JPS6464637A - Nuclear magnetic resonance imaging apparatus - Google Patents
Nuclear magnetic resonance imaging apparatusInfo
- Publication number
- JPS6464637A JPS6464637A JP62221918A JP22191887A JPS6464637A JP S6464637 A JPS6464637 A JP S6464637A JP 62221918 A JP62221918 A JP 62221918A JP 22191887 A JP22191887 A JP 22191887A JP S6464637 A JPS6464637 A JP S6464637A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnetic pole
- pole piece
- magnetic field
- magnetic
- 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.)
- Pending
Links
Abstract
PURPOSE:To reduce a coil control time and to reduce power consumption by the effect of an iron core, by winding a coil around an opposed magnetic pole piece to form a coil with an iron core and forming the opposed surface of the magnetic pole piece so that the central part thereof becomes a protruding part or recessed cavity. CONSTITUTION:Magnetic pole pieces 2, each of which constituted so that a non- magnetic coil support jig 8 having a coil 6 wound in a solenoid shape so as to form a magnetic field provided to the inside thereof and the copper pipe 7 for cooling the heat of the coil 6 provided to the outer periphery thereof is fixed to the outer periphery thereof, are opposed so as to provide a gap 1. In order to set the uniformity of the magnetic field of an imaging space to several 10ppm or less, a protruding part 13 is provided to the central part of each of the magnetic pole pieces 2 and a protruding part 14 is provided to the magnetic pole piece 2 toward the peripheral edge part thereof and a current is allowed to flow to the coil 6 to achieve the uniformity of the magnetic field at the time of the generation of the magnetic field by this effect. As mentioned above, since the uniformity is almost determined by the shape of each magnetic pole piece 2 and the complicated control in a normally conductive coil is unnecessary and the reduction of running cost due to an iron core is expected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62221918A JPS6464637A (en) | 1987-09-07 | 1987-09-07 | Nuclear magnetic resonance imaging apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62221918A JPS6464637A (en) | 1987-09-07 | 1987-09-07 | Nuclear magnetic resonance imaging apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6464637A true JPS6464637A (en) | 1989-03-10 |
Family
ID=16774198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62221918A Pending JPS6464637A (en) | 1987-09-07 | 1987-09-07 | Nuclear magnetic resonance imaging apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6464637A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223874A (en) * | 1990-11-09 | 1993-06-29 | Asahi Kogaku Kogyo Kabushiki Kaisha | Pentagonal mirror unit of single lens reflex camera |
US5530421A (en) * | 1994-04-26 | 1996-06-25 | Navistar International Transportation Corp. | Circuit for automated control of on-board closed circuit television system having side and rear view cameras |
GB2414128A (en) * | 2004-05-13 | 2005-11-16 | Shih-Hsiung Li | Vehicular monitoring system with a multi-window display |
CN107110931A (en) * | 2014-09-05 | 2017-08-29 | 海珀菲纳研究股份有限公司 | Ferromagnetic enhancing for magnetic resonance imaging |
US11366188B2 (en) | 2016-11-22 | 2022-06-21 | Hyperfine Operations, Inc. | Portable magnetic resonance imaging methods and apparatus |
US11841408B2 (en) | 2016-11-22 | 2023-12-12 | Hyperfine Operations, Inc. | Electromagnetic shielding for magnetic resonance imaging methods and apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6171606A (en) * | 1984-09-14 | 1986-04-12 | Fuji Electric Co Ltd | Uniform magnetic field magnet |
JPS61276309A (en) * | 1985-05-31 | 1986-12-06 | Sumitomo Special Metals Co Ltd | Magnetic field generating device |
JPS6213007A (en) * | 1985-07-10 | 1987-01-21 | Fuji Electric Co Ltd | Uniform magnetic field magnet |
-
1987
- 1987-09-07 JP JP62221918A patent/JPS6464637A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6171606A (en) * | 1984-09-14 | 1986-04-12 | Fuji Electric Co Ltd | Uniform magnetic field magnet |
JPS61276309A (en) * | 1985-05-31 | 1986-12-06 | Sumitomo Special Metals Co Ltd | Magnetic field generating device |
JPS6213007A (en) * | 1985-07-10 | 1987-01-21 | Fuji Electric Co Ltd | Uniform magnetic field magnet |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223874A (en) * | 1990-11-09 | 1993-06-29 | Asahi Kogaku Kogyo Kabushiki Kaisha | Pentagonal mirror unit of single lens reflex camera |
US5530421A (en) * | 1994-04-26 | 1996-06-25 | Navistar International Transportation Corp. | Circuit for automated control of on-board closed circuit television system having side and rear view cameras |
GB2414128A (en) * | 2004-05-13 | 2005-11-16 | Shih-Hsiung Li | Vehicular monitoring system with a multi-window display |
GB2414128B (en) * | 2004-05-13 | 2006-04-26 | Shih-Hsiung Li | Vehicular monitoring system with a multi-window display |
CN107110931A (en) * | 2014-09-05 | 2017-08-29 | 海珀菲纳研究股份有限公司 | Ferromagnetic enhancing for magnetic resonance imaging |
JP2017527425A (en) * | 2014-09-05 | 2017-09-21 | ハイパーファイン リサーチ,インコーポレイテッド | Ferromagnetic enhancement for magnetic resonance imaging |
JP2020127750A (en) * | 2014-09-05 | 2020-08-27 | ハイパーファイン リサーチ,インコーポレイテッド | Ferromagnetic augmentation for magnetic resonance imaging |
US11397233B2 (en) | 2014-09-05 | 2022-07-26 | Hyperfine Operations, Inc. | Ferromagnetic augmentation for magnetic resonance imaging |
US11366188B2 (en) | 2016-11-22 | 2022-06-21 | Hyperfine Operations, Inc. | Portable magnetic resonance imaging methods and apparatus |
US11841408B2 (en) | 2016-11-22 | 2023-12-12 | Hyperfine Operations, Inc. | Electromagnetic shielding for magnetic resonance imaging methods and apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6470031A (en) | Magnetic resonance apparatus including improved coil system for inclined magnetic field | |
JPS6464637A (en) | Nuclear magnetic resonance imaging apparatus | |
JPS6423730A (en) | Recharger for electronic clock | |
JPS55163813A (en) | Magnetic circuit | |
JPS5688636A (en) | Ring wound armature for synchronous machine | |
SU1644301A1 (en) | Direct current machine | |
SU772680A1 (en) | Pattern set | |
JPS6423736A (en) | Stator of electrical rotating machine | |
JPS5333596A (en) | Superconductive magnet device | |
JPS57196513A (en) | Choke coil of switching regulator or the like | |
JPS6481304A (en) | Method of making permanent current flow through superconducting coil and superconducting magnet device | |
JPS5695545A (en) | Electrospark machining device | |
JPS5713898A (en) | Magnetic circuit of speaker | |
JPS6427199A (en) | Deflection magnet and exciter thereof | |
JPS6467900A (en) | Synchrotron device | |
SU750665A1 (en) | Combined excitation synchronous machine inductor | |
JPS55138807A (en) | Cooler for shifting magnetic field generator | |
JPH041486B2 (en) | ||
JPS5463310A (en) | Dc motor | |
JPS5646399A (en) | Moving magnet type speaker | |
JPS6427191A (en) | Roll device | |
JPS6428906A (en) | Superconducting magnet | |
JPS5544727A (en) | Superconductive magnet | |
JPS5734763A (en) | Electromagnetic drive device | |
JPS6433841A (en) | Pulse magnet |