Effective resistance of the HTS floating coil of the Mini-RT project

Nagato Yanagi, Toshiyuki Mito, Tsutomu Hemmi, Kazutaka Seo, Junji Morikawa, Yuichi Ogawa, Masataka Iwakuma

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

A magnetically levitated superconducting coil device, Mini-RT, has been constructed using high temperature superconductors for the purpose of examining a new magnetic confinement scheme of high-beta plasmas. The floating coil is wound with Bi-2223/Ag tapes, and it is operated in the temperature range of 20-40 K. The excitation tests of the coil were carried out and persistent current was sustained for magnetic levitation. The decay time constant of the persistent current was measured and the effective resistance of the coil cables was evaluated. The obtained resistance shows a considerable increase than that predicted by the n-value model. This might be caused by some electromagnetic effects such as the loss generation with long-lived shielding currents. This consideration was examined by measuring the magnetization of an HTS sample coil.

本文言語英語
ページ(範囲)1399-1402
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
15
2 PART II
DOI
出版ステータス出版済み - 6 2005

All Science Journal Classification (ASJC) codes

  • 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

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