@article{oai:repo.qst.go.jp:00055703,
 author = {小西, 輝昭 and 磯野, 真由 and 児玉, 久美子 and 北村, 尚 and 小平, 聡 and 南條, 大輔 and 森, 豊 and 坂本, 淳志 and 檜枝, 光太郎 and 小西 輝昭 and 児玉 久美子 and 北村 尚 and 小平 聡 and 南條 大輔 and 檜枝 光太郎},
 issue = {HIMAC-134},
 journal = {放射線医学総合研究所重粒子線がん治療装置等共同利用研究報告書},
 month = {Jun},
 note = {CHO-K1 cells were irradiated with protons and C, N, and O ions near the Bragg peak at the Medium Energy Beam (MEXP) Course. C, N, O ions were transported to MEXP course at 6 MeV/n and led into air, and then irradiated to the cells. Ion energy (or the LETs) was selected by changing the distance between the beam exit and the sample position. For protons, the ion energy was decreased to 4.3 MeV from 6MeV by controlling linac accelerators. For measurement of cell inactivation, 4.3MeV protons were decreased its energy by air as an absorber to 3.4, 2.6, and 2.0 and cell inactivation cross-section was higher with low energy protons. For N ion, the cross-section were obtained at two different positions of Bragg curves, which showed lower cross-section at higher LET. These may be due to drastic thin down of ion track radius at near the Bragg peak.},
 pages = {115--116},
 title = {Ｂｒａｇｇピーク近傍の重粒子イオン照射による細胞致死及びＤＮＡ二本鎖切断誘発率の測定},
 volume = {NIRS-M-214},
 year = {2010}
}