For The General Public

RIBF Research Division

Research Facility Development Division

Accelerator Applications Research Group

Subnuclear System Research Division

Directly under the Nishina Center

Accelerator Group

Leadar's Picture
Group Director
  • 1986年京都大学理学部卒業
  • 1991年京都大学理学研究科物理学第二専攻単位取得退学
  • 1991年大阪大学核物理研究センター教務補佐員
  • 1992年京都大学博士(理学)
  • 1992年理化学研究所 サイクロトロン研究室 研究員
  • 1999年理化学研究所 加速器基盤研究部 先任研究員
  • 2007年理化学研究所 仁科加速器研究センター 専任研究員
  • 2008年現職


Staff photo

Research Areas

"Deputy Director"
Intensity Upgrade:Hiroki OKUNO
Stable and Efficient Operation:Nobuhisa FUKUNISHI

The accelerator group pursues various upgrade programs of the next-generation heavy-ion accelerator facility, RI-Beam Factory (RIBF), to improve the accelerator performance and operation efficiency. We are also actively promoting the applications of the accelerator facility to a variety of research fields.

Research Subject

  1. Upgrade of beam intensity in RIBF accelerators
  2. Stable and efficient operation of RIBFaccelerators
  3. Effective maintenace of RIBF accelerators
  4. R&D of advanced accelerators

List of Selected Publications

  1. O. Kamigaito, T. Dantsuka, M. Fujimaki, N. Fukunishi, H. Hasebe, Y. Higurashi, E. Ikezawa, H. Imao, M. Kidera, M. Komiyama, K. Kumagai, T. Maie, Y. Miyake, T. Nagatomo, T. Nakagawa, M. Nakamura, T. Nishi, J. Ohnishi, H. Okuno, K. Ozeki, N. Sakamoto, K. Suda, A. Uchiyama, T. Watanabe, Y. Watanabe, K. Yamada:
    "Recent progress in RIKEN RI Beam Factory"
    Proceedings of the 22nd International Conference on Cyclotrons and their Applications (CYC2019), Cape Town, South Africa, MOB01 (2019).
  2. O. Kamigaito, K. Ozeki, N. Sakamoto, K. Suda, K. Yamada:
    "Measurement of Mechanical Vibration of SRILAC Cavities"
    Proceedings of the 19th International Conference on RF Superconductivity (SRF2019), Dresden, Germany, TUP042, pp. 515 (2019).
  3. T. Karino:
    "Evaluation method of beam instability in laser ion source using solenoid"
    Review of Scientific Instruments 91, 033316 (2020).
  4. K. Nakamura, N. Nishiura, M. Okamura, T. Kanesue, S. Ikeda, A. Cannavo:
    "Feasibility study of a compact heavy ion source for investigation of laboratory magnetospheric plasma"
    Review of Scientific Instruments 91, 033503 (2020).
  5. H. Okuno, N. Fukunishi, O. Kamigaito:
    "Progress of RIBF Accelerators"
    Progress of Theoretical and Experimental Physics, 03C002. (2012).
  6. M. Kase, M. Fujimaki, Y. Higurashi, E. Ikezawa, O. Kamigaito, M. Komiyama, T. Nakagawa, K. Ozeki, N. Sakamoto, K. Suda:
    "Heavy-Ion Beam Acceleration at RIKEN for the Super-Heavy Element Search"
    Proceedings of the 3rd International Particle Accelerator Conference (IPAC2012), New Orleans, USA, THPPP040, pp. 3823 (2012).
  7. A. Goto:
    "Review of High Power Cyclotrons for Heavy Ion Beams"
    Proceedings of the 19th International Conference on Cyclotrons and their Applications (CYC2010), Lanzhou, China, MOM2CIO01, pp. 9 (2010).
  8. Y. Yano:
    "The RIKEN RI Beam Factory Project: A status report"
    Nucl. Instrum. Methods B 261, 1009 (2007).
  9. O. Kamigaito:
    "Circuit-model representation of external-Q calculation"
    Phys. Rev. ST Accel. Beams 9, 062003 (2006).

Team List

Laboratory Position Representative
Accelerator Group Group Director Osamu KAMIGAITO
Deputy Director Hiroki OKUNO (Intensity Upgrade)/
Nobuhisa FUKUNISHI (Stable and Efficient Operation)
Accelerator R&D Team Team Leader Hiroki OKUNO
Ion Source Team Team Leader Takahide NAKAGAWA
RILAC Team Team Leader Osamu KAMIGAITO
Cyclotron Team Team Leader Naruhiko SAKAMOTO
Beam Dynamics & Diagnostics Team Team Leader Nobuhisa FUKUNISHI
Cryogenic Technology Team Team Leader Hiroki OKUNO
Infrastructure Management Team Team Leader Masanori KIDERA



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