DE68919682D1 - Generator für magnetisches feld und verfahren. - Google Patents

Generator für magnetisches feld und verfahren.

Info

Publication number
DE68919682D1
DE68919682D1 DE68919682T DE68919682T DE68919682D1 DE 68919682 D1 DE68919682 D1 DE 68919682D1 DE 68919682 T DE68919682 T DE 68919682T DE 68919682 T DE68919682 T DE 68919682T DE 68919682 D1 DE68919682 D1 DE 68919682D1
Authority
DE
Germany
Prior art keywords
generator
magnetic field
magnetic
field
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
DE68919682T
Other languages
English (en)
Other versions
DE68919682T2 (de
Inventor
Ian Leitch Mcdougall
Alan George Andrew M Armstrong
Donald E I Du Pont De Edwards
Raymond E I Du Pont De N Tietz
Jeffrey David E I Du Pon Cohen
Denis J E I Du Pont De Kountz
Che-Hsiung E I Dupont De N Hsu
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.)
Oxford Medical Ltd
EIDP Inc
Original Assignee
Oxford Medical Ltd
EI Du Pont de Nemours and Co
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
Priority claimed from PCT/GB1988/000861 external-priority patent/WO1989003581A1/en
Application filed by Oxford Medical Ltd, EI Du Pont de Nemours and Co filed Critical Oxford Medical Ltd
Application granted granted Critical
Publication of DE68919682D1 publication Critical patent/DE68919682D1/de
Publication of DE68919682T2 publication Critical patent/DE68919682T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
    • 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
    • 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
DE68919682T 1988-10-14 1989-09-19 Generator für magnetisches feld und verfahren. Expired - Fee Related DE68919682T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/GB1988/000861 WO1989003581A1 (en) 1987-10-14 1988-10-14 Superconducting structures
PCT/GB1989/001095 WO1990004258A1 (en) 1988-10-14 1989-09-19 Magnetic field generating assembly and method

Publications (2)

Publication Number Publication Date
DE68919682D1 true DE68919682D1 (de) 1995-01-12
DE68919682T2 DE68919682T2 (de) 1995-07-06

Family

ID=10630001

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68919682T Expired - Fee Related DE68919682T2 (de) 1988-10-14 1989-09-19 Generator für magnetisches feld und verfahren.

Country Status (5)

Country Link
US (1) US5138326A (de)
EP (1) EP0390901B1 (de)
JP (1) JP3090933B2 (de)
DE (1) DE68919682T2 (de)
WO (1) WO1990004258A1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9002863D0 (en) * 1990-02-08 1990-04-04 Oxford Instr Ltd Magnetic field generating assembly
DE4010032C2 (de) * 1990-03-29 1994-03-03 Bruker Analytische Messtechnik Magnetsystem
GB9009579D0 (en) * 1990-04-27 1990-06-20 Oxford Advanced Tech Magnetic field generating assembly
US5412363A (en) * 1991-12-20 1995-05-02 Applied Superconetics, Inc. Open access superconducting MRI magnet
US5315276A (en) * 1992-01-29 1994-05-24 Hewlett Packard Company Compact superconducting magnet for magnetic resonance imaging
FR2688356A1 (fr) * 1992-03-06 1993-09-10 Alsthom Cge Alcatel Limiteur de courant par inductance serie a circuit magnetique muni d'une gaine supraconductrice.
US5389879A (en) * 1992-12-18 1995-02-14 Pulyer; Yuly M. MRI device having high field strength cylindrical magnet with two axially spaced electromagnets
US5345208A (en) * 1993-05-26 1994-09-06 General Electric Company Pole face design for a C-shaped superconducting magnet
JPH07106154A (ja) * 1993-05-26 1995-04-21 General Electric Co <Ge> Ｃ字形超伝導磁石
JPH07106155A (ja) * 1993-05-26 1995-04-21 General Electric Co <Ge> Ｃ字形超伝導磁石
US5518972A (en) * 1993-12-21 1996-05-21 Finch International Limited Ceramic materials and methods of making the same comprising yttrium, barium, silver, and either selenium or sulfur
US6465739B1 (en) 1993-12-21 2002-10-15 Finch International Limited Very high temperature and atmospheric pressure superconducting compositions and methods of making and using same
US5525583A (en) * 1994-01-24 1996-06-11 American Superconductor Corporation Superconducting magnetic coil
AU739105B2 (en) * 1994-01-24 2001-10-04 American Superconductor Corporation Superconducting magnetic coil
GB9403321D0 (en) * 1994-02-22 1994-04-13 Marconi Gec Ltd Magnet systems
US5659277A (en) * 1994-09-07 1997-08-19 American Superconductor Corporation Superconducting magnetic coil
US5633588A (en) * 1994-09-16 1997-05-27 Hitachi Medical Corporation Superconducting magnet apparatus using superconducting multilayer composite member, method of magnetizing the same and magnetic resonance imaging system employing the same
US5758405A (en) * 1995-04-28 1998-06-02 American Superconductor Corporation Consumable mandrel for superconducting magnetic coils
GB2319845A (en) * 1996-11-30 1998-06-03 Marconi Gec Ltd Opposed pole MRI magnet using HTSC blocks
IT1294051B1 (it) * 1997-04-29 1999-03-15 Esaote Spa Struttura magnetica per la generazione di campi magnetici adatti all'uso nel rilevamento d'immagine in risonanza magnetica nucleare
DE19813211C2 (de) * 1998-03-25 2000-05-18 Siemens Ag Supraleitende Einrichtung mit Leitern aus Hoch-T¶c¶-Supraleitermaterial
US6281773B1 (en) * 1998-07-17 2001-08-28 Picker International, Inc. Magnetizing magnet
US6323749B1 (en) 1998-07-29 2001-11-27 Fonar Corporation MRI with superconducting coil
US6172588B1 (en) * 1999-04-23 2001-01-09 General Electric Company Apparatus and method for a superconductive magnet with pole piece
JP2006313924A (ja) * 2006-06-26 2006-11-16 Toshiba Corp 高温超電導コイル、これを用いた高温超電導マグネットおよび高温超電導マグネットシステム
ITTO20070940A1 (it) 2007-12-27 2009-06-28 Asg Superconductors S P A Bobina con avvolgimenti superconduttivi raffreddati senza fluidi criogenici
GB2468359B (en) 2009-03-06 2013-09-11 3 Cs Ltd Magnetic resonance system
FI126486B (fi) 2010-09-23 2017-01-13 Valmet Automation Oy Sähkömagneetti matalakenttäisiin ydinmagneettiresonanssimittauksiin ja menetelmä sen valmistamiseksi
GB201704683D0 (en) * 2017-03-24 2017-05-10 Siemens Healthcare Ltd Electromagnetic assembley

