CN1611961B - 包括至少一个磁极片的成像系统与磁共振成像系统 - Google Patents
包括至少一个磁极片的成像系统与磁共振成像系统 Download PDFInfo
- Publication number
- CN1611961B CN1611961B CN2004100858837A CN200410085883A CN1611961B CN 1611961 B CN1611961 B CN 1611961B CN 2004100858837 A CN2004100858837 A CN 2004100858837A CN 200410085883 A CN200410085883 A CN 200410085883A CN 1611961 B CN1611961 B CN 1611961B
- Authority
- CN
- China
- Prior art keywords
- sheet
- grain orientation
- easy axis
- pole piece
- orientation sheet
- 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
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 25
- 238000002595 magnetic resonance imaging Methods 0.000 title claims description 45
- 238000003475 lamination Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 2
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 abstract description 22
- 230000004907 flux Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 6
- 229910018619 Si-Fe Inorganic materials 0.000 description 5
- 229910008289 Si—Fe Inorganic materials 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 4
- 230000002459 sustained effect Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 230000005381 magnetic domain Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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
- G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/699185 | 2003-10-31 | ||
| US10/699,185 US6937018B2 (en) | 2003-10-31 | 2003-10-31 | Systems and methods for fabricating pole pieces for magnetic resonance imaging systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611961A CN1611961A (zh) | 2005-05-04 |
| CN1611961B true CN1611961B (zh) | 2010-06-16 |
Family
ID=34550878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100858837A Expired - Fee Related CN1611961B (zh) | 2003-10-31 | 2004-11-01 | 包括至少一个磁极片的成像系统与磁共振成像系统 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6937018B2 (enExample) |
| JP (1) | JP4783564B2 (enExample) |
| CN (1) | CN1611961B (enExample) |
| IT (1) | ITMI20041983A1 (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4051301B2 (ja) * | 2003-02-12 | 2008-02-20 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 円形ポールピースおよびmri装置 |
| US20070132386A1 (en) * | 2005-12-12 | 2007-06-14 | Lg Electronics Inc. | Plasma display device |
| MX384149B (es) * | 2014-09-05 | 2025-03-14 | Hyperfine Inc | Aumento ferromagnético para formación de imagenes por resonancia magnética. |
| US10104816B2 (en) * | 2016-02-05 | 2018-10-16 | Taiwan Semiconductor Manufacturing Co., Ltd. | Board, semiconductor fabrication plant (FAB) and fabrication facility |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2875114A (en) * | 1957-04-12 | 1959-02-24 | Westinghouse Electric Corp | Iron-aluminum materials for magnetic applications |
| US3078198A (en) * | 1961-06-07 | 1963-02-19 | Westinghouse Electric Corp | Process for producing oriented silicon steel |
| US5317297A (en) * | 1990-07-02 | 1994-05-31 | The Regents Of The University Of California | MRI magnet with robust laminated magnetic circuit member and method of making same |
| CN1094834A (zh) * | 1993-01-15 | 1994-11-09 | 国际商业机械公司 | 多层铁硅铝磁合金膜以及铁硅铝磁合金籽晶层 |
| US6150819A (en) * | 1998-11-24 | 2000-11-21 | General Electric Company | Laminate tiles for an MRI system and method and apparatus for manufacturing the laminate tiles |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3248781A (en) * | 1961-02-27 | 1966-05-03 | Gen Electric | Method of making reactive transformers |
| EP0479514B1 (en) * | 1990-09-29 | 1998-07-01 | Sumitomo Special Metals Co., Ltd. | Magnetic field generating device used for MRI |
| JP2561591B2 (ja) * | 1991-12-27 | 1996-12-11 | 住友特殊金属株式会社 | Mri用磁界発生装置 |
| JPH0831635A (ja) * | 1994-07-08 | 1996-02-02 | Sumitomo Special Metals Co Ltd | Mri用磁界発生装置 |
| JP3016544B2 (ja) * | 1995-06-08 | 2000-03-06 | 信越化学工業株式会社 | 永久磁石磁気回路 |
| JP3073933B2 (ja) * | 1996-08-05 | 2000-08-07 | 住友特殊金属株式会社 | Mri用磁界発生装置 |
| DE69706388T2 (de) * | 1996-10-21 | 2002-02-14 | Kawasaki Steel Corp., Kobe | Kornorientiertes elektromagnetisches Stahlblech |
| WO1999046417A1 (fr) * | 1998-03-12 | 1999-09-16 | Nkk Corporation | Tole d'acier au silicium et son procede de fabrication |
| US6794973B1 (en) * | 1998-04-14 | 2004-09-21 | Sumitomo Special Metals Co., Ltd. | Magnetic field generating device for MRI |
| KR19990088437A (ko) * | 1998-05-21 | 1999-12-27 | 에모또 간지 | 철손이매우낮은고자속밀도방향성전자강판및그제조방법 |
| JP2000030932A (ja) * | 1998-07-09 | 2000-01-28 | Shin Etsu Chem Co Ltd | 永久磁石対向型磁気回路 |
| US6150818A (en) * | 1998-08-31 | 2000-11-21 | General Electric Company | Low eddy current and low hysteresis magnet pole faces in MR imaging |
| US6259252B1 (en) * | 1998-11-24 | 2001-07-10 | General Electric Company | Laminate tile pole piece for an MRI, a method manufacturing the pole piece and a mold bonding pole piece tiles |
| JP2000164429A (ja) * | 1998-11-26 | 2000-06-16 | Nippon Jiseizai Kogyo Kk | 磁性コア |
| JP2001358377A (ja) * | 2000-02-10 | 2001-12-26 | Toshiba Corp | 超磁歪材料とその製造方法、およびそれを用いた磁歪アクチュエータと磁歪センサ |
| JP2002220642A (ja) * | 2001-01-29 | 2002-08-09 | Kawasaki Steel Corp | 鉄損の低い方向性電磁鋼板およびその製造方法 |
-
2003
- 2003-10-31 US US10/699,185 patent/US6937018B2/en not_active Expired - Fee Related
-
2004
- 2004-10-19 IT IT001983A patent/ITMI20041983A1/it unknown
- 2004-10-29 JP JP2004315280A patent/JP4783564B2/ja not_active Expired - Fee Related
- 2004-11-01 CN CN2004100858837A patent/CN1611961B/zh not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2875114A (en) * | 1957-04-12 | 1959-02-24 | Westinghouse Electric Corp | Iron-aluminum materials for magnetic applications |
| US3078198A (en) * | 1961-06-07 | 1963-02-19 | Westinghouse Electric Corp | Process for producing oriented silicon steel |
| US5317297A (en) * | 1990-07-02 | 1994-05-31 | The Regents Of The University Of California | MRI magnet with robust laminated magnetic circuit member and method of making same |
| CN1094834A (zh) * | 1993-01-15 | 1994-11-09 | 国际商业机械公司 | 多层铁硅铝磁合金膜以及铁硅铝磁合金籽晶层 |
| US6150819A (en) * | 1998-11-24 | 2000-11-21 | General Electric Company | Laminate tiles for an MRI system and method and apparatus for manufacturing the laminate tiles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1611961A (zh) | 2005-05-04 |
| US20050093542A1 (en) | 2005-05-05 |
| US6937018B2 (en) | 2005-08-30 |
| ITMI20041983A1 (it) | 2005-01-19 |
| JP4783564B2 (ja) | 2011-09-28 |
| JP2005131410A (ja) | 2005-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20121101 |