@article{oai:repo.qst.go.jp:00043489,
 author = {Komori, Masataka and Furukawa, Takuji and Kanai, Tatsuaki and Noda, Kouji and 小森 雅孝 and 古川 卓司 and 金井 達明 and 野田 耕司},
 issue = {9A},
 journal = {Japanese Journal of Applied Physics},
 month = {},
 note = {We propose an amplitude modulation wobbler-scatterer system, a so-called spiral-wobbler system, to produce a large irradiation field in a relatively short irradiation port for heavy-ion radiation therapy. The wobbler parameters, such as the wobbler-radius-modulation function, the wobbler radial frequency and the rotational frequency, are optimized and the uniformity of the irradiation field is estimated as the function of irradiation time. By using a wobbler radial frequency of 23 Hz, and a wobbler rotational frequency of 59 Hz, an irradiation field with a uniformity of +-3% can be obtained for an irradiation duration of 1 s. The spiral-wobbler system is applicable to respiration-gated irradiation.},
 pages = {6463--6467},
 title = {Optimization of Spiral-Wobbler System for Heavy-Ion Radiotherapy},
 volume = {43},
 year = {2004}
}