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503504A (en) * 1968-08-05 1970-03-31 Air Reduction Superconductive magnetic separator
US4190817A (en) * 1977-02-09 1980-02-26 Mario Rabinowitz Persistent current superconducting method and apparatus
US4176291A (en) * 1977-05-27 1979-11-27 Electric Power Research Institute, Inc. Stored field superconducting electrical machine and method
JPS5764635A (en) * 1980-10-07 1982-04-19 Sumitomo Chem Co Ltd Hydroxycyclopentanone and its preparation
GB8410972D0 (en) * 1984-04-30 1984-06-06 Oxford Magnet Tech Magnet assembly
US4656447A (en) * 1984-06-27 1987-04-07 General Electric Company Superconducting filter coils for high homogeneity magnetic field
US4694269A (en) * 1984-08-08 1987-09-15 Ga Technologies Inc. Magnet system and method of its manufacture
FR2574980B1 (fr) * 1984-12-14 1987-01-16 Thomson Cgr Aimant solenoidal a champ magnetique homogene
GB8432439D0 (en) * 1984-12-21 1985-02-06 Oxford Magnet Tech Magnet assembly
US4641119A (en) * 1985-04-19 1987-02-03 Kabushiki Kaisha Toshiba Laminar magnet for magnetic resonance device and method of making same
JPS61281503A (ja) * 1985-06-07 1986-12-11 Hitachi Ltd 円筒形電磁石装置
US4717437A (en) * 1986-06-03 1988-01-05 The United States Of America As Represented By The Secretary Of The Air Force Low modulus damping film
JP2584990B2 (ja) * 1987-03-18 1997-02-26 株式会社 半導体エネルギ−研究所 超電導セラミツクス材料を用いたパイプの作製方法
JPH088166B2 (ja) * 1987-03-31 1996-01-29 住友電気工業株式会社 電流リード
FR2621731B1 (fr) * 1987-10-09 1990-02-09 Thomson Cgr Bobine, aimant comprenant une telle bobine, dispositif d'imagerie par rmn comportant un tel aimant et procede de realisation d'un tel aimant

Also Published As

Publication number Publication date
EP0390901B1 (de) 1994-11-30
JPH04500583A (ja) 1992-01-30
DE68919682T2 (de) 1995-07-06
JP3090933B2 (ja) 2000-09-25
WO1990004258A1 (en) 1990-04-19
US5138326A (en) 1992-08-11
EP0390901A1 (de) 1990-10-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee