RIBF Research Division
- Radioactive Isotope Physics Laboratory
- Spin isospin Laboratory
- Nuclear Spectroscopy Laboratory
- High Energy Astrophysics Laboratory
- Nuclear Many-body Theory Laboratory
- Superheavy Element Research Group
- Superheavy Element Production Team
- Superheavy Element Research Device Development Team
- Astro-Glaciology Research Unit
Research Facility Development Division
Accelerator Applications Research Group
Subnuclear System Research Division
- Strangeness Nuclear Physics Laboratory
- Meson Science Laboratory
- RHIC Physics Research Group
- RIKEN Facility Office at RAL
Directly under the Nishina Center
Closed Laboratory
Ion Source Team

Laboratory Head
Takahide NAKAGAWAD.Sci.
- 1980年筑波大学自然学類卒業
- 1985年筑波大学物理学研究科修了
- 1985年日本学術振興会 奨励研究生
- 1986年ハーンマイトナー研究所(西ドイツ)客員研究員
- 1989年理化学研究所 サイクロトロン研究室 研究員
- 1994年理化学研究所 サイクロトロン研究室 先任研究員
- 2008年理化学研究所 仁科加速器研究センター イオン源開発チーム チームリーダー
Staff

Research Areas
Our aim is to operate and develop the ECR ion sources for the accelerator-complex system of the RI Beam Factory. We focus on further upgrading the performance of the RI Beam Factory through the design and fabricatin of a superconducting ECR heavy-ion source for production of high-intensity uranium ions.
Research Subject
- Operation and development of the ECR ion sources
- Development of a superconducting ECR heavy-ion source for high-intensity uranium ions
List of Selected Publications
- Nakagawa T., and Yano Y.:
"Developments in ECRIS for RIKEN RI beam factory project"
Nucl. Instrum. Methods Phys. Res. B241, 935 (2005)
- Higurashi Y., Nakagawa T., Kidera M., Aihara T., Kobayashi K., Kase M., Goto A., and Yano Y.:
"Effect of magnetic field configuration on the beam intensityb from ECRIS and RIKEN SC-ECRIS"
Rev. Sci. Instrum. 77 (2006) 03A329
- Higurashi Y., Nakagawa T., Kidera M., Haba H., Aihara T., Kase M., Goto A., and Yano Y.:
"Production of U beam from RIKEN 18 GHz electron cyclotron resonance ion source"
Rev. Sci. Instrum. 79 (2008) 02C714
- Nakagawa T., Kidera M., Higurashi Y., Ohnishi J., Goto A., and Yano Y.:
"New superconducting electron cyclotron resonance ion source for RIKEN RI beam factory project"
Rev. Sci. Instrum. 79 (2008) 02A327
- Y. Higurashi et al.:
"Production of highly charged U ion beam with RIKEN SC-ECRIS"
Rev. Sci. Instrum. 83(2012)02A333
- Y. Higurashi et al.:
"Results of RIKEN SC-ECRIS with 28GHz"
Rev. Sci. Instrum. 83(2012)02A308
- Ozeki K., Higurashi Y., Ohnish J.,i and Nakagawa T.:
"Effect of Biased Disc on Brightness of Highly Charged Uranium Ions from RIKEN 28 GHz Superconducting Electron Cyclotron Resonance Ion Source"
Jpn. J. Appl. Phys. 52(2013)
- Ohnishi J., Higurashhi Y., Kidera M., Ozeki K., and Nakagawa T.:
"Development of a high-temperature oven for the 28 GHz electron cyclotron resonance ion sourcea"
Rev. Sci. Instrum. 85(2014)02A941
- Ozeki K., Kageyama M., Kidera M., Higurashi Y., and Nakagawa T.:
"Operational test of micro-oven for 48Ca beam"
Rev. Sci. Instrum. 85(2014)02A924
- Higurashi Y., Ohnishi J., Kidera M., and Nakagawa T.:
"Recent development of RIKEN 28 GHz superconducting electron cyclotron resonance ion source"
Rev. Sci. Instrum. 85(2014)02A953