JPH0215834B2 - - Google Patents
Info
- Publication number
- JPH0215834B2 JPH0215834B2 JP58158563A JP15856383A JPH0215834B2 JP H0215834 B2 JPH0215834 B2 JP H0215834B2 JP 58158563 A JP58158563 A JP 58158563A JP 15856383 A JP15856383 A JP 15856383A JP H0215834 B2 JPH0215834 B2 JP H0215834B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic field
- magnet
- circuit
- magnet pieces
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 10
- 230000035699 permeability Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 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
- G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58158563A JPS6050442A (ja) | 1983-08-30 | 1983-08-30 | 核磁気共鳴イメ−ジング装置の磁界発生装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58158563A JPS6050442A (ja) | 1983-08-30 | 1983-08-30 | 核磁気共鳴イメ−ジング装置の磁界発生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6050442A JPS6050442A (ja) | 1985-03-20 |
| JPH0215834B2 true JPH0215834B2 (fr) | 1990-04-13 |
Family
ID=15674430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58158563A Granted JPS6050442A (ja) | 1983-08-30 | 1983-08-30 | 核磁気共鳴イメ−ジング装置の磁界発生装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050442A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61264242A (ja) * | 1985-05-17 | 1986-11-22 | Shimadzu Corp | Ｍｒｉ用電磁石の磁場分布微調節装置 |
| FR2598809B1 (fr) * | 1986-05-13 | 1988-07-22 | Thomson Cgr | Bloc correcteur d'homogeneite de champ magnetique et aimant muni de tels blocs |
| FR2609206B1 (fr) * | 1986-12-30 | 1992-02-14 | Thomson Cgr | Dispositif correcteur par elements magnetiques d'inhomogeneites du champ magnetique dans un aimant |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150499A (fr) * | 1974-10-28 | 1976-05-04 | Hitachi Ltd |
-
1983
- 1983-08-30 JP JP58158563A patent/JPS6050442A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150499A (fr) * | 1974-10-28 | 1976-05-04 | Hitachi Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6050442A (ja) | 1985-03-20 |
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