@misc{oai:repo.qst.go.jp:00069856,
 author = {Muramatsu, Masayuki and 村松 正幸},
 month = {Sep},
 note = {アメリカで開催された第13回イオン源国際会議において、群馬大学用に開発した小型ECRイオン源(KeiGM)と、最近行った小型ECRイオン源(Kei2)の実験についてポスター発表を行った。タイトルは「The compact ECR ion source KeiGM for the carbon ion therapy facility at Gunma University」である。多くの炭素線治療に興味のある研究者と活発な議論を行うことができた。
Abstract: 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., The 13th International Conference on Ion Sources},
 title = {The compact ECR ion source KeiGM for the carbon ion therapy facility at Gunma University},
 year = {2009}
}