TY - JOUR
T1 - Trapped field evaluation of ring-shaped GdBCO bulk magnet excited by pulsed field magnetization
AU - Yokoyama, K.
AU - Oka, T.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2021/4/19
Y1 - 2021/4/19
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/1857/1/012018
DO - 10.1088/1742-6596/1857/1/012018
M3 - Conference article
AN - SCOPUS:85104894381
SN - 1742-6588
VL - 1857
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012018
T2 - 10th Asian Conference on Applied Superconductivity and Cryogenics, ACASC 2020, 2nd International Cryogenic Materials Conference in Asia, Asian-ICMC 2020 and CSSJ Joint Conference
Y2 - 6 January 2020 through 9 January 2020
ER -