Trapped field evaluation of ring-shaped GdBCO bulk magnet excited by pulsed field magnetization

K. Yokoyama, T. Oka

Research output: Contribution to journalConference articlepeer-review


Recently, physical and mechanical properties of REBCO bulk are improved, and, accordingly, various practical applications are considered. As one of them, a portable bulk NMR system has been developed, and, then, the improvement of the system for practical use are progressing. In that system, 6 stacked bulks were magnetized by a superconducting magnet for NMR, resulting that the magnetic field of 4.74 T and inhomogeneity of 6.9 ppm were achieved. In this paper, we fabricated the bulk magnet with the room-temperature bore specialized in pulsed-field magnetization. The ring-shaped bulk was activated by pulsed-field magnetization, and, magnetic fields on the bulk surface and in the room-temperature bore of bulk magnet were evaluated. In the bore, the trapped field was approximately 0.79 T and homogeneity was over 150000 ppm.

Original languageEnglish
Article number012018
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2021 Apr 19
Event10th Asian Conference on Applied Superconductivity and Cryogenics, ACASC 2020, 2nd International Cryogenic Materials Conference in Asia, Asian-ICMC 2020 and CSSJ Joint Conference - Okinawa, Japan
Duration: 2020 Jan 62020 Jan 9

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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