Detection Method for a Local Normal-State Transition in a No-Insulation REBCO Pancake Coil

Tao Wang, Kazuki Katsumata, Atsushi Ishiyama*, So Noguchi

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

In this paper, we have proposed a detection method for detecting and locating a local normal-state transition in a meter-class no-insulation (NI) coil that is deployed in next-generation high-field magnetic resonance imaging scanners (MRIs), using a copper pickup coil. There are two schemes for detecting and locating the normal zone: one is a ring pickup coil assembled on the midplane of a central bore and the other consists of several sector pickup coils deployed on the coil winding, namely 'scanning pickup coil.' To verify the effectiveness of these detection methods, we performed a numerical simulation coupling consisting of a partial element equivalent circuit, a thermal analysis, and a magnetic field analysis. Based on the results of analyses, we reproduced the distributions of the temporal variations of the magnetic flux in the central bore and on the coil winding of the meter-class NI coil, and discussed the effectiveness of these pickup coil schemes for detecting and locating a local normal-state transition in a meter-class NI coil used in next-generation high-field MRIs.

本文言語English
論文番号7762771
ジャーナルIEEE Transactions on Applied Superconductivity
27
4
DOI
出版ステータスPublished - 2017 6

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

フィンガープリント

「Detection Method for a Local Normal-State Transition in a No-Insulation REBCO Pancake Coil」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル