@article{oai:repo.qst.go.jp:00045672,
 author = {Hirayama, Ryoichi and Matsumoto, Yoshitaka and Kase, Yuuki and Noguchi, Miho and Ando, Koichi and Ito, Atsushi and Okayasu, Ryuichi and Furusawa, Yoshiya and Hirayama, Ryoichi and Matsumoto, Yoshitaka and Kase, Yuuki and Ando, Koichi and Ito, Atsushi and Okayasu, Ryuichi and Furusawa, Yoshiya},
 issue = {12},
 journal = {Radiation Physics and Chemistry},
 month = {Dec},
 note = {The contribution of OH radical mediated indirect action by particle beams under hypoxic irradiation condition was investigated by using a radical scavenger.  V79 cells were irradiated with 150 MeV/nucleon helium ions at an LET of 2.2 keV/µm in the presence or absence of DMSO, and their colony survivals were determined.  The contribution of indirect action to cell killing under hypoxic condition was estimated to be 52 +/- 9%.  We conclude that OH radical mediated indirect action still has a half in total contribution on cell killing under hypoxic condition.},
 pages = {1175--1178},
 title = {Radioprotection by DMSO in Nitrogen-Saturated Mammalian Cells Exposed to Helium Ion Beams},
 volume = {78},
 year = {2009}
}