IL75479A0 - Optimal field inhomogeneity correction coil operation for nmr magnets - Google Patents

Optimal field inhomogeneity correction coil operation for nmr magnets

Info

Publication number
IL75479A0
IL75479A0 IL75479A IL7547985A IL75479A0 IL 75479 A0 IL75479 A0 IL 75479A0 IL 75479 A IL75479 A IL 75479A IL 7547985 A IL7547985 A IL 7547985A IL 75479 A0 IL75479 A0 IL 75479A0
Authority
IL
Israel
Prior art keywords
correction coil
field inhomogeneity
optimal field
coil operation
inhomogeneity correction
Prior art date
Application number
IL75479A
Other languages
English (en)
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IL75479A0 publication Critical patent/IL75479A0/xx

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
    • G01R33/389—Field stabilisation, e.g. by field measurements and control means or indirectly by current stabilisation
    • 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
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
IL75479A 1984-10-19 1985-06-11 Optimal field inhomogeneity correction coil operation for nmr magnets IL75479A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/662,744 US4523166A (en) 1984-10-19 1984-10-19 Optimal field inhomogeneity correction coil operation for NMR magnets

Publications (1)

Publication Number Publication Date
IL75479A0 true IL75479A0 (en) 1985-10-31

Family

ID=24659020

Family Applications (1)

Application Number Title Priority Date Filing Date
IL75479A IL75479A0 (en) 1984-10-19 1985-06-11 Optimal field inhomogeneity correction coil operation for nmr magnets

Country Status (6)

Country Link
US (1) US4523166A (enExample)
EP (1) EP0179370B1 (enExample)
JP (1) JPS6198247A (enExample)
CA (1) CA1218411A (enExample)
DE (1) DE3581166D1 (enExample)
IL (1) IL75479A0 (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4585992A (en) * 1984-02-03 1986-04-29 Philips Medical Systems, Inc. NMR imaging methods
IL72388A (en) * 1984-07-12 1988-07-31 Elscint Ltd Nmr imaging systems
US4680551A (en) * 1985-10-07 1987-07-14 General Electric Company Method for homogenizing a static magnetic field over an arbitrary volume
JPS62264606A (ja) * 1986-05-07 1987-11-17 Toshiba Corp 磁場補正用コイル装置
FR2598808B1 (fr) * 1986-05-13 1993-09-17 Thomson Cgr Procede de reglage des correcteurs d'homogeneite du champ magnetique cree par un aimant
GB8619012D0 (en) * 1986-08-04 1986-09-17 Picker Int Ltd Electromagnet arrangements
JPS63109849A (ja) * 1986-10-29 1988-05-14 株式会社日立メディコ Ｎｍｒイメ−ジング装置
US4761614A (en) * 1987-04-27 1988-08-02 Phospho-Energetics, Inc. Device and method for automatic shimming of NMR instrument
US4724412A (en) * 1987-08-03 1988-02-09 General Electric Company Method of determining coil arrangement of an actively shielded magnetic resonance magnet
JPH03501090A (ja) * 1987-11-05 1991-03-14 ユニバーシティー　オブ　クイーンスランド Ｎｍｒ分光器の磁界均質化方法
JPH01136645A (ja) * 1987-11-25 1989-05-29 Toshiba Corp 磁気共鳴イメージング装置
US4987371A (en) * 1989-11-27 1991-01-22 General Electric Company Method for in-vivo shimming
US5006804A (en) * 1989-12-04 1991-04-09 General Electric Company Method of optimizing shim coil current selection in magnetic resonance magnets
DE4210217C2 (de) * 1992-03-28 1994-03-24 Bruker Analytische Messtechnik Verfahren zum Bau einer optimierten Magnetspulenanordnung
US5343151A (en) * 1993-03-11 1994-08-30 Bruker Instruments, Inc. Method for automatically shimming a high resolution NMR magnet
DE4333440C1 (de) * 1993-09-30 1995-04-06 Siemens Ag Verfahren zur Shimmung eines Magnetfeldes in einem Untersuchungsraum eines Kernspinresonanzgerätes
US5410287A (en) * 1994-04-05 1995-04-25 General Electric Company Open MRI magnet with uniform magnetic field
US5428292A (en) * 1994-04-29 1995-06-27 General Electric Company Pancake MRI magnet with modified imaging volume
US5448214A (en) * 1994-06-15 1995-09-05 General Electric Company Open MRI magnet with superconductive shielding
US5677630A (en) * 1996-10-21 1997-10-14 General Electric Company Planar superconducting MRI magnet
US6064208A (en) * 1998-04-02 2000-05-16 Picker International, Inc. Two-peak alignment method of field shimming
JP4395556B2 (ja) * 2004-11-22 2010-01-13 独立行政法人 宇宙航空研究開発機構 磁力支持装置の制御定数自動調整方法
EP3379254B1 (en) 2017-03-20 2021-08-18 F. Hoffmann-La Roche AG Secondary solid waste container for solid waste of an analyzer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419904A (en) * 1966-05-05 1968-12-31 Varian Associates Superconductive solenoid having winding segments additionally energized for gradient control
US3577067A (en) * 1966-05-11 1971-05-04 Varian Associates Persistent mode superconductive orthogonal gradient cancelling coils
GB2027208B (en) * 1978-08-05 1982-12-15 Emi Ltd Magnetic field correction in nmr apparatus
US4284950A (en) * 1978-08-05 1981-08-18 E M I Limited Imaging systems
DE2840178A1 (de) * 1978-09-15 1980-03-27 Philips Patentverwaltung Magnetspulenanordnung zur erzeugung von linearen magnetischen gradientenfeldern
JPS60189905A (ja) * 1984-03-09 1985-09-27 Mitsubishi Electric Corp 高均一磁界発生装置

Also Published As

Publication number Publication date
CA1218411A (en) 1987-02-24
DE3581166D1 (de) 1991-02-07
EP0179370B1 (en) 1990-12-27
EP0179370A2 (en) 1986-04-30
JPS6198247A (ja) 1986-05-16
JPH0349256B2 (enExample) 1991-07-29
US4523166A (en) 1985-06-11
EP0179370A3 (en) 1987-10-14

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Legal Events

Date Code Title Description
RH Patent void