JPS6437814A - Superconducting magnet of nuclear magnetic resonance tomographer - Google Patents

Superconducting magnet of nuclear magnetic resonance tomographer

Info

Publication number
JPS6437814A
JPS6437814A JP63177967A JP17796788A JPS6437814A JP S6437814 A JPS6437814 A JP S6437814A JP 63177967 A JP63177967 A JP 63177967A JP 17796788 A JP17796788 A JP 17796788A JP S6437814 A JPS6437814 A JP S6437814A
Authority
JP
Japan
Prior art keywords
current
superconducting
coils
limiter
coil
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.)
Granted
Application number
JP63177967A
Other languages
English (en)
Other versions
JP2609295B2 (ja
Inventor
Raihieruto Toomasu
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Publication of JPS6437814A publication Critical patent/JPS6437814A/ja
Application granted granted Critical
Publication of JP2609295B2 publication Critical patent/JP2609295B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/001—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for superconducting apparatus, e.g. coils, lines, machines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/006—Supplying energising or de-energising current; Flux pumps
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
    • 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
    • Y10S336/00—Inductor devices
    • Y10S336/01—Superconductive
    • 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
    • Y10S505/842—Measuring and testing
    • Y10S505/843—Electrical
    • Y10S505/844—Nuclear magnetic resonance, NMR, system or device
    • 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
    • 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
    • Y10S505/88—Inductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
JP63177967A 1987-07-17 1988-07-15 核磁気共鳴断層像装置の超伝導磁石 Expired - Lifetime JP2609295B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723741.1 1987-07-17
DE3723741 1987-07-17

Publications (2)

Publication Number Publication Date
JPS6437814A true JPS6437814A (en) 1989-02-08
JP2609295B2 JP2609295B2 (ja) 1997-05-14

Family

ID=6331825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63177967A Expired - Lifetime JP2609295B2 (ja) 1987-07-17 1988-07-15 核磁気共鳴断層像装置の超伝導磁石

Country Status (4)

Country Link
US (1) US4926289A (ja)
EP (1) EP0299325B1 (ja)
JP (1) JP2609295B2 (ja)
DE (1) DE3866978D1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075235A (ja) * 1992-12-11 1995-01-10 Philips Electron Nv 超電導性磁石を有する磁気共鳴装置
EP2026083A2 (en) 2007-08-07 2009-02-18 Hitachi Ltd. Active shield superconducting electromagnet apparatus for MRI with improved quench protection

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606624A1 (fr) * 1986-11-14 1988-05-20 Thomson Cgr Installation d'imagerie par resonance magnetique nucleaire
DE4017270A1 (de) * 1990-05-29 1991-12-05 Siemens Ag Aktiv geschirmter supraleitender magnet
GB9016183D0 (en) * 1990-07-24 1990-09-05 Oxford Magnet Tech Magnet assembly
GB9016184D0 (en) * 1990-07-24 1990-09-05 Oxford Magnet Tech Magnet assembly
US5278380A (en) * 1990-12-03 1994-01-11 Westinghouse Electric Corp. Superconducting magnet system with inductive quench heaters
DE4106859A1 (de) * 1991-03-04 1992-09-10 Magnet Motor Gmbh Induktiver, supraleitender stromspeicher
GB2298282B (en) * 1995-02-23 1999-08-25 Elscint Ltd Quench protection for actively shielded magnets
CA2273150A1 (en) 1996-12-02 1998-06-11 The Trustees Of Columbia University Multiple resonance superconducting probe
WO1998033665A1 (en) * 1997-02-03 1998-08-06 The Trustees Of Columbia University In The City Of New York Formation of superconducting devices using a selective etching technique
US6307370B1 (en) 1999-07-02 2001-10-23 Bruker Ag Active shielded superconducting assembly with improved compensation of magentic field disturbances
US6369464B1 (en) 1999-07-02 2002-04-09 Bruker Ag Active shielded superconducting assembly with compensation of magnetic field disturbances
DE10041677C2 (de) * 2000-08-24 2002-07-11 Bruker Ag Faellanden Zusätzliche Strompfade zur Optimierung des Störverhaltens einer supraleitenden Magnetanordnung und Verfahren zu deren Dimensionierung
JP2004531052A (ja) * 2001-01-17 2004-10-07 アイジーシー−スーパーパワー、リミテッド　ライアビリティー　カンパニー マトリクス型超伝導障害電流制限器
US6777938B2 (en) * 2001-11-15 2004-08-17 Bruker Biospin Gmbh NMR magnet coil system with separate superconducting short-circuited regions for drift compensation as well as method for operation thereof
US7023673B2 (en) * 2002-12-23 2006-04-04 The University Of Chicago Superconducting shielded core reactor with reduced AC losses
US6960914B2 (en) * 2003-06-27 2005-11-01 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for imaging systems
US7359164B2 (en) * 2003-06-30 2008-04-15 Super Power, Inc Superconducting matrix fault current limiter with current-driven trigger mechanism
US7116535B2 (en) * 2004-04-16 2006-10-03 General Electric Company Methods and apparatus for protecting an MR imaging system
DE102005040374B4 (de) * 2005-08-25 2008-10-02 Bruker Biospin Ag Supraleitende Magnetanordnung mit kontaktierbaren Widerstandselementen
JP4610449B2 (ja) 2005-09-01 2011-01-12 株式会社日立製作所 磁石装置
US7701677B2 (en) * 2006-09-07 2010-04-20 Massachusetts Institute Of Technology Inductive quench for magnet protection
GB2442750B (en) * 2006-10-10 2010-09-15 Siemens Magnet Technology Ltd Shimming of Magnet Systems
FR2923648B1 (fr) 2007-11-12 2009-12-18 Commissariat Energie Atomique Systeme de creation d'un champ magnetique via un aimant supra-conducteur
GB2457231B (en) * 2008-02-05 2010-01-06 Siemens Magnet Technology Ltd Switch recloser comprising a persistent switch system
EP3465245A1 (en) 2016-06-07 2019-04-10 Koninklijke Philips N.V. Cryogenic field sensing for compensating magnetic field variations in magnetic resonance imaging magnets

