Iwasa Yukikazu, Bascuñán Juan, Hahn Seungyong, Voccio John, Kim Youngjae, Lécrevisse Thibault, Song Jungbin, Kajikawa K
Francis Bitter Magnet Laboratory (FBML) of the Plasma Science and Fusion Center (PSFC), Massachusetts Institute of Technology (MIT), Cambridge, MA 02139 USA.
Francis Bitter Magnet Laboratory (FBML) of the Plasma Science and Fusion Center (PSFC), Massachusetts Institute of Technology (MIT), Cambridge, MA 02139 USA He is now with Kyushu University, Fukuoka 812-8581, Japan.
IEEE Trans Appl Supercond. 2015 Jun;25(3). doi: 10.1109/tasc.2014.2363496. Epub 2014 Oct 16.
A high-resolution 1.3-GHz/54-mm low-temperature superconducting/high-temperature superconducting (HTS) nuclear magnetic resonance magnet (1.3 G) is currently in the final stage at the Massachusetts Institute of Technology Francis Bitter Magnet Laboratory. Its key component is a three-coil (Coils 1-3) 800-MHz HTS insert comprising 96 no-insulation (NI) double-pancake coils, each wound with a 6-mm-wide GdBCO tape. In this paper, after describing the overall 1.3-G system, we present innovative design features incorporated in 1.3 G: 1) an NI winding technique applied to Coils 1-3 and its adverse effect in the form of charging time delay; 2) persistent-mode HTS shims; 3) a "shaking" magnet; and 4) preliminary results of Coil 1 operated at 4.2 K.
一台高分辨率的1.3吉赫兹/54毫米低温超导/高温超导（HTS）核磁共振磁体（1.3 G）目前正在麻省理工学院弗朗西斯·比特磁体实验室进入最后阶段。其关键部件是一个三线圈（线圈1 - 3）800兆赫兹高温超导插入件，由96个无绝缘（NI）双饼式线圈组成，每个线圈用6毫米宽的钆钡铜氧（GdBCO）带材缠绕。在本文中，在描述了整个1.3 G系统之后，我们展示了融入1.3 G中的创新设计特点：1）应用于线圈1 - 3的无绝缘绕组技术及其以充电时间延迟形式出现的不利影响；2）持续模式高温超导垫片；3）一个“振动”磁体；4）在4.2 K下运行的线圈1的初步结果。
