DE3784755D1 - Draehte-schutzkreis fuer einen kernresonanzmagneten. - Google Patents

Draehte-schutzkreis fuer einen kernresonanzmagneten.

Info

Publication number
DE3784755D1
DE3784755D1 DE8787104871T DE3784755T DE3784755D1 DE 3784755 D1 DE3784755 D1 DE 3784755D1 DE 8787104871 T DE8787104871 T DE 8787104871T DE 3784755 T DE3784755 T DE 3784755T DE 3784755 D1 DE3784755 D1 DE 3784755D1
Authority
DE
Germany
Prior art keywords
reson
nuclear
magnet
protection circuit
wire protection
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
DE8787104871T
Other languages
English (en)
Other versions
DE3784755T2 (de
Inventor
Pedro Agustin Rios
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of DE3784755D1 publication Critical patent/DE3784755D1/de
Publication of DE3784755T2 publication Critical patent/DE3784755T2/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
    • H01F5/00—Coils
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/02—Quenching; Protection arrangements during quenching
    • 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
    • Y10S505/851—Control circuit for electromagnetic device

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
DE8787104871T 1986-04-07 1987-04-02 Draehte-schutzkreis fuer einen kernresonanzmagneten. Expired - Fee Related DE3784755T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/848,552 US4680666A (en) 1986-04-07 1986-04-07 MR magnet wiring harness circuit

Publications (2)

Publication Number Publication Date
DE3784755D1 true DE3784755D1 (de) 1993-04-22
DE3784755T2 DE3784755T2 (de) 1993-08-12

Family

ID=25303610

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787104871T Expired - Fee Related DE3784755T2 (de) 1986-04-07 1987-04-02 Draehte-schutzkreis fuer einen kernresonanzmagneten.

Country Status (5)

Country Link
US (1) US4680666A (de)
EP (1) EP0240935B1 (de)
JP (1) JPS62265706A (de)
KR (1) KR900008383B1 (de)
DE (1) DE3784755T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299325B1 (de) * 1987-07-17 1991-12-18 Siemens Aktiengesellschaft Aktiv geschirmter, supraleitender Magnet eines Kernspin-Tomographen
GB8724824D0 (en) * 1987-10-23 1987-11-25 Oxford Magnet Tech Magnet assembly
US4764837A (en) * 1987-11-16 1988-08-16 General Electric Company Superconductive circuit for controlling quench events
US4794338A (en) * 1987-11-25 1988-12-27 General Electric Company Balanced self-shielded gradient coils
US5216568A (en) * 1988-09-08 1993-06-01 Mitsubishi Denki Kabushiki Kaisha Superconducting magnet device
DE4007265A1 (de) * 1990-03-08 1991-09-12 Bruker Analytische Messtechnik Supraleitende magnetspulenanordnung
JPH04105307A (ja) * 1990-08-24 1992-04-07 Mitsubishi Electric Corp 超電導マグネット装置
US5426366A (en) * 1992-12-11 1995-06-20 U.S. Philips Corporation Magnetic resonance apparatus comprising a superconducting magnet
GB2298282B (en) * 1995-02-23 1999-08-25 Elscint Ltd Quench protection for actively shielded magnets
US5650903A (en) * 1995-11-30 1997-07-22 General Electric Company Superconducting-magnet electrical circuit having voltage and quench protection
US5668516A (en) * 1995-12-29 1997-09-16 General Electric Company Simplified active shield superconducting magnet assembly for magnetic resonance imaging
US6717781B2 (en) 2001-09-25 2004-04-06 Ge Medical Systems Global Technology Company, Llc Balanced quench protection circuit
JP2006286795A (ja) * 2005-03-31 2006-10-19 Sumitomo Heavy Ind Ltd 超伝導磁石装置
WO2013017159A1 (en) * 2011-08-01 2013-02-07 Alstom Technology Ltd Current limiter
CN102361318B (zh) * 2011-09-09 2014-01-22 中国科学院电工研究所 带有辅助超导开关的超导磁体失超保护装置
US8482369B2 (en) * 2011-10-31 2013-07-09 General Electric Company Single switch dump resistor ladder network for magnet quench protection
JP2015079846A (ja) * 2013-10-17 2015-04-23 株式会社日立製作所 超電導磁石装置
JP2017011236A (ja) * 2015-06-26 2017-01-12 株式会社神戸製鋼所 多層磁気シールド
GB2545436B (en) * 2015-12-15 2018-04-11 Siemens Healthcare Ltd A cylindrical superconducting magnet with a shield of ferromagnetic material
CN111009374B (zh) * 2019-12-13 2021-11-30 中国科学院电工研究所 一种具有紧凑线圈结构的核磁共振超导磁体

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263133A (en) * 1966-07-26 Superconducting magnet
US3488561A (en) * 1965-03-23 1970-01-06 Varian Associates Apparatus for controlling magnetic fields
JPS60763B2 (ja) * 1976-09-21 1985-01-10 三菱電機株式会社 超電導トロイダルマグネツト

Also Published As

Publication number Publication date
JPS62265706A (ja) 1987-11-18
DE3784755T2 (de) 1993-08-12
EP0240935B1 (de) 1993-03-17
KR870010575A (ko) 1987-11-30
US4680666A (en) 1987-07-14
EP0240935A3 (en) 1988-11-30
JPH0335804B2 (de) 1991-05-29
KR900008383B1 (ko) 1990-11-17
EP0240935A2 (de) 1987-10-14

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8328 Change in the person/name/address of the agent

Free format text: VOIGT, R., DIPL.-ING., PAT.-ANW., 6232 BAD SODEN

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee