@article{oai:repo.qst.go.jp:00049329, author = {Suda, Mitsuru and Hagiwara, Takuya and Suya, Noriyoshi and Hamano, Tsuyoshi and Takada, Masashi and Konishi, Teruaki and Maeda, Takeshi and Ohmachi, Yasushi and Kakinuma, Shizuko and Ariyoshi, Kentaro and Shimada, Yoshiya and Imaseki, Hitoshi and 須田 充 and 萩原 拓也 and 酢屋 徳啓 and 濱野 毅 and 高田 真志 and 小西 輝昭 and 前田 武 and 大町 康 and 柿沼 志津子 and 有吉 健太郎 and 島田 義也 and 今関 等}, issue = {12}, journal = {Radiation Physics and Chemistry}, month = {May}, note = {We developed a neutron irradiation facility, Neutron exposure Accelerator System for Biological Effect Experiments (NASBEE) for biological studies in National Institute of Radiological Sciences, Japan. Irradiation field of 2 MeV average neutrons generated by a Be(d-n)B reaction is established. Dose uniformity of 240 mm in diameter irradiation field is producible within +/-2.5% with a dose rate of 0.87 Gy/hr at sample target distance of 1170 mm. Two irradiation rooms, a Specific Pathogen-Free (SPF) conditioned one and a conventional, are now available. Irradiation protocols for in vitro experiments are now established and demonstrated by obtaining a relative biological effectiveness (RBE) of cell inactivation measured to be 3.54 with 10% survival dose (D10).}, pages = {1216--1219}, title = {Specifications of a Neutron exposure Accelerator System for Biological Effects Experiments (NASBEE) in NIRS}, volume = {78}, year = {2009} }