WO2005081008A3 - Magnetic field homogeneity control using a plurality of sub-coils connected in series and operating at various currents - Google Patents
Magnetic field homogeneity control using a plurality of sub-coils connected in series and operating at various currents Download PDFInfo
- Publication number
- WO2005081008A3 WO2005081008A3 PCT/GB2005/000366 GB2005000366W WO2005081008A3 WO 2005081008 A3 WO2005081008 A3 WO 2005081008A3 GB 2005000366 W GB2005000366 W GB 2005000366W WO 2005081008 A3 WO2005081008 A3 WO 2005081008A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subcoils
- series
- magnetic field
- sub
- operating
- Prior art date
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
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/387—Compensation of inhomogeneities
- G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0615732A GB2427695B (en) | 2004-02-12 | 2005-02-03 | Magnetic Resonance Apparatus And Method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0403186A GB0403186D0 (en) | 2004-02-12 | 2004-02-12 | Magnetic resonance apparatus and method |
GB0403186.0 | 2004-02-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005081008A2 WO2005081008A2 (en) | 2005-09-01 |
WO2005081008A3 true WO2005081008A3 (en) | 2005-10-06 |
Family
ID=32011833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2005/000366 WO2005081008A2 (en) | 2004-02-12 | 2005-02-03 | Magnetic field homogeneity control using a plurality of sub-coils connected in series and operating at various currents |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB0403186D0 (en) |
WO (1) | WO2005081008A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2442750B (en) * | 2006-10-10 | 2010-09-15 | Siemens Magnet Technology Ltd | Shimming of Magnet Systems |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689591A (en) * | 1985-01-04 | 1987-08-25 | Oxford Magnet Technology Limited | Magnet assemblies for use in magnetic resonance imaging |
EP0251342A2 (en) * | 1983-11-11 | 1988-01-07 | Oxford Medical Limited | Magnet assembly |
US4816962A (en) * | 1985-10-24 | 1989-03-28 | Mitsubishi Denki Kabushiki Kaisha | Uniform magnetic field coil |
US4945446A (en) * | 1987-06-23 | 1990-07-31 | Mitsubishi Denki Kabushiki Kaisha | Magnetic field compensating apparatus |
GB2329967A (en) * | 1997-08-05 | 1999-04-07 | Univ Queensland | Superconducting magnet with internal correction coils |
-
2004
- 2004-02-12 GB GB0403186A patent/GB0403186D0/en not_active Ceased
-
2005
- 2005-02-03 GB GB0615732A patent/GB2427695B/en not_active Expired - Fee Related
- 2005-02-03 WO PCT/GB2005/000366 patent/WO2005081008A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0251342A2 (en) * | 1983-11-11 | 1988-01-07 | Oxford Medical Limited | Magnet assembly |
US4689591A (en) * | 1985-01-04 | 1987-08-25 | Oxford Magnet Technology Limited | Magnet assemblies for use in magnetic resonance imaging |
US4816962A (en) * | 1985-10-24 | 1989-03-28 | Mitsubishi Denki Kabushiki Kaisha | Uniform magnetic field coil |
US4945446A (en) * | 1987-06-23 | 1990-07-31 | Mitsubishi Denki Kabushiki Kaisha | Magnetic field compensating apparatus |
GB2329967A (en) * | 1997-08-05 | 1999-04-07 | Univ Queensland | Superconducting magnet with internal correction coils |
Also Published As
Publication number | Publication date |
---|---|
GB2427695A (en) | 2007-01-03 |
GB0403186D0 (en) | 2004-03-17 |
GB0615732D0 (en) | 2006-09-20 |
GB2427695B (en) | 2007-11-14 |
WO2005081008A2 (en) | 2005-09-01 |
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