魔角旋转核磁共振的被动匀场
Passive Shimming for Magic-Angle-Spinning NMR.
作者信息
Noguchi So, Hahn Seungyong, Iwasa Yukikazu
机构信息
Graduate School of Information Science and Technology, Hokkaido University, Sapporo 060-0814, Japan.
Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139 USA.
出版信息
IEEE Trans Appl Supercond. 2014 Jul;24(3). doi: 10.1109/tasc.2013.2284548. Epub 2013 Oct 4.
The superconducting dipole magnets wound with HTS wires have been developed for a magic-angle-spinning NMR. The magnetic field of the dipole magnets is tilted from -axis. Since the highly homogeneous magnetic field is required, the magnetic field of the dipole magnets is necessarily compensated by passive and/or active shimming. However, the compensation of all the components has not been reported. Usually, due to the axial symmetry of a solenoid magnet, only component of the magnetic field is homogenized. In this paper, all the , , and components of the magnetic field generated by the superconducitng dipole magnet are compensated because of the tilt from the -axis.
已开发出用于魔角旋转核磁共振的由高温超导电线缠绕的超导偶极磁体。偶极磁体的磁场相对于z轴倾斜。由于需要高度均匀的磁场，偶极磁体的磁场必须通过被动和/或主动匀场来补偿。然而，尚未有关于所有分量补偿的报道。通常，由于螺线管磁体的轴对称性，仅磁场的z分量被均匀化。在本文中，由于相对于z轴的倾斜，超导偶极磁体产生的磁场的所有x、y和z分量都得到了补偿。
Zotero 插件