JP5068586B2 - Ｍｒ超伝導マグネットコイルを局所的に遮蔽するための方法及び装置 - Google Patents

Ｍｒ超伝導マグネットコイルを局所的に遮蔽するための方法及び装置 Download PDF

Info

Publication number
JP5068586B2
JP5068586B2 JP2007161188A JP2007161188A JP5068586B2 JP 5068586 B2 JP5068586 B2 JP 5068586B2 JP 2007161188 A JP2007161188 A JP 2007161188A JP 2007161188 A JP2007161188 A JP 2007161188A JP 5068586 B2 JP5068586 B2 JP 5068586B2
Authority
JP
Japan
Prior art keywords
gradient
arcuate
superconducting
magnetic field
superconducting magnet
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
JP2007161188A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008000604A5 (enExample
JP2008000604A (ja
Inventor
シャンルイ・ファン
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
Publication of JP2008000604A publication Critical patent/JP2008000604A/ja
Publication of JP2008000604A5 publication Critical patent/JP2008000604A5/ja
Application granted granted Critical
Publication of JP5068586B2 publication Critical patent/JP5068586B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G01R33/381—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
    • G01R33/42—Screening
    • G01R33/421—Screening of main or gradient magnetic field
    • G01R33/4215—Screening of main or gradient magnetic field of the gradient magnetic field, e.g. using passive or active shielding of the gradient magnetic field
    • 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
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
    • G01R33/3856—Means for cooling the gradient coils or thermal shielding of the gradient coils

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2007161188A 2006-06-22 2007-06-19 Ｍｒ超伝導マグネットコイルを局所的に遮蔽するための方法及び装置 Expired - Fee Related JP5068586B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/425,860 2006-06-22
US11/425,860 US7352183B2 (en) 2006-06-22 2006-06-22 Method and apparatus for locally shielding MR superconducting magnet coil

Publications (3)

Publication Number Publication Date
JP2008000604A JP2008000604A (ja) 2008-01-10
JP2008000604A5 JP2008000604A5 (enExample) 2011-08-04
JP5068586B2 true JP5068586B2 (ja) 2012-11-07

Family

ID=38721375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007161188A Expired - Fee Related JP5068586B2 (ja) 2006-06-22 2007-06-19 Ｍｒ超伝導マグネットコイルを局所的に遮蔽するための方法及び装置

Country Status (5)

Country Link
US (1) US7352183B2 (enExample)
JP (1) JP5068586B2 (enExample)
CN (1) CN101093248B (enExample)
DE (1) DE102007028833A1 (enExample)
NL (1) NL1033935C2 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7477055B1 (en) * 2007-08-21 2009-01-13 General Electric Company Apparatus and method for coupling coils in a superconducting magnet
DE102012203331B4 (de) * 2012-03-02 2015-08-27 Siemens Aktiengesellschaft Lokalschirm und Verfahren zur Abschirmung von Magnetresonanzsignalen
CN105308472B (zh) * 2013-06-17 2019-01-29 皇家飞利浦有限公司 磁共振成像梯度线圈
WO2017021765A1 (en) * 2015-08-06 2017-02-09 Synaptive Medical (Barbados) Inc. Local active gradient shielding
CN106291421B (zh) * 2016-09-23 2023-06-30 山东大学 适用于台阶法施工中核磁共振超前地质预报的发射线圈
EP3564694A1 (en) * 2018-04-30 2019-11-06 Koninklijke Philips N.V. Gradient shield coil with meandering winding for a magnetic resonance imaging apparatus
CN112748380B (zh) * 2019-10-29 2024-03-19 西门子(深圳)磁共振有限公司 用于磁共振成像装置的梯度线圈及磁共振成像装置
CN111580030B (zh) * 2020-05-13 2022-04-22 山东省肿瘤防治研究院（山东省肿瘤医院） 用于核磁共振与放疗相融合的磁场制备结构、设备及系统
EP4300123B1 (en) * 2022-06-29 2025-10-29 Siemens Healthcare Limited Magnetic resonance scanner with passively shielded gradient coil

