Experimental evaluation of the magnetization process in a high Tc bulk superconducting magnet using magnetic resonance imaging

• 玉田, 大輝

• 巨瀬, 勝美

• Tamada, Daiki

• Nakamura, Takashi

• Itoh, Yoshitaka

• Kose, Katsumi

抄録

We measured the magnetic field distribution of a high Tc bulk superconducting magnet (c-axis oriented EuBa2Cu3Oy crystals) during the magnetization process using magnetic resonance imaging. Measurements were performed in the field cooling process from 100 to 50 K in a 4.74 T magnetic field and in the field reducing process from 4.74 to 0 T at 50 K. In field cooling; we observed a significant decrease in the gradient coil efficiencies caused by the Meissner effect. Analysis of the trapped field suggested the presence of temperature gradients; microcracks; and inhomogeneity in the bulk crystals.

収録刊行物

• Physica. C, Superconductivity and its applications

  Physica. C, Superconductivity and its applications 492 174-177, 2013-09

  Elsevier

詳細情報

• CRID: 1050001202632974080
• NII論文ID: 120007136827
• NII書誌ID: AA11461984
• ISSN: 09214534
• HANDLE: 2241/119852
• Web Site: https://tsukuba.repo.nii.ac.jp/records/29411
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles