DE69128758D1 - Zylindrische Magnetanordnung geeignet für die Bilderzeugung mittels magnetischer Kernresonanz - Google Patents

Zylindrische Magnetanordnung geeignet für die Bilderzeugung mittels magnetischer Kernresonanz

Info

Publication number
DE69128758D1
DE69128758D1 DE69128758T DE69128758T DE69128758D1 DE 69128758 D1 DE69128758 D1 DE 69128758D1 DE 69128758 T DE69128758 T DE 69128758T DE 69128758 T DE69128758 T DE 69128758T DE 69128758 D1 DE69128758 D1 DE 69128758D1
Authority
DE
Germany
Prior art keywords
imaging
magnetic resonance
magnet arrangement
cylindrical magnet
arrangement suitable
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
DE69128758T
Other languages
English (en)
Other versions
DE69128758T2 (de
Inventor
Koji Miyata
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co 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
Priority claimed from JP2267447A external-priority patent/JPH04144541A/ja
Priority claimed from JP2267448A external-priority patent/JP2787509B2/ja
Priority claimed from JP2267446A external-priority patent/JPH04144540A/ja
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Application granted granted Critical
Publication of DE69128758D1 publication Critical patent/DE69128758D1/de
Publication of DE69128758T2 publication Critical patent/DE69128758T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE69128758T 1990-10-04 1991-10-02 Zylindrische Magnetanordnung geeignet für die Bilderzeugung mittels magnetischer Kernresonanz Expired - Fee Related DE69128758T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2267447A JPH04144541A (ja) 1990-10-04 1990-10-04 磁場発生装置
JP2267448A JP2787509B2 (ja) 1990-10-04 1990-10-04 磁場発生装置
JP2267446A JPH04144540A (ja) 1990-10-04 1990-10-04 磁場発生装置

Publications (2)

Publication Number Publication Date
DE69128758D1 true DE69128758D1 (de) 1998-02-26
DE69128758T2 DE69128758T2 (de) 1998-05-14

Family

ID=27335558

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69128758T Expired - Fee Related DE69128758T2 (de) 1990-10-04 1991-10-02 Zylindrische Magnetanordnung geeignet für die Bilderzeugung mittels magnetischer Kernresonanz

Country Status (3)

