RIBF Research Division

• Radioactive Isotope Physics Laboratory
• Spin isospin Laboratory
• Nuclear Spectroscopy Laboratory
• High Energy Astrophysics Laboratory
Superheavy Element Research Group
Superheavy Element Production Team
Superheavy Element Research Device Development Team
• Astro-Glaciology Research Unit
Nuclear Transmutation Data Research Group
Fast RI Data Team
Slow RI Data Team
Muon RI Data Team
High-Intensity Accelerator R&D Group
High-Gradient Cavity R&D Team
High-Power Target R&D Team

Research Facility Development Division

Accelerator Group
Accelerator R&D Team
Ion Source Team
RILAC Team
Cyclotron Team
Beam Dynamics & Diagnostics Team
Cryogenic Technology Team
Infrastructure Management Team
Instrumentation Development Group
SLOWRI Team
Rare RI-ring Team
SCRIT Team
Research Instruments Group
BigRIPS Team
SAMURAI Team
Computing and Network Team
Detector Team

Accelerator Applications Research Group

Beam Mutagenesis Group
Ion Beam Breeding Team
Plant Genome Evolution Research Team
RI Application Research Group
Nuclear Chemistry Research Team
Industrial Application Research Team

Subnuclear System Research Division

• Quantum Hadron Physics Laboratory
• Strangeness Nuclear Physics Laboratory
• Radiation Laboratory
• Meson Science Laboratory
RIKEN BNL Research Center
Theory Group
Computing Group
Experimental Group
• RIKEN Facility Office at RAL

Directly under the Nishina Center

• Safety Management Group
User Liaison Group
RIBF User Liaison Team
Outreach Team

Accelerator Group

Staff

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