JP2005118566A - 永久ｍｒｉ磁場発生器の中心磁場を調整するシステム及び方法 - Google Patents

永久ｍｒｉ磁場発生器の中心磁場を調整するシステム及び方法 Download PDF

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Publication number
JP2005118566A
JP2005118566A JP2004300863A JP2004300863A JP2005118566A JP 2005118566 A JP2005118566 A JP 2005118566A JP 2004300863 A JP2004300863 A JP 2004300863A JP 2004300863 A JP2004300863 A JP 2004300863A JP 2005118566 A JP2005118566 A JP 2005118566A
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JP
Japan
Prior art keywords
magnetic field
opposing
spacer
permanent magnet
central magnetic
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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.)
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JP2004300863A
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English (en)
Japanese (ja)
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JP2005118566A5 (enExample
Inventor
Bu-Xin Xu
ブー−シン・スー
Weijun Shen
ウエージュン・シェン
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GE Medical Systems Global Technology Co LLC
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GE Medical Systems Global Technology Co LLC
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Application filed by GE Medical Systems Global Technology Co LLC filed Critical GE Medical Systems Global Technology Co LLC
Publication of JP2005118566A publication Critical patent/JP2005118566A/ja
Publication of JP2005118566A5 publication Critical patent/JP2005118566A5/ja
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    • 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
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
    • 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
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2004300863A 2003-10-16 2004-10-15 永久ｍｒｉ磁場発生器の中心磁場を調整するシステム及び方法 Withdrawn JP2005118566A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/686,972 US6809619B1 (en) 2003-10-16 2003-10-16 System and method for adjusting magnetic center field for permanent MRI magnetic field generator

Publications (2)

Publication Number Publication Date
JP2005118566A true JP2005118566A (ja) 2005-05-12
JP2005118566A5 JP2005118566A5 (enExample) 2007-11-29

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ID=33160043

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JP2004300863A Withdrawn JP2005118566A (ja) 2003-10-16 2004-10-15 永久ｍｒｉ磁場発生器の中心磁場を調整するシステム及び方法

Country Status (4)

Country Link
US (1) US6809619B1 (enExample)
EP (1) EP1524531A3 (enExample)
JP (1) JP2005118566A (enExample)
CN (1) CN1611187A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100581454C (zh) * 2006-07-14 2010-01-20 Ge医疗系统环球技术有限公司 磁场发生器和mri装置
TW200817669A (en) * 2006-10-14 2008-04-16 Univ Nat Central Non-destructive testing method for a reinforcing bar and device thereof
US9135686B2 (en) * 2006-10-25 2015-09-15 The Invention Science Fund I Llc Distorting feature compensating
US7873234B2 (en) * 2006-11-09 2011-01-18 The Invention Science Fund I, Llc Input compensating for imaging distortion
US8041145B2 (en) 2006-11-17 2011-10-18 The Invention Science Fund I, Llc Distortion compensated imaging
US7667462B2 (en) * 2006-12-22 2010-02-23 Schlumberger Technology Corporation Nuclear magnetic resonance module
JP5535139B2 (ja) * 2011-06-30 2014-07-02 株式会社ヴァレオジャパン 近接センサ
CA3066755A1 (en) * 2014-09-05 2016-03-10 Hyperfine Research, Inc. Noise suppression methods and apparatus
US10539637B2 (en) 2016-11-22 2020-01-21 Hyperfine Research, Inc. Portable magnetic resonance imaging methods and apparatus
CN114496456B (zh) * 2022-03-04 2025-04-25 中车青岛四方机车车辆股份有限公司 一种集成悬浮电磁铁及直线电机、磁浮列车

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239005A (ja) * 1984-05-11 1985-11-27 Sumitomo Special Metals Co Ltd 磁界発生装置
US4943774A (en) * 1989-06-01 1990-07-24 General Atomics Magnetic field control apparatus
EP0883143B1 (en) * 1996-10-30 2008-09-17 Hitachi Medical Corporation Superconducting magnetic-field generating device
JP2953659B1 (ja) * 1998-08-06 1999-09-27 住友特殊金属株式会社 Ｍｒｉ用磁界発生装置およびその組立方法並びにそれに用いる磁石ユニットの組立方法
US6448772B1 (en) * 2000-10-06 2002-09-10 Sumitomo Special Metals Co., Ltd. Magnetic field adjusting apparatus, magnetic field adjusting method and recording medium
JP2003024296A (ja) * 2001-07-04 2003-01-28 Ge Medical Systems Global Technology Co Llc 静磁界調整方法およびｍｒｉ装置

Also Published As

Publication number Publication date
US6809619B1 (en) 2004-10-26
CN1611187A (zh) 2005-05-04
EP1524531A2 (en) 2005-04-20
EP1524531A3 (en) 2005-06-15

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