Country Link
US (1) US5148138A (de)
EP (1) EP0479278B1 (de)
DE (1) DE69128758T2 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665297B1 (fr) * 1990-07-30 1992-10-09 Centre Nat Rech Scient Aimant permanent pour installation d'imagerie par resonance magnetique nucleaire.
US5382936A (en) * 1992-06-02 1995-01-17 The United States Of America As Represented By The Secretary Of The Army Field augmented permanent magnet structures
JP3111079B2 (ja) * 1992-07-27 2000-11-20 ニューヨーク・ユニバーシティ 医療用高磁界磁石
US5428333A (en) * 1993-01-22 1995-06-27 New York University Method and apparatus for compensation of field distortion in a magnetic structure
GB9302843D0 (en) * 1993-02-12 1993-03-31 Oxford Instr Uk Ltd Permanent magnet
KR100321536B1 (ko) * 1993-12-28 2002-06-20 히가시 데쓰로 자전관스퍼터링또는자전관에칭용쌍극자고리자석
US5576679A (en) * 1994-10-25 1996-11-19 Shin-Etsu Chemical Co., Ltd. Cylindrical permanent magnet unit suitable for gyrotron
US5659250A (en) * 1996-03-19 1997-08-19 Intermagnetics General Corporation Full brick construction of magnet assembly having a central bore
US6157099A (en) * 1999-01-15 2000-12-05 Quantum Corporation Specially oriented material and magnetization of permanent magnets
KR20000066040A (ko) * 1999-04-12 2000-11-15 김영남 칼라 음극선관의 색 순도 및 컨버전스 마그네트
US6467157B1 (en) * 2000-01-26 2002-10-22 Odin Technologies, Ltd. Apparatus for construction of annular segmented permanent magnet
US6940378B2 (en) * 2001-01-19 2005-09-06 Halliburton Energy Services Apparatus and method for magnetic resonance measurements in an interior volume
JP4623848B2 (ja) * 2001-03-23 2011-02-02 日立金属株式会社 磁界発生装置
NZ520114A (en) * 2002-07-11 2004-11-26 Victoria Link Ltd an magnetic assembly for an NMR apparatus having an array of permanent magnets disposed about an axis
US6850140B1 (en) * 2003-09-10 2005-02-01 Magnetic Technologies Corporation Layered magnets and methods for producing same
JP4145248B2 (ja) * 2004-01-22 2008-09-03 信越化学工業株式会社 永久磁石式磁界発生装置
US7365623B2 (en) * 2005-06-10 2008-04-29 Beijing Taijie Yanyuan Medical Engineering Technical Co., Ltd. Permanent magnet, magnetic device for use in MRI including the same, and manufacturing processes thereof
EP2144076B1 (de) * 2008-07-07 2012-05-23 RWTH Aachen Segmentierte Ringmagnet-Anordnung zur Erzeugung eines Magnetfeldes
FR2949602A1 (fr) * 2009-08-28 2011-03-04 Commissariat Energie Atomique Dispositif d'aimant permanent cylindrique produisant un champ magnetique controle a une distance de sa surface
FR2949601A1 (fr) 2009-08-28 2011-03-04 Commissariat Energie Atomique Dispositif d'aimant permanent cylindrique a champ magnetique induit d'orientation predeterminee et procede de fabrication
FR2949604B1 (fr) 2009-08-28 2012-03-02 Commissariat Energie Atomique Structure aimantee axisymetrique induisant en son centre un champ homogene d'orientation predeterminee
FR2962846B1 (fr) * 2010-07-16 2014-10-17 Commissariat Energie Atomique Dispositif d'aimant permanent de creation d'un champ magnetique homogene deporte
GB2482632B (en) 2010-07-23 2014-12-10 Siemens Plc Mass damped bore tube for imaging apparatus
JP5623368B2 (ja) * 2010-11-05 2014-11-12 信越化学工業株式会社 ダイポールリング磁気回路
CA2884097C (en) 2014-03-13 2020-04-21 LT Imaging Inc. Magnetic resonance imaging (mri) system and method
ITUB20155325A1 (it) 2015-10-26 2017-04-28 Sotgiu Antonello Magnete per diagnostica clinica tramite risonanze magnetiche (MRI) composto da anelli cilindrici di tipo Halbach: modalita di costruzione e tecniche per rendere omogeneo il campo magnetico in una larga frazione del volume interno del magnete.
CN106601427B (zh) * 2017-01-12 2018-07-24 中国科学院上海硅酸盐研究所 均匀磁场发生器
DE102017205485A1 (de) 2017-03-31 2018-10-04 Bruker Biospin Gmbh Permanentmagnetanordnung für MR-Apparaturen mit axial und lateral verschiebbaren, drehbar gelagerten Ringbaugruppen
FR3082316B1 (fr) * 2018-06-11 2020-10-16 Commissariat Energie Atomique Structure magnetique cylindrique de type halbach dipolaire
GB2622337B (en) * 2019-08-24 2024-07-03 Nanalysis Corp Magnet configurations
WO2021119109A2 (en) * 2019-12-10 2021-06-17 Hyperfine Research, Inc. Swaged component magnet assembly for magnetic resonance imaging
WO2021119063A1 (en) 2019-12-10 2021-06-17 Hyperfine Research, Inc. Ferromagnetic frame for magnetic resonance imaging
WO2021119079A1 (en) 2019-12-10 2021-06-17 Hyperfine Research, Inc. Permanent magnet assembly for magnetic resonance imaging with non-ferromagnetic frame
CN114184990B (zh) * 2021-11-29 2024-01-05 深圳航天科技创新研究院 磁共振成像用的磁体及铁轭的优化方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167639A1 (de) * 1984-06-28 1986-01-15 E.I. Du Pont De Nemours And Company Dauermagnet für einen Bilderzeugungsapparat mittels magnetischer Kernresonanz
NL8402249A (nl) * 1984-07-17 1986-02-17 Philips Nv Kernspin resonantie apparaat met een permanente magnetische magneet.
US4675609A (en) * 1985-09-18 1987-06-23 Fonar Corporation Nuclear magnetic resonance apparatus including permanent magnet configuration
EP0262880B1 (de) * 1986-09-27 1992-06-10 Sumitomo Special Metals Co. Ltd. Vorrichtung zur Erzeugung eines Magnetfeldes für rechnergesteuerte Tomographie mittels magnetischer Kernresonanz
US4931760A (en) * 1986-10-08 1990-06-05 Asahi Kasei Kogyo Kabushiki Kaisha Uniform magnetic field generator
FR2605451B1 (fr) * 1986-10-17 1993-12-24 Thomson Cgr Aimant permanent cylindrique a champ induit longitudinal
US4758813A (en) * 1987-06-24 1988-07-19 Field Effects, Inc. Cylindrical NMR bias magnet apparatus employing permanent magnets and methods therefor

Also Published As

Publication number Publication date
EP0479278A1 (de) 1992-04-08
EP0479278B1 (de) 1998-01-21
US5148138A (en) 1992-09-15
DE69128758T2 (de) 1998-05-14

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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