Ion Source Team

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

1. Operation and development of the ECR ion sources
2. Development of a superconducting ECR heavy-ion source for high-intensity uranium ions

List of Selected Publications

1. Nakagawa T., and Yano Y.:
   "Developments in ECRIS for RIKEN RI beam factory project"
   Nucl. Instrum. Methods Phys. Res. B241, 935 (2005)
   
2. 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
   
3. 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
   
4. 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
   
5. Y. Higurashi et al.:
   "Production of highly charged U ion beam with RIKEN SC-ECRIS"
   Rev. Sci. Instrum. 83(2012)02A333
   
6. Y. Higurashi et al.:
   "Results of RIKEN SC-ECRIS with 28GHz"
   Rev. Sci. Instrum. 83(2012)02A308
   
7. 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)
   
8. 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
   
9. 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
   
10. 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