| 发明名称 |
LOW MAGNETIC FIELD, ULTRA-LOW MAGNETIC FIELD NUCLEAR MAGNETIC RESONANCE AND MAGNETIC RESONANCE IMAGE APPARATUS |
| 摘要 |
Provided is a low magnetic field and ultra-low magnetic field NMR and MRI apparatus. The low magnetic field and ultra-low magnetic field NMR and MRI apparatus includes a SQUID sensor and a prepolarization magnetic field coil. The prepolarization magnetic field coil generates a prepolarization magnetic field to polarize a sample. The prepolarization magnetic coil generates a counter pulse in a direction opposite to that of the prepolarization magnetic field immediately before or immediately after the prepolarization magnetic field is generated. The counter pulse demagnetizes wanted magnetization including that of the prepolarization magnetic field coil itself. |
| 申请公布号 |
US2016209482(A1) |
申请公布日期 |
2016.07.21 |
| 申请号 |
US201514618535 |
申请日期 |
2015.02.10 |
| 申请人 |
Korea Research Institute of Standards and Science |
发明人 |
Hwang Seong-min;Kim Kiwoong;Yu Kwon-Kyu;Lee Seong-Joo;Shim Jeong-Hyun |
| 分类号 |
G01R33/44;G01R33/3815;G01R33/32 |
主分类号 |
G01R33/44 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A low magnetic field and ultra-low magnetic field NMR and MRI apparatus including a SQUID sensor and a prepolarization magnetic field coil,
wherein the prepolarization magnetic field coil is adapted to generate a prepolarization magnetic field to magnetize a sample, wherein the prepolarization magnetic coil is adapted to generate a counter pulse in a direction opposite to that of the prepolarization magnetic field immediately before or immediately after the prepolarization magnetic field is generated, and wherein unwanted magnetization due to the prepolarization magnetic field can be demagnetized by the counter pulse. |
| 地址 |
Daejeon KR |
