Beam Dynamics & Diagnostics Team

In order to operate RIBF accelerator complex with the world-highest-intensity beams more efficiently, upgrades of beam diagnosis, computer control and power supplies are now in progress. Our goal is to establish simulation-based operation of RIBF accelerator complex.

Research Subjects

• Stable and efficient operations of RIBF accelerator complex.
• Beam diagnostics.
• Accelerator control system.
• Stabilization of all the power supplies used in RIBF.
• High-performance operation of RILAC2.

Publications

1. N. Fukunishi, T. Dantsuka, M. Fujimaki, A. Goto, H. Hasebe, Y. Higurashi, E. Ikezawa, T. Kageyama, O. Kamigaito, M. Kase, M. Kidera, M. Kobayashi-Komiyama, K. Kumagai, H. Kuboki,T. Maie, M. Nagase, T. Nakagawa, J. Ohnishi, H. Okuno, N. Sakamoto, Y. Sato:
   "Operating Experience with the RIKEN Radioactive Isotope Beam Factory"
   Proceedings of PAC09, MO3GRI01, (2009).
2. T. Watanabe, N. Fukunishi, M. Kase, Y. Sasaki and Y. Yano:
   "Developement of Beam Currrent Monitor with HTS SQUID and HTS Current Sensor"
   11th International Conference on HEAVY ION ACCELERATOR TECHNOLOGY (HIAT09), WE-05, (2009).
3. Yamada K., Arai S., Fujimaki M., Fujinawa T., Fujisawa H., Fukunishi N., Goto A., Higurashi H., Ikezawa E., Kamigaito O., Kase M., Komiyama M., Kumagai K., Maie T., Nakagawa T., Ohnishi J., Okuno H., Sakamoto N., Sato Y., Suda K., Watanabe H., Watanabe Y.:
   "Construction of New Injector Linac for RI Beam Factory at RIKEN Nishina Center"
   Proceedings of IPAC'10, Kyoto, Japan, MOPD046, (2010).
4. T. Watanabe, N. Fukunishi, Y. Sasaki, M. Kase, A. Goto and O. Kamigaito:
   "Development of Beam Current Monitor with High-Tc SQUID at RIBF"
   Proceedings of BIW10, Santa Fe, New Mexico, US, WEIANB02, (2010).
5. N. Fukunishi:
   "RIBF and Other Radioactive Isotope Beam Facilities"
   Proceedings of LINAC10, Tsukuba, Japan, TU104, (2010).
6. T. Watanabe, N. Fukunishi, Y. Sasaki, M. Kase and O. Kamigaito:
   "Improvement of Beam Current Monitor with High Tc Current Sensor and SQUID at the RIBF"
   Proceedings of IPAC'11, San Sebastian, Spain, PP.1260-1262, (2011).
7. M. Kobayashi-Komiyama, N. Fukunishi and A. Uchiyama:
   "Construction of New Data Archive System in RIKEN RI Beam Factory"
   Proceedings of ICALEPCS2011, Grenoble, France, MOPKN005 (2011).
8. T. Maeyama, N. Fukunishi, K. L. Ishikawa, K. Fukasaku, T. Furuta, S. Takagi, S. Noda R. Himeno and S. Fukuda:
   "Response of Aqueous Dichromate and Nanoclay Dichromate Gel Dosimeters to Carbon ion Irradiation"
   7th International Conference on 3D Radiation Dosimetry 2012, Sydney, Australlia, (2012).
9. T. Watanabe, N. Fukunishi, M. Kase, O. Kamigaito, S. Inamori and K. Kon:
   "Beam Current Monitor with a High-Tc Current Sensor and SQUID at the RIBF"
   Journal of Superconductivity and Novel Magnetism, DOI 10.1007/s10948-012-1943-0, (2012).
10. K. Kumagai, N. Fukunishi, M. Fujimaki, T. Maie:
    "Upgrade of RIKEN fixed-frequency Ring Cyclotron"
    Proceedings of PASJ9, Osaka, Japan, WEPS055 (2012).