Development of a High-Tc Coil-system possesses high current density and high thermal stability

2016 Fiscal Year Final Research Report

• Project/Area Number: 26820101
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Waseda University
• Principal Investigator: Wang Tao 早稲田大学, 理工学術院総合研究所(理工学研究所), その他(招聘研究員) (60707818)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 高温超伝導 / 超伝導マグネット / 高磁場化 / 回路解析 / 熱伝導解析 / 電磁場解析 / マグネット技術

Outline of Final Research Achievements

Recent achievements in high-temperature superconducting (HTS) coil technologies have enabled high performance and compactness in next-generation high-field magnetic resonance imaging (MRI) and particle cyclotron systems that require magnetic fields above 7 T and 6 T, respectively. However, the realization of high-current density, high thermal stability and high operation reliability particularly under a high magnetic field environment, is very crucial to accomplish the miniaturization of the HTS coil. In this study, an analysis coupling with a current analysis based on Partial Element Equivalent Circuit (PEEC) and a thermal analysis based on FEM was created for proving and evaluating the validity of the recently proposed “No-insulation HTS winding Technology”. Meanwhile, the research goal, which was set to simultaneously achieve 500A/mm2 of current density, tens of second of charging speed, and the characteristic of “defect Irrelevant” in a HTS magnet applied in 3 T grade MRI.

Free Research Field

超伝導応用工学