At RIBF, heavy-ion beams are accelerated using radio-frequency electric fields. We are developing and enhancing radio-frequency technologies to efficiently accelerate more diverse and higher-intensity heavy-ion beams, thereby improving the performance of the RIBF accelerator complex and ensuring stable beam delivery. Furthermore, by implementing new radio-frequency components such as high-power semiconductor amplifiers, we will sustainably advance RIBF's research activities.

Research Subject

Heavy-ion beam
Radio-frequency
Cyclotron
Linear Accelerator

List of Selected Publications

K. Yamada, M. Fujimaki, H. Imao, O. Kamigaito, M. Komiyama, K. Kumagai, T. Nagatomo, T. Nishi, H. Okuno, K. Ozeki, N. Sakamoto, