@article{oai:tsukuba.repo.nii.ac.jp:00029411,
 author = {玉田, 大輝 and 巨瀬, 勝美 and Tamada, Daiki and Nakamura, Takashi and Itoh, Yoshitaka and Kose, Katsumi},
 journal = {Physica. C, Superconductivity and its applications},
 month = {Sep},
 note = {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.},
 pages = {174--177},
 title = {Experimental evaluation of the magnetization process in a high Tc bulk superconducting magnet using magnetic resonance imaging},
 volume = {492},
 year = {2013}
}