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Magic-Angle-Spinning NMR Magnet Development: Field Analysis and Prototypes
IEEE Transactions on Applied Superconductivity ( IF 1.7 ) Pub Date : 2013-06-01 , DOI: 10.1109/tasc.2013.2245934
John Voccio 1 , Seungyong Hahn , Dong Keun Park , Jiayin Ling , Youngjae Kim , Juan Bascuñán , Yukikazu Iwasa
Affiliation  

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 a z -axis 0.866-T solenoid and an x-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.

中文翻译:

魔角自旋核磁共振磁体开发:场分析和原型

我们目前正在开展一项计划,以完成 1.5 T/75 毫米 RT 孔魔角旋转核磁共振磁体。魔角旋转磁铁包括 z 轴 0.866-T 螺线管和 x 轴 1.225-T 偶极子,每个都用 NbTi 线缠绕,并在持续模式下以 4.2 K 运行。这些场的组合创建了一个 1.5-T 场,指向与旋转 (z) 轴成 54.74 度(魔角)。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分析和设计。此外,使用我们自己设计和制造的绕线机,我们用 NbTi 线绕了几个原型偶极线圈。作为这项开发的一部分,我们多次成功地使用这种多丝 NbTi 焊丝制作了持久的 NbTi-NbTi 接头。
更新日期:2013-06-01
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