JP2011115415A5 - - Google Patents

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Publication number
JP2011115415A5
JP2011115415A5 JP2009276122A JP2009276122A JP2011115415A5 JP 2011115415 A5 JP2011115415 A5 JP 2011115415A5 JP 2009276122 A JP2009276122 A JP 2009276122A JP 2009276122 A JP2009276122 A JP 2009276122A JP 2011115415 A5 JP2011115415 A5 JP 2011115415A5
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Japan
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magnetic field
coils
translated
unit distance
axis direction
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JP2009276122A
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Japanese (ja)
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JP5566085B2 (en
JP2011115415A (en
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Publication of JP2011115415A5 publication Critical patent/JP2011115415A5/ja
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ステップS201では、メインコイル24c〜26cをZ軸方向に単位距離だけ平行移動させたとき、或いは、シールドコイル27b〜29bをZ軸方向に単位距離だけ平行移動、或いは円周方向(θ方向)に回転移動させたときの、磁場計測点35cにおける磁場或いは正規化磁場の変化率を、実測或いは計算により求める。本ステップは、同じ型のコイルを複数個製造するのであれば、最初に一度だけ行えばよい。 In step S201, when the main coils 24c to 26c are translated by a unit distance in the Z-axis direction, or the shield coils 27b to 29b are translated by a unit distance in the Z-axis direction, or in the circumferential direction (θ direction). The rate of change of the magnetic field or normalized magnetic field at the magnetic field measurement point 35c when rotated is obtained by actual measurement or calculation . This step need only be performed once at the beginning if a plurality of coils of the same type are manufactured.

JP2009276122A 2009-12-04 2009-12-04 Gradient magnetic field coil for magnetic resonance imaging apparatus and magnetic resonance imaging apparatus using the same Active JP5566085B2 (en)

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Application Number Priority Date Filing Date Title
JP2009276122A JP5566085B2 (en) 2009-12-04 2009-12-04 Gradient magnetic field coil for magnetic resonance imaging apparatus and magnetic resonance imaging apparatus using the same

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Application Number Priority Date Filing Date Title
JP2009276122A JP5566085B2 (en) 2009-12-04 2009-12-04 Gradient magnetic field coil for magnetic resonance imaging apparatus and magnetic resonance imaging apparatus using the same

Publications (3)

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JP2011115415A JP2011115415A (en) 2011-06-16
JP2011115415A5 true JP2011115415A5 (en) 2013-01-10
JP5566085B2 JP5566085B2 (en) 2014-08-06

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5891063B2 (en) * 2012-02-17 2016-03-22 株式会社日立メディコ Magnetic resonance imaging system
JP5819215B2 (en) * 2012-02-17 2015-11-18 株式会社日立メディコ Gradient magnetic field coil and magnetic resonance imaging apparatus
CN108344957B (en) * 2018-03-01 2023-05-12 湖北第二师范学院 Novel magnetic field measuring instrument
KR102445425B1 (en) 2019-03-25 2022-09-20 프로맥소 인크. Single-sided high-speed MRI gradient field coils and their applications
CN115047388B (en) * 2021-03-09 2023-10-17 宁波健信超导科技股份有限公司 Manufacturing and assembling method of magnetic resonance imaging gradient coil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3702022B2 (en) * 1996-02-09 2005-10-05 株式会社東芝 Gradient field coil
JP3702047B2 (en) * 1996-08-05 2005-10-05 株式会社東芝 Gradient field coil
JP4360662B2 (en) * 1999-11-26 2009-11-11 株式会社日立メディコ Magnetic resonance imaging system
JP4551522B2 (en) * 2000-02-07 2010-09-29 株式会社東芝 MRI equipment
CN1695067A (en) * 2001-12-17 2005-11-09 皇家飞利浦电子股份有限公司 Gradient coil arrangement
US20100060282A1 (en) * 2006-05-25 2010-03-11 Koninklijke Philips Electronics N. V. Three-dimensional asymmetric transverse gradient coils
JP5028062B2 (en) * 2006-10-06 2012-09-19 株式会社日立メディコ Active shield type gradient coil for magnetic resonance imaging system

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