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577067A (en) * 1966-05-11 1971-05-04 Varian Associates Persistent mode superconductive orthogonal gradient cancelling coils
US4881035A (en) * 1987-11-24 1989-11-14 Siemens Aktiengesellschaft Magnetic structural arrangement of an installation for nuclear magnetic resonance tomography with superconducting background field coils and normal-conducting gradient coils
JPH0226537A (ja) * 1988-07-14 1990-01-29 Mitsubishi Electric Corp 磁気共鳴装置
US5289128A (en) * 1992-03-27 1994-02-22 Picker International, Inc. Superconducting gradient shield coils
US5280247A (en) * 1992-03-27 1994-01-18 Picker International, Inc. Filamentary cold shield for superconducting magnets
JPH03182232A (ja) * 1989-12-11 1991-08-08 Toshiba Corp 磁気共鳴イメージング装置
US5539367A (en) * 1994-05-02 1996-07-23 General Electric Company Superconducting gradient shields in magnetic resonance imaging magnets
JPH08252235A (ja) * 1995-03-16 1996-10-01 Toshiba Corp 磁気共鳴映像装置
DE19527020C1 (de) * 1995-07-24 1997-02-20 Siemens Ag Tesserale Gradientenspule für Kernspintomographiegeräte
US5597423A (en) * 1995-12-20 1997-01-28 General Electric Company Niobium tin sheet for superconducting magnets
US5701075A (en) * 1996-01-04 1997-12-23 General Electric Company Magnetic resonance imaging shimming by superconducting gradient shield
JPH10256027A (ja) * 1997-03-10 1998-09-25 Toshiba Corp 超電導磁石システム
JP2000262486A (ja) * 1999-03-17 2000-09-26 Hitachi Ltd 静磁場発生装置及び方法
US6783059B2 (en) * 2002-12-23 2004-08-31 General Electric Company Conduction cooled passively-shielded MRI magnet

Also Published As

Publication number Publication date
NL1033935A1 (nl) 2008-01-02
DE102007028833A1 (de) 2007-12-27
US7352183B2 (en) 2008-04-01
NL1033935C2 (nl) 2010-01-26
JP2008000604A (ja) 2008-01-10
US20070296414A1 (en) 2007-12-27
CN101093248A (zh) 2007-12-26
CN101093248B (zh) 2012-09-05

Similar Documents

Publication Publication Date Title
JP5068586B2 (ja) Ｍｒ超伝導マグネットコイルを局所的に遮蔽するための方法及び装置
JP4950135B2 (ja) セラミック巻型を持つヒートパイプ冷却型超伝導磁石
JP6480732B2 (ja) Ｍｒｉシステムの機械的振動によって生じる磁場の歪みを補償するためのシステムおよび装置
JP5265899B2 (ja) 超伝導マグネット向けの高温超伝導電流リード
US7414401B1 (en) System and method for shielded dynamic shimming in an MRI scanner
US9274188B2 (en) System and apparatus for compensating for magnetic field distortion in an MRI system
US7116535B2 (en) Methods and apparatus for protecting an MR imaging system
US9810755B2 (en) System and method for energizing a superconducting magnet
JP2009106742A (ja) 磁気共鳴撮像システム向けのマグネットアセンブリ
JP5307354B2 (ja) ケーブル及び、ケーブルを製作する方法
US20140184226A1 (en) System and apparatus for active high order shimming
US20140184222A1 (en) Matrix shim coil apparatus
US8766635B2 (en) System and apparatus for balancing radial forces in a gradient coil
JP5020699B2 (ja) 超伝導マグネット向けの低ａｃ損失単一フィラメント超伝導体及びその製作方法
US7477055B1 (en) Apparatus and method for coupling coils in a superconducting magnet
JPH0268038A (ja) 磁気共鳴イメージング装置の超電導マグネット
JP2005027761A (ja) 磁気的状態維持装置、マグネットシステムおよび磁気共鳴撮影装置

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100616

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100616

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20100616

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110615

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120724

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120815

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

Free format text: PAYMENT UNTIL: 20150824

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5068586

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

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

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees