IL80135A0 - Method for homogenizing a static magnetic field over an arbitrary volume - Google Patents
Method for homogenizing a static magnetic field over an arbitrary volumeInfo
- Publication number
- IL80135A0 IL80135A0 IL80135A IL8013586A IL80135A0 IL 80135 A0 IL80135 A0 IL 80135A0 IL 80135 A IL80135 A IL 80135A IL 8013586 A IL8013586 A IL 8013586A IL 80135 A0 IL80135 A0 IL 80135A0
- Authority
- IL
- Israel
- Prior art keywords
- homogenizing
- magnetic field
- static magnetic
- field over
- arbitrary volume
- Prior art date
Links
- 230000003068 static effect Effects 0.000 title 1
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
- G01R33/387—Compensation of inhomogeneities
- G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
-
- 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
- G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/785,140 US4680551A (en) | 1985-10-07 | 1985-10-07 | Method for homogenizing a static magnetic field over an arbitrary volume |
Publications (1)
Publication Number | Publication Date |
---|---|
IL80135A0 true IL80135A0 (en) | 1986-12-31 |
Family
ID=25134570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL80135A IL80135A0 (en) | 1985-10-07 | 1986-09-24 | Method for homogenizing a static magnetic field over an arbitrary volume |
Country Status (6)
Country | Link |
---|---|
US (1) | US4680551A (xx) |
EP (1) | EP0219013A3 (xx) |
JP (1) | JPS62123705A (xx) |
KR (1) | KR910002654B1 (xx) |
CA (1) | CA1288806C (xx) |
IL (1) | IL80135A0 (xx) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4879516A (en) * | 1985-08-14 | 1989-11-07 | Picker International, Inc. | Precision electrical adjustment of quadrature coil isolation |
FR2598808B1 (fr) * | 1986-05-13 | 1993-09-17 | Thomson Cgr | Procede de reglage des correcteurs d'homogeneite du champ magnetique cree par un aimant |
GB8619012D0 (en) * | 1986-08-04 | 1986-09-17 | Picker Int Ltd | Electromagnet arrangements |
DE3628161A1 (de) * | 1986-08-20 | 1988-02-25 | Spectrospin Ag | Vorrichtung zum kompensieren von zeitvarianten feldstoerungen in magnetfeldern |
US4761614A (en) * | 1987-04-27 | 1988-08-02 | Phospho-Energetics, Inc. | Device and method for automatic shimming of NMR instrument |
JPS64714A (en) * | 1987-06-23 | 1989-01-05 | Mitsubishi Electric Corp | Magnetic field compensator |
WO1989004478A1 (en) * | 1987-11-05 | 1989-05-18 | University Of Queensland | Magnetic field homogenization in nmr spectroscopy |
US4950994A (en) * | 1988-03-07 | 1990-08-21 | General Electric Company | Gradient and polarizing field compensation |
US4812797A (en) * | 1988-03-22 | 1989-03-14 | General Electric Company | Compensation coil for temporal drift of a superconducting magnet |
US4820985A (en) * | 1988-04-06 | 1989-04-11 | General Electric Company | Apparatus for tuning an NMR field coil |
US4899109A (en) * | 1988-08-17 | 1990-02-06 | Diasonics Inc. | Method and apparatus for automated magnetic field shimming in magnetic resonance spectroscopic imaging |
US5023554A (en) * | 1989-05-22 | 1991-06-11 | The Reagents Of The University Of California | Fringe field MRI |
US5006804A (en) * | 1989-12-04 | 1991-04-09 | General Electric Company | Method of optimizing shim coil current selection in magnetic resonance magnets |
US5345178A (en) * | 1992-04-21 | 1994-09-06 | Siemens Aktiengesellschaft | Method for setting the current through shim coils and gradient coils in a nuclear magnetic resonance apparatus |
FR2693802B1 (fr) * | 1992-07-17 | 1994-09-16 | Sadis Bruker Spectrospin | Procédé de mesure et d'ajustement des gradients d'un appareil à résonance magnétique nucléaire et dispositif correspondant. |
US5490509A (en) * | 1993-03-18 | 1996-02-13 | The Regents Of The University Of California | Method and apparatus for MRI using selectively shaped image volume of homogeneous NMR polarizing field |
DE4333440C1 (de) * | 1993-09-30 | 1995-04-06 | Siemens Ag | Verfahren zur Shimmung eines Magnetfeldes in einem Untersuchungsraum eines Kernspinresonanzgerätes |
