| 核磁共振成像仪磁体装置的温度相关性研究 |
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| 引用本文： | 史泰华.核磁共振成像仪磁体装置的温度相关性研究[J].仪器仪表学报,2002,23(5):547-550. |
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| 作者姓名： | 史泰华 |
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| 作者单位： | 上海大学理学院物理系,上海,200436 |
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| 摘 要： | 核磁共振成像仪中的磁体装置可采用性能优异的钕铁硼永磁，但该材料的温度系数相对比较大，通过计算机模拟计算，研究了温度变化对磁声强度的影响，并指出，它对磁场的均匀度影响比较小。
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| 关 键 词： | 核磁共振成像仪 磁体装置 温度相关性 磁场均匀性 永磁体 |
| 修稿时间： | 2000年11月1日 |
Research of the Temperature Interrelation for Permanent Magnetic Device of NMR-CT |
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| Shi Taihua.Research of the Temperature Interrelation for Permanent Magnetic Device of NMR-CT[J].Chinese Journal of Scientific Instrument,2002,23(5):547-550. |
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| Authors: | Shi Taihua |
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| Abstract: | The high performance NdFeB material is applied to the magnetic device of the magnetic resonance imaging instructor (NMR-CT). It affects the field stability because of its large temperature coefficient. The author researched the influence for the field strength and homogeneity of the NMR-CT under the temperature variation by computer aided. It concluded that the influence of the temperature variation is very small for the field homogeneity. |
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| Keywords: | Nuclear magnetic resonance imaging Field homogeneity Permanent magnetic |
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