@article{oai:repo.qst.go.jp:00045824,
 author = {Muramatsu, Masayuki and Kitagawa, Atsushi and Drentje, Arne and Hojo, Satoru and Ueda, Takamasa and Miyazaki, Hirohumi and Yusa, Ken and Tashiro, Mutsumi and Torikai, Kota and Sakama, Makoto and Kanai, Tatsuaki and Yamada, Satoru and 村松 正幸 and 北川 敦志 and Ａｒｎｅ Ｄｒｅｎｔｊｅ and 北條 悟 and 上田 隆正 and 遊佐 顕 and 田代 睦 and 鳥飼 幸太 and 坂間 誠 and 金井 達明 and 山田 聰},
 issue = {2},
 journal = {Review of Scientific Instruments},
 month = {Feb},
 note = {A high-energy carbon-ion radiotherapy facility is under construction at Gunma University Heavy Ion Medical Centre (GHMC).  Its design was based on a study of the heavy ion radiotherapy at the National Institute of Radiological Sciences (NIRS) in order to reduce the size and construction cost of the facility.  A compact electron cyclotron resonance ion source (ECRIS) for Gunma University, called KeiGM, was installed in 2008.  It is almost a copy of the prototype ECRIS Kei2 which was developed by NIRS; this prototype meanwhile produced over 1 emA of C4+ using C2H2 gas (660 W and 40 kV).  The beam intensity of C4+ was 600 eA with CH4 gas (250 W and 30 kV).  The beam intensity satisfies the required value of 300 eA.},
 pages = {02A327-1--02A327-3},
 title = {The compact electron cyclotron resonance ion source KeiGM for the carbon ion therapy facility at Gunma University},
 volume = {81},
 year = {2010}
}