US5661401A (en) * | 1995-03-13 | 1997-08-26 | Jeol Ltd. | Apparatus for generating corrective magnetic field |
US5617029A (en) * | 1995-12-14 | 1997-04-01 | General Electric Company | Method of magnet shimming |
US6046144A (en) * | 1997-06-02 | 2000-04-04 | R.T. Vanderbilt Co., Inc. | Combination of phosphate based additives and sulfonate salts for hydraulic fluids and lubricating compositions |
US6023167A (en) * | 1998-01-26 | 2000-02-08 | Picker International, Inc. | Surface coils with integrated shims |
US6064208A (en) * | 1998-04-02 | 2000-05-16 | Picker International, Inc. | Two-peak alignment method of field shimming |
JP3878434B2 (ja) * | 2001-05-10 | 2007-02-07 | 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 | 磁気共鳴撮像用コイル構造体および磁気共鳴撮像装置 |
DE10147984B4 (de) * | 2001-09-28 | 2007-10-11 | Siemens Ag | Magnetresonanz-Untersuchungsgerät mit einer Einrichtung zur Erzeugung eines homogenen Magnetfeldes und Verfahren zur Verbesserung der Homogenität eines Magnetfeldes |
JP4040930B2 (ja) * | 2002-08-26 | 2008-01-30 | 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 | 磁場均一化方法および装置 |
US6794868B1 (en) * | 2003-06-20 | 2004-09-21 | Varian, Inc. | Method of shim optimization |
US6995559B2 (en) * | 2003-10-30 | 2006-02-07 | Ge Medical Systems Global Technology Company, Llc | Method and system for optimized pre-saturation in MR with corrected transmitter frequency of pre-pulses |
US7295012B1 (en) * | 2006-04-28 | 2007-11-13 | General Electric Company | Methods and apparatus for MRI shim elements |
DE102007009203B4 (de) * | 2007-02-26 | 2012-03-22 | Siemens Ag | Verfahren zur Bestimmung oder Anpassung eines Shims zur Homogenisierung eines Magnetfeldes einer Magnetresonanzeinrichtung und zugehörige Magnetresonanzeinrichtung |
EP2230530A1 (en) | 2009-03-20 | 2010-09-22 | Koninklijke Philips Electronics N.V. | A tesseral shim coil for a magnetic resonance system |
EP2425268B1 (en) * | 2009-04-30 | 2017-08-02 | Koninklijke Philips N.V. | Arrangement and method for influencing and/or detecting magnetic particles and for magnetic resonance imaging |
NZ599837A (en) * | 2009-12-02 | 2014-01-31 | Nanalysis Corp | Method and apparatus for producing homogeneous magnetic fields |
US9778334B2 (en) | 2014-05-07 | 2017-10-03 | Scott Technology Nz Limited | Magnetic shimming and magnet arrangements |
KR101624482B1 (ko) * | 2014-10-24 | 2016-05-26 | 한국표준과학연구원 | 원자 자력계 및 그 동작 방법 |
CN114325520B (zh) * | 2020-09-30 | 2024-07-19 | 西门子(深圳)磁共振有限公司 | 磁体升场方法及装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4581580A (en) * | 1983-12-14 | 1986-04-08 | General Electric Company | Intentionally non-orthogonal correction coils for high-homogeneity magnets |
JPS60189905A (ja) * | 1984-03-09 | 1985-09-27 | Mitsubishi Electric Corp | 高均一磁界発生装置 |
DE3411222A1 (de) * | 1984-03-27 | 1985-10-10 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Kernspintomograph |
US4506247A (en) * | 1984-05-23 | 1985-03-19 | General Electric Company | Axisymmetric correction coil system for NMR magnets |
US4523166A (en) * | 1984-10-19 | 1985-06-11 | General Electric Company | Optimal field inhomogeneity correction coil operation for NMR magnets |
-
1985
- 1985-10-07 US US06/785,140 patent/US4680551A/en not_active Expired - Lifetime
-
1986
- 1986-09-08 JP JP61209790A patent/JPS62123705A/ja active Granted
- 1986-09-18 CA CA000518561A patent/CA1288806C/en not_active Expired - Fee Related
- 1986-09-24 IL IL80135A patent/IL80135A0/xx unknown
- 1986-10-03 EP EP86113699A patent/EP0219013A3/en not_active Withdrawn
- 1986-10-07 KR KR1019860008389A patent/KR910002654B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0219013A3 (en) | 1988-01-07 |
JPS62123705A (ja) | 1987-06-05 |
EP0219013A2 (en) | 1987-04-22 |
KR870004302A (ko) | 1987-05-08 |
CA1288806C (en) | 1991-09-10 |
JPH0317367B2 (xx) | 1991-03-07 |
US4680551A (en) | 1987-07-14 |
KR910002654B1 (ko) | 1991-04-27 |
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