04-26 General Electric Company System for magnetic field distortion compensation and method of making same
US9846207B2 (en) 2012-04-30 2017-12-19 Children's Hospital Medical Center Acoustic noise reducing RF coil for magnetic resonance imaging
GB2503460B (en) * 2012-06-26 2014-08-13 Siemens Plc Method and apparatus for reduction of gradient coil vibration in MRI systems
US9274188B2 (en) 2012-11-30 2016-03-01 General Electric Company System and apparatus for compensating for magnetic field distortion in an MRI system
DE102013202163A1 (de) * 2013-02-11 2014-08-14 Siemens Aktiengesellschaft Magnetresonanzvorrichtung
GB2545436B (en) * 2015-12-15 2018-04-11 Siemens Healthcare Ltd A cylindrical superconducting magnet with a shield of ferromagnetic material

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Also Published As

Publication number Publication date
EP0981057A2 (en) 2000-02-23
EP0981057B1 (en) 2006-07-26
DE69932477D1 (de) 2006-09-07
EP0981057A3 (en) 2001-10-17
JP2000060823A (ja) 2000-02-29
US6157276A (en) 2000-12-05

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