Development and operation of superconducting NMR magnet beyond 900 MHz
Development and operation of superconducting NMR magnet beyond 900 MHz
复制标题
900 MHz以上超导核磁共振磁体的开发和运行
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
R. Hirose
中科院分区：
文献类型：
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作者：
T. Kiyoshi;A. Sato;T. Takeuchi;K. Itoh;S. Matsumoto;O. Ozaki;H. Wada;M. Yoshikawa;T. Kamikado;S. Ito;T. Miki;T. Hase;M. Hamada;S. Hayashi;Y. Kawate;R. Hirose
1999年12月，筑波磁铁实验室成功制造并运行了900 MHz级核磁共振磁铁，这是1 GHz核磁共振磁铁项目的一个里程碑。所开发的磁体由15%Sn青铜处理的（Nb，Ti）/sub 3/Sn、Ta增强的（Nb，Ti）/sub 3/Sn和NbTi导体制成。低温恒温器的室温孔直径为54 mm。所有的线圈都用加压的超流氦冷却。磁体在驱动模式下产生21.20 T的场，然后在对应于902 MHz的质子NMR频率的21.17 T下以持久模式操作。在不久的将来，磁场可能会提高到21.6 T（920 MHz）的范围。
As a milestone in the 1-GHz NMR magnet project being carried out at the Tsukuba Magnet Laboratory, a 900-MHz class NMR magnet was successfully manufactured and operated in December 1999. The developed magnet is made of 15%Sn-bronze-processed (Nb,Ti)/sub 3/Sn, Ta-reinforced (Nb,Ti)/sub 3/Sn, and NbTi conductors. The room temperature bore of the cryostat is 54 mm is diameter. All the coils are cooled with pressurized superfluid helium. The magnet generated a field of 21.20 T in a driven mode and then operated in a persistent mode at 21.17 T corresponding to a proton NMR frequency of 902 MHz. The field may be raised to the range of 21.6 T (920 MHz) in the near future.