NL9002621A - Magnetisch resonantie apparaat met afschermende magneet. - Google Patents

Magnetisch resonantie apparaat met afschermende magneet. Download PDF

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Publication number
NL9002621A
NL9002621A NL9002621A NL9002621A NL9002621A NL 9002621 A NL9002621 A NL 9002621A NL 9002621 A NL9002621 A NL 9002621A NL 9002621 A NL9002621 A NL 9002621A NL 9002621 A NL9002621 A NL 9002621A
Authority
NL
Netherlands
Prior art keywords
magnetic
coil
coil system
shielding
superconducting
Prior art date
Application number
NL9002621A
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 NL9002621A priority Critical patent/NL9002621A/nl
Priority to DE69131708T priority patent/DE69131708T2/de
Priority to EP91203063A priority patent/EP0488464B1/fr
Priority to JP3312830A priority patent/JP3043494B2/ja
Priority to US07/800,200 priority patent/US5235282A/en
Publication of NL9002621A publication Critical patent/NL9002621A/nl

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
    • G01R33/42—Screening
    • G01R33/421—Screening of main or gradient magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
NL9002621A 1990-11-30 1990-11-30 Magnetisch resonantie apparaat met afschermende magneet. NL9002621A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL9002621A NL9002621A (nl) 1990-11-30 1990-11-30 Magnetisch resonantie apparaat met afschermende magneet.
DE69131708T DE69131708T2 (de) 1990-11-30 1991-11-22 Kernspinresonanzapparat mit einem supraleitenden Abschirmmagneten
EP91203063A EP0488464B1 (fr) 1990-11-30 1991-11-22 Appareil à résonance magnétique muni d'un aimant supraconducteur de blindage
JP3312830A JP3043494B2 (ja) 1990-11-30 1991-11-27 磁気共鳴装置
US07/800,200 US5235282A (en) 1990-11-30 1991-11-27 Magnetic resonance apparatus comprising a superconducting shielding magnet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9002621A NL9002621A (nl) 1990-11-30 1990-11-30 Magnetisch resonantie apparaat met afschermende magneet.
NL9002621 1990-11-30

Publications (1)

Publication Number Publication Date
NL9002621A true NL9002621A (nl) 1992-06-16

Family

ID=19858059

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9002621A NL9002621A (nl) 1990-11-30 1990-11-30 Magnetisch resonantie apparaat met afschermende magneet.

Country Status (5)

Country Link
US (1) US5235282A (fr)
EP (1) EP0488464B1 (fr)
JP (1) JP3043494B2 (fr)
DE (1) DE69131708T2 (fr)
NL (1) NL9002621A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5426366A (en) * 1992-12-11 1995-06-20 U.S. Philips Corporation Magnetic resonance apparatus comprising a superconducting magnet
US5635839A (en) * 1994-11-04 1997-06-03 Picker International, Inc. High order passive shimming assembly for MRI magnets
US5633587A (en) * 1995-02-14 1997-05-27 Kabushiki Kaisha Toshiba Magnetostatic field generating magnet for use in an MRI system having an active magnetic shield
US6097187A (en) * 1997-08-21 2000-08-01 Picker International, Inc. MRI magnet with fast ramp up capability for interventional imaging
DE19930412C1 (de) * 1999-07-02 2000-12-21 Bruker Ag Faellanden Aktiv abgeschirmte supraleitende Magnetanordnung mit Feldstörungskompensation
US20040041565A1 (en) * 2002-05-08 2004-03-04 Shigeru Kakugawa NMR magnet device for solution analysis and NMR apparatus
DE10354677B4 (de) 2003-11-22 2006-09-21 Bruker Biospin Gmbh Zusätzliche Streufeldabschirmung eines supraleitenden Magnetspulensystem
US7046005B2 (en) * 2003-12-22 2006-05-16 General Electric Company Method and apparatus for driver circuits for use in magnetic systems
US7064550B2 (en) * 2004-11-16 2006-06-20 General Electric Company Method and apparatus for field drift compensation of a superconducting magnet
JP4610449B2 (ja) 2005-09-01 2011-01-12 株式会社日立製作所 磁石装置
JP4928477B2 (ja) * 2008-01-23 2012-05-09 株式会社日立製作所 超電導磁石装置、およびこれを用いた磁気共鳴イメージング装置、並びに核磁気共鳴装置
DE102009004899B4 (de) * 2009-01-16 2015-09-24 Siemens Aktiengesellschaft Supraleitender aktiv geschirmter Magnet
FR2975497B1 (fr) * 2011-05-16 2013-06-28 Centre Nat Rech Scient Convertisseur electronique de puissance
DE102012203331B4 (de) * 2012-03-02 2015-08-27 Siemens Aktiengesellschaft Lokalschirm und Verfahren zur Abschirmung von Magnetresonanzsignalen
CN111417436B (zh) * 2019-02-02 2022-07-15 上海联影医疗科技股份有限公司 放射治疗系统和方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8303533A (nl) * 1983-10-14 1985-05-01 Koninkl Philips Electronics Nv Kernspinresonantie apparaat.
NL8303535A (nl) * 1983-10-14 1985-05-01 Philips Nv Kernspinresonantie apparaat.
US4587504A (en) * 1983-11-11 1986-05-06 Oxford Magnet Technology Limited Magnet assembly for use in NMR apparatus
AU579530B2 (en) * 1984-07-06 1988-11-24 Board Of Trustees Of The Leland Stanford Junior University Magnetic structure for NMR applications and the like
US4658229A (en) * 1985-05-10 1987-04-14 Ga Technologies Inc. Magnet system providing a region of substantially homogeneous field strength
US4689563A (en) * 1985-06-10 1987-08-25 General Electric Company High-field nuclear magnetic resonance imaging/spectroscopy system
US4974113A (en) * 1988-03-16 1990-11-27 President And Fellows Of Harvard College Shielding superconducting solenoids
US4812797A (en) * 1988-03-22 1989-03-14 General Electric Company Compensation coil for temporal drift of a superconducting magnet
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
NL8801162A (nl) * 1988-05-04 1989-12-01 Philips Nv Supergeleidend magneetstelsel met supergeleidende cylinders.
JPH0687447B2 (ja) * 1988-07-27 1994-11-02 三菱電機株式会社 超電導マグネツト装置

Also Published As

Publication number Publication date
US5235282A (en) 1993-08-10
JP3043494B2 (ja) 2000-05-22
EP0488464B1 (fr) 1999-10-13
EP0488464A1 (fr) 1992-06-03
JPH04299275A (ja) 1992-10-22
DE69131708D1 (de) 1999-11-18
DE69131708T2 (de) 2000-05-25

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A1B A search report has been drawn up
BV The patent application has lapsed