@article{oai:repo.qst.go.jp:00045030,
 author = {Inaniwa, Taku and Furukawa, Takuji and Matsufuji, Naruhiro and Kohno, Toshiyuki and Satou, Shinji and Noda, Kouji and Kanai, Tatsuaki and 稲庭 拓 and 古川 卓司 and 松藤 成弘 and 河野 俊之 and 佐藤 眞二 and 野田 耕司 and 金井 達明},
 issue = {24},
 journal = {Physics in Medicine and Biology},
 month = {Nov},
 note = {The aim of this work is to define a simplified semi-analytical beam transportation code that can calculate the spatial distribution of projectile fragments which are widely distributed in a patient's body during heavy-ion beam radiotherapy. In this code, we employed an elemental pencil beam model where the spatial distribution of radiation quality for an elemental beam is calculated and superposed according to the emittance ellipse of the narrow heavy-ion beam determined at the entrance of the target. The radiation quality for an elemental beam was calculated using Goldhaber's model of fragment distribution. The calculation results were compared with the experimental observations for a mono-energetic narrow 12C beam measured
at the secondary beam line in HIMAC. Despite its simplicity, the developed code could reproduce the experimental results well.},
 pages = {7261--7279},
 title = {Clinical ion beams: semi-analytical calculation of their quality},
 volume = {52},
 year = {2007}
}