Magic-Angle-Spinning NMR Magnet Development: Field Analysis and Prototypes.
Magic-Angle-Spinning NMR Magnet Development: Field Analysis and Prototypes.
复制标题
魔角旋转核磁共振磁体开发：现场分析和原型。
DOI：
10.1109/tasc.2013.2245934
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Iwasa,Yukikazu
中科院分区：
文献类型：
--
作者：
Voccio,John;Hahn,Seungyong;Park,DongKeun;Ling,Jiayin;Kim,Youngjae;Bascuñán,Juan;Iwasa,Yukikazu
我们目前正在制定一项计划，以完成1.5T/75 mm RT孔魔角旋转核磁共振磁体的研制。魔角旋转磁体由横轴0.866-T螺线管和环轴1.225-T偶极子组成，每个磁极用NbTi线缠绕，持续工作在4.2K。这些场的组合创建了一个与旋转(Z)轴成54.74度(幻角)的1.5-T场。在这个为期3年的计划的第一年，我们已经完成了两个线圈的磁场分析和设计。此外，利用自行设计和制造的绕线机，我们已经用NbTi丝缠绕了几个偶极线圈的原型。作为这一发展的一部分，我们已经多次使用这种多丝NbTi丝成功地制作了持久NbTi-NbTi接头。
We are currently working on a program to complete a 1.5 T/75 mm RT bore magic-angle-spinning nuclear magnetic resonance magnet. The magic-angle-spinning magnet comprises az-axis 0.866-T solenoid and anx-axis 1.225-T dipole, each to be wound with NbTi wire and operated at 4.2 K in persistent mode. A combination of the fields creates a 1.5-T field pointed at 54.74 degrees (magic angle) from the rotation (z) axis. In the first year of this 3-year program, we have completed magnetic analysis and design of both coils. Also, using a winding machine of our own design and fabrication, we have wound several prototype dipole coils with NbTi wire. As part of this development, we have repeatedly made successful persistent NbTi-NbTi joints with this multifilamentary NbTi wire.