@inproceedings{oai:repo.qst.go.jp:00054572,
 author = {Suzuki, Shinji and Iwata, Yoshiyuki and Noda, Koji and Shirai, Toshiyuki and Furukawa, Takuji and Fujita, Takashi and Shouda, Kouichi and Mori, Shinichiro and Mizushima, Kota and Hara, Yousuke and al., et and 鈴木 伸司 and 岩田 佳之 and 野田 耕司 and 白井 敏之 and 古川 卓司 and 藤田 敬 and 正田 光一 and 森 慎一郎 and 水島 康太 and 原 洋介},
 book = {IPAC2014: Proceedings of the 5th International Particle Accelerator Conference},
 issue = {14},
 month = {Aug},
 note = {Manufacture of superconducting rotating-gantry for heavy-ion radiotherapy is currently in progress. This rotating gantry can transport heavy ions having 430
MeV/nucleon to an isocenter with irradiation angles of over 0-360 degrees, and enables advanced radiationtherapy. To reduce the size and weight of the rotating gantry, we designed superconducting magnets that can independently excite dipole and quadrupole field. The three-dimensional scanning-irradiation method is performed in this rotating gantry. Therefore, uniformity of magnetic field is quite important, since scanned beams traverse through these superconducting magnets before reaching to the isocenter. In the present work, we precisely measured the magnetic-field distributions of the superconducting magnets for the rotating gantry. We used Hall probes to measure the magnetic-flux density. The magnetic-field distributions were determined by measuring Hall voltage, while moving the Hall probes on a rail, which has the same curvature as a center trajectory of beams. The measured-field distributions were compared with designed distributions by using a three-dimensional electromagnetic-field solver, the OPERA-3D code. Furthermore, beam-tracking simulations were performed by using the measured magnetic-field distributions to verify the design of the superconducting magnets.},
 pages = {2159--2161},
 publisher = {JACoW},
 title = {MAGNETIC-FIELD MEASUREMENTS OF SUPERCONDUCTING MAGNETS FOR A HEAVY-ION ROTATING-GANTRY AND BEAMTRACKING SIMULATIONS},
 volume = {IPAC},
 year = {2014}
}