@article{oai:repo.qst.go.jp:00084835,
 author = {Mizukami, Shinya and Watanabe, Yusuke and Mizoguchi, Takahiro and Gomi, Tsutomu and Hara, Hidetake and Takei, Hideyuki and Fukunishi, Nobuhisa and L Ishikawa, Kenichi and Shigekazu, Fukuda and Shigekazu, Fukuda},
 issue = {4},
 journal = {Gels},
 month = {Nov},
 note = {MRI-based gel dosimeters are attractive systems for the evaluation of complex dose distributions in radiotherapy. In particular, the nanocomposite Fricke gel dosimeter is one among a few dosimeters capable of accurately evaluating the dose distribution of heavy ion beams. In contrast, reduction of the scanning time is a challenging issue for the acquisition of three-dimensional volume data. In this study, we investigated a three-dimensional dose distribution measurement
method for heavy ion beams using variable flip angle (VFA), which is expected to significantly reduce the MRI scanning time. Our findings clarified that the whole three-dimensional dose distribution could be evaluated within the conventional imaging time (20 min) and quality of one crosssection.},
 title = {Whole Three-Dimensional Dosimetry of Carbon Ion Beams with an MRI-Based Nanocomposite Fricke Gel Dosimeter Using Rapid T1 Mapping Method},
 volume = {7},
 year = {2021}
}