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978664A (en) * 1958-11-05 1961-04-04 Texas Instruments Inc Resistive element
US3466504A (en) * 1967-06-28 1969-09-09 Gen Electric Continuous shunt protection means for superconducting solenoids
GB1404682A (en) * 1972-01-12 1975-09-03 Oxford Instr Co Ltd Superconducting magnets and leads thereto
US4237507A (en) * 1978-07-11 1980-12-02 Gosudarstvenny Nauchnoissledovatelsky Energetichesky Institut Imeni G. M. Krzhizhanovskogo Superconducting magnetic system
US4535291A (en) * 1982-08-09 1985-08-13 Varian Associates, Inc. Method for superconducting magnet shimming
DE3303449A1 (de) * 1983-02-02 1984-08-02 Siemens AG, 1000 Berlin und 8000 München Schutzeinrichtung fuer eine supraleitende magnetspulenanordnung
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
US4713722A (en) * 1985-07-20 1987-12-15 Kabushiki Kaisha Toshiba Superconducting system and method for controlling the same
US4680666A (en) * 1986-04-07 1987-07-14 General Electric Company MR magnet wiring harness circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075235A (ja) * 1992-12-11 1995-01-10 Philips Electron Nv 超電導性磁石を有する磁気共鳴装置
EP2026083A2 (en) 2007-08-07 2009-02-18 Hitachi Ltd. Active shield superconducting electromagnet apparatus for MRI with improved quench protection
JP2009039183A (ja) * 2007-08-07 2009-02-26 Hitachi Ltd アクティブシールド型の超電導電磁石装置および磁気共鳴イメージング装置

Also Published As

Publication number Publication date
EP0299325A1 (de) 1989-01-18
DE3866978D1 (de) 1992-01-30
EP0299325B1 (de) 1991-12-18
JP2609295B2 (ja) 1997-05-14
US4926289A (en) 1990-05-15

Similar Documents

Publication Publication Date Title
JPS6437814A (en) Superconducting magnet of nuclear magnetic resonance tomographer
EP0350916A3 (en) Superconducting switch and current limiter using such a switch
EP0231879A3 (en) Self-shielded gradient coils for nuclear magnetic resonance imaging
CA2089181A1 (en) High symmetry dc squid system
GB853463A (en) Superconductive switching device
CA2156446A1 (en) Position Indicating Magnetic Metal Detector
JPS647503A (en) Permanent magnet with high thermal stability
GB2355799B (en) Magnet with improved access
GB1163027A (en) An Electrical current-limiting Arrangement
JPS6430206A (en) Superconducting electromagnet
CA2057454A1 (en) Pickup coil for measurement of magnetic fields
JPS642300A (en) Electron storage ring
ES8705165A1 (es) Perfeccionamientos en un aparato limitador de corriente
JPS6457183A (en) Pickup coil for squid fluxmeter
JPS633616A (ja) 故障電流検出装置
JPS6411308A (en) Magnetic field generation device
JPS6476711A (en) Superconducting transformer
SU518079A1 (ru) Сверхпровод щий выключатель
JPS53126136A (en) Detector circuit for anomalous current
JPS6481304A (en) Method of making permanent current flow through superconducting coil and superconducting magnet device
JPS6461005A (en) Magnetic resonance imaging magnet
JPS6411309A (en) Superconducting magnet
RU93021474A (ru) Бесконтактный импульсный высокотемпературный сверхпроводящий ключ
JPS6426329A (en) Current limiting and interrupting device
JPS57117208A (en) Exciting method for superconduction magnet

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080213

Year of fee payment: 11

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090213

Year of fee payment: 12

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090213

Year of fee payment: 12