FI831817A0 - Spolapparatur foer aostadkommande av homogent magnetfaelt - Google Patents
Spolapparatur foer aostadkommande av homogent magnetfaeltInfo
- Publication number
- FI831817A0 FI831817A0 FI831817A FI831817A FI831817A0 FI 831817 A0 FI831817 A0 FI 831817A0 FI 831817 A FI831817 A FI 831817A FI 831817 A FI831817 A FI 831817A FI 831817 A0 FI831817 A0 FI 831817A0
- Authority
- FI
- Finland
- Prior art keywords
- spolapparatur
- magnetfaelt
- homogent
- foer aostadkommande
- aostadkommande
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Electromagnets (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI831817A FI70752C (fi) | 1983-05-20 | 1983-05-20 | Spolsystem foer aostadkommande av homogent magnetfaelt |
US06/609,635 US4644281A (en) | 1983-05-20 | 1984-05-14 | Coil arrangement for producing a homogeneous magnetic field |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI831817 | 1983-05-20 | ||
FI831817A FI70752C (fi) | 1983-05-20 | 1983-05-20 | Spolsystem foer aostadkommande av homogent magnetfaelt |
Publications (4)
Publication Number | Publication Date |
---|---|
FI831817A0 true FI831817A0 (fi) | 1983-05-20 |
FI831817L FI831817L (fi) | 1984-11-21 |
FI70752B FI70752B (fi) | 1986-06-26 |
FI70752C FI70752C (fi) | 1986-10-06 |
Family
ID=8517251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI831817A FI70752C (fi) | 1983-05-20 | 1983-05-20 | Spolsystem foer aostadkommande av homogent magnetfaelt |
Country Status (2)
Country | Link |
---|---|
US (1) | US4644281A (fi) |
FI (1) | FI70752C (fi) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6180808A (ja) * | 1984-09-27 | 1986-04-24 | Yokogawa Hokushin Electric Corp | 静磁場発生用コイル |
JPS62264606A (ja) * | 1986-05-07 | 1987-11-17 | Toshiba Corp | 磁場補正用コイル装置 |
FR2602869B1 (fr) * | 1986-08-14 | 1989-03-31 | Thomson Cgr | Procede d'application des impulsions de gradient dans une experimentation d'imagerie au moyen d'une machine de resonance magnetique nucleaire |
FI80795C (fi) * | 1988-07-01 | 1990-07-10 | Instrumentarium Oy | Foerfarande och anordning foer undersoekning av aemnens egenskaper. |
US4920316A (en) * | 1989-03-30 | 1990-04-24 | Siemens Medical Systems, Inc. | Method and apparatus for reducing base field shifts in a magnetic resonance device due to pulsed magnetic field gradients |
CA2336191C (en) * | 1998-06-17 | 2008-12-16 | Medi-Physics, Inc. | Hyperpolarized gas transport devices and associated transport method |
WO2007076252A1 (en) * | 2005-12-20 | 2007-07-05 | Koninklijke Philips Electronics, N.V. | Magnetic resonance scanner with a longitudinal magnetic field gradient system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI373874A (fi) * | 1974-12-20 | 1976-06-21 | Nils Allan Danielsson | |
DE2840178A1 (de) * | 1978-09-15 | 1980-03-27 | Philips Patentverwaltung | Magnetspulenanordnung zur erzeugung von linearen magnetischen gradientenfeldern |
DE2849355A1 (de) * | 1978-11-14 | 1980-05-29 | Philips Patentverwaltung | Magnetspulenanordnung zur erzeugung eines homogenen magnetfeldes fuer magnetresonanz-anordnungen |
-
1983
- 1983-05-20 FI FI831817A patent/FI70752C/fi not_active IP Right Cessation
-
1984
- 1984-05-14 US US06/609,635 patent/US4644281A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FI70752B (fi) | 1986-06-26 |
FI70752C (fi) | 1986-10-06 |
US4644281A (en) | 1987-02-17 |
FI831817L (fi) | 1984-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: INSTRUMENTARIUM OY |