NL9001300A - Magneetstelsel voor magnetische resonantie. - Google Patents

Magneetstelsel voor magnetische resonantie. Download PDF

Info

Publication number
NL9001300A
NL9001300A NL9001300A NL9001300A NL9001300A NL 9001300 A NL9001300 A NL 9001300A NL 9001300 A NL9001300 A NL 9001300A NL 9001300 A NL9001300 A NL 9001300A NL 9001300 A NL9001300 A NL 9001300A
Authority
NL
Netherlands
Prior art keywords
magnetic
coil
magnetic system
passive
coils
Prior art date
Application number
NL9001300A
Other languages
English (en)
Dutch (nl)
Inventor
Johannes Adrianus Overweg
Gerardus Nerius Peeren
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Priority to NL9001300A priority Critical patent/NL9001300A/nl
Priority to EP91201370A priority patent/EP0460762B1/en
Priority to KR1019910009188A priority patent/KR920001214A/ko
Priority to DE69130590T priority patent/DE69130590T2/de
Priority to JP13443791A priority patent/JP3238425B2/ja
Publication of NL9001300A publication Critical patent/NL9001300A/nl
Priority to US07/957,469 priority patent/US5396208A/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
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • 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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
    • 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
    • G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
NL9001300A 1990-06-08 1990-06-08 Magneetstelsel voor magnetische resonantie. NL9001300A (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL9001300A NL9001300A (nl) 1990-06-08 1990-06-08 Magneetstelsel voor magnetische resonantie.
EP91201370A EP0460762B1 (en) 1990-06-08 1991-06-04 Magnet system for magnetic resonance imaging
KR1019910009188A KR920001214A (ko) 1990-06-08 1991-06-04 자기 공명 영상용 자석 시스템
DE69130590T DE69130590T2 (de) 1990-06-08 1991-06-04 Magnetsystem für Kernspinresonanz
JP13443791A JP3238425B2 (ja) 1990-06-08 1991-06-05 磁気共鳴画像用磁石装置
US07/957,469 US5396208A (en) 1990-06-08 1992-10-06 Magnet system for magnetic resonance imaging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9001300 1990-06-08
NL9001300A NL9001300A (nl) 1990-06-08 1990-06-08 Magneetstelsel voor magnetische resonantie.

Publications (1)

Publication Number Publication Date
NL9001300A true NL9001300A (nl) 1992-01-02

Family

ID=19857214

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9001300A NL9001300A (nl) 1990-06-08 1990-06-08 Magneetstelsel voor magnetische resonantie.

Country Status (6)

Country Link
US (1) US5396208A (ja)
EP (1) EP0460762B1 (ja)
JP (1) JP3238425B2 (ja)
KR (1) KR920001214A (ja)
DE (1) DE69130590T2 (ja)
NL (1) NL9001300A (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412755C2 (de) * 1994-04-13 1996-09-05 Bruker Analytische Messtechnik Magnetsystem für die NMR-Tomographie
DE69519121T2 (de) * 1994-04-13 2001-05-17 Oxford Magnet Technology Ltd., Eynsham Verbesserungen an oder mit Bezug auf Geräte zur Bilderzeugung durch magnetische Resonanz
DE4416907C1 (de) * 1994-05-13 1995-09-07 Bruker Analytische Messtechnik Therapietomograph mit Homogenisierungseinrichtung
DE4424580C2 (de) * 1994-07-13 1996-09-05 Bruker Analytische Messtechnik NMR-Scheibenspule
GB2295672B (en) * 1994-11-29 1999-05-12 Oxford Magnet Tech Improvements in or relating to cryogenic MRI magnets
GB2295673B (en) * 1994-11-29 1999-04-28 Oxford Magnet Tech Improvements in or relating to cryogenic mri magnets
US5594401A (en) * 1996-02-20 1997-01-14 General Electric Company Closed superconductive magnet with uniform imaging volume
US5721523A (en) * 1996-08-26 1998-02-24 General Electric Company Compact MRI superconducting magnet
US6255822B1 (en) * 1998-10-09 2001-07-03 U.S. Philips Corporation MRI apparatus having a short uniform field magnet with an internal space
EP1051636A1 (en) * 1998-11-27 2000-11-15 Koninklijke Philips Electronics N.V. Magnetic resonance imaging system
JP2000247946A (ja) 1999-02-26 2000-09-12 Fuji Photo Film Co Ltd グアニジン化合物および感熱記録材料
US6335670B1 (en) * 2000-04-14 2002-01-01 Marconi Medical Systems Finland, Inc. Mri system with split rose ring with high homogeneity
DE10104054C1 (de) * 2001-01-31 2002-07-04 Bruker Ag Faellanden Magnetanordnung mit einem supraleitenden Magnetspulensystem und einer magnetischen Feldformvorrichtung für hochauflösende magnetische Resonanzspektroskopie und Verfahren zur Bestimmung von Fertigungstoleranzen der Feldformvorrichtung
US7295012B1 (en) * 2006-04-28 2007-11-13 General Electric Company Methods and apparatus for MRI shim elements
GB0712421D0 (en) * 2007-06-26 2007-08-08 Oxford Instr Plc Magnet system for use in magnetic resonance imaging
JP4990194B2 (ja) * 2008-03-07 2012-08-01 株式会社神戸製鋼所 磁石位置測定方法
US8698565B2 (en) 2010-06-02 2014-04-15 Skyworks Solutions, Inc. Dynamic voltage-controlled oscillator calibration and selection

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587504A (en) * 1983-11-11 1986-05-06 Oxford Magnet Technology Limited Magnet assembly for use in NMR apparatus
JPH0640869B2 (ja) * 1984-01-18 1994-06-01 株式会社日立メディコ Νｍｒイメ−ジング装置
GB8410972D0 (en) * 1984-04-30 1984-06-06 Oxford Magnet Tech Magnet assembly
NL8502340A (nl) * 1985-08-26 1987-03-16 Philips Nv Magnetisch resonantie apparaat met veld homogeniserende magnetische elementen.
GB8530295D0 (en) * 1985-12-09 1986-01-22 Picker Int Ltd Electromagnet arrangements
JPS62264606A (ja) * 1986-05-07 1987-11-17 Toshiba Corp 磁場補正用コイル装置
JPS6316604A (ja) * 1986-07-09 1988-01-23 Toshiba Corp コイル装置
US4698611A (en) * 1986-12-03 1987-10-06 General Electric Company Passive shimming assembly for MR magnet
WO1988008126A1 (en) * 1987-04-15 1988-10-20 Oxford Magnet Technology Limited Magnetic field generating apparatus
JPS6454714A (en) * 1987-08-26 1989-03-02 Hitachi Ltd Active shield type superconducting magnet device
JPS6458247A (en) * 1987-08-29 1989-03-06 Fuji Electric Co Ltd Uniform magnetic field coil
JPH01243503A (ja) * 1988-03-25 1989-09-28 Toshiba Corp 磁気共鳴イメージング装置用静磁界磁石
JPH0690975B2 (ja) * 1988-06-03 1994-11-14 三菱電機株式会社 磁場補正用磁性体シム
US5136273A (en) * 1988-10-17 1992-08-04 Kabushiki Kaisha Toshiba Magnet apparatus for use in a magnetic resonance imaging system
US5001447A (en) * 1989-08-23 1991-03-19 General Electric Company Ferromagnetic compensation rings for high field strength magnets

Also Published As

Publication number Publication date
JP3238425B2 (ja) 2001-12-17
JPH04269942A (ja) 1992-09-25
KR920001214A (ko) 1992-01-30
DE69130590T2 (de) 1999-06-24
EP0460762B1 (en) 1998-12-09
DE69130590D1 (de) 1999-01-21
EP0460762A1 (en) 1991-12-11
US5396208A (en) 1995-03-07

Similar Documents

Publication Publication Date Title
NL9001300A (nl) Magneetstelsel voor magnetische resonantie.
EP0139308B1 (en) Nuclear magnetic resonance apparatus
US5198769A (en) Tesseral gradient coil for a nuclear magnetic resonance tomography apparatus
EP0687920B1 (en) MRI magnet
EP0138270B1 (en) Nuclear magnetic resonance apparatus
US5708362A (en) Magnet arrangement for a diagnostic magnetic resonance apparatus
JPH04287903A (ja) 磁石組立体
US5266913A (en) Screened electromagnetic coil of restricted length having optimized field and method
EP0937994B1 (en) Open and shielded supercondutive magnet
US5426366A (en) Magnetic resonance apparatus comprising a superconducting magnet
EP0488464B1 (en) Magnetic resonance apparatus comprising a superconducting shielding magnet
NL8701949A (nl) Magnetisch resonantie apparaat met geintegreerde gradient-rf spoelen.
US6351123B1 (en) Gradient coil system for a magnetic resonance tomography apparatus
NL8402249A (nl) Kernspin resonantie apparaat met een permanente magnetische magneet.
JP3801564B2 (ja) 横磁界を有する開放型超伝導ｍｒｉ磁石
US6218923B1 (en) Magnet having shielding
US5786694A (en) Gradient coil system for use in a diagnostic magnetic resonance apparatus
EP0210289A1 (en) Superconducting filter coils for high homogeneity magnetic field
US4635017A (en) Magnetic apparatus of a system for nuclear spin tomography with a shielding device
JPH04105307A (ja) 超電導マグネット装置
EP0407384B1 (en) Magnet assembly
WO2000033100A1 (en) Magnetic resonance imaging system
EP1576382B1 (en) Self-shielded gradient coil arrangements with minimised risk of partial discharge
US6215383B1 (en) Magnet with shielding
EP0826978A1 (en) Closed MRI magnet having compact design

Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed