@misc{oai:repo.qst.go.jp:00067453,
 author = {Kanematsu, Nobuyuki and Kanai, Tatsuaki and Minohara, Shinichi and Endo, Masahiro and Asaskura, Hiroshi and 兼松 伸幸 and 金井 達明 and 蓑原 伸一 and 遠藤 真広},
 month = {Aug},
 note = {Even though range calculation in treatment planning is crucial for charged particle therapy, the available methods to obtain relationship between effective density and CT number had been either inaccurate or too complicated. We therefore developed a simple and accurate method, the polybinary calibration, for the standardization purpose.
The standardization of CT calibration method has been made. Though the method might not be the final, any improvement will be handled within the established standardization system for charged particle therapy in Japan., World Congress on Medical Physics and Biomedical Engineering},
 title = {Standardization of CT Calibration Method for Charged Particle Therapy in Japan},
 year = {2003}
}