Centers & Labs

RIKEN Nishina Center for Accelerator-Based Science

Accelerator Group

Group Director: Osamu Kamigaito (D.Sci.)
Osamu  Kamigaito(D.Sci.)

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 Field


Related Research Fields

Mathematical and 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. Kase, M. Kidera, M. Komiyama, K. Kumagai, T. Maie, T. Nagatomo, T. Nakagawa, M. Nakamura, J. Ohnishi, H. Okuno, K. Ozeki, N. Sakamoto, K. Suda, S. Watanabe, T. Watanabe, Y. Watanabe, K. Yamada, H. Yamasawa:
    "Present Status ad Future Plan of RIKEN RI Beam Factory"
    Proceedings of the 7th International Particle Accelerator Conference (IPAC2016), Busan, Korea, TUPMR022, p. 1281 (2016).
  2. O. Kamigaito:
    "World-wide Efforts on Rare Isotope and Radioactive Beams"
    Proceedings of the 4th International Particle Accelerator Conference (IPAC2013), Shanghai, China, ERXCB201, p. 4000 (2013).
  3. H. Okuno, N. Fukunishi, O. Kamigaito:
    "Progress of RIBF Accelerators"
    Progress of Theoretical and Experimental Physics, 03C002. (2012).
  4. O. Kamigaito:
    "Rare-Isotope Beam Facilities in Asia"
    Proceedings of 12th Heavy Ion Accelerator Technology Conference (HIAT2012), Chicago, USA, MOB05, p. 28 (2012).
  5. 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, p. 3823 (2012).
  6. A. Goto:
    "Review of High Power Cyclotrons for Heavy Ion Beams"
    Proceednigs of the 19th International Conference on Cyclotrons and their Applications (CYCLOTRONS2010), Lanzhou, China, MOM2CIO01, p. 9 (2010).
  7. Y. Yano:
    "The RIKEN RI Beam Factory Project: A status report"
    Nucl. Instrum. Methods B 261, 1009 (2007).
  8. O. Kamigaito:
    "Circuit-model representation of external-Q calculation"
    Phys. Rev. ST Accel. Beams 9, 062003 (2006).

Lab Members

Principal Investigator

Osamu Kamigaito
Group Director

Core Members

Nobuhisa Fukunishi
Deputy Group Director
Hiroki Okuno
Deputy Group Director
Takahiro Karino
Junior Research Associate