@inproceedings{oai:repo.qst.go.jp:00054843,
 author = {Mizushima, Kota and Takeshita, Eri and Furukawa, Takuji and Shirai, Toshiyuki and Katagiri, Ken and Hara, Yousuke and Noda, Koji and 水島 康太 and 竹下 英里 and 古川 卓司 and 白井 敏之 and 片桐 健 and 原 洋介 and 野田 耕司},
 book = {Proceedings of IBIC2012},
 month = {Oct},
 note = {A two-dimensional beam imaging system with a terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) phosphor screen and high-speed charge coupled device (CCD) camera has been used to measure the beam spot for scanned carbon-ion therapy. The system can take the image of the beam spot with the frequency of 50 Hz. Using this system, the time stability of the unscannedbeam spot size and position was verified in the isocenter. This system was also used to check a beam alignment by observing a shadow, which appears on the beam spot image, of the steel sphere located on the reference axis.},
 pages = {256--258},
 title = {BEAM SPOT MEASUREMENT USING A PHOSPHOR SCREEN FOR CARBON-ION THERAPY AT NIRS},
 year = {2012}
}