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RIKEN Nishina Center for Accelerator-Based ScienceAccelerator Group

Director: Osamu Kamigaito (D.Sc.)

Research Summary

Osamu  Kamigaito(D.Sc.)

The accelerator group is pursuing various upgrade programs of the world-leading heavy-ion accelerator facility, RI-Beam Factory (RIBF), to enhance the accelerator performance and operation efficiency. We are also promoting developments of the RIBF for applications to a variety of research fields.

Main Research Fields

  • Engineering

Related Research Fields

  • Mathematical & Physical Sciences


  • Heavy ion beam
  • Radio-frequency linear accelerator
  • Radio-frequency systems
  • Superconducting rf cavities
  • Radioisotope

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).


Related Links

Lab Members

Principal investigator

Osamu Kamigaito

Core members

Nobuhisa Fukunishi
Deputy Group Director
Hiroki Okuno
Deputy Group Director

Contact Information

204 Nishina LINAC Laboratory,
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: kamigait [at] riken.jp


Accelerator R&D Team
Hiroki Okuno (D.Sc.)
Ion Source Team
Takahide Nakagawa (D.Sc.)
Yoshihide Higurashi (D.Sc.)
Cyclotron Team
Naruhiko Sakamoto (D.Sc.)
Beam Dynamics and Diagnostics Team
Nobuhisa Fukunishi (D.Sc.)
Cryogenic Technology Team
Hiroki Okuno (D.Sc.)
Infrastructure Management Team
Masanori Kidera (D.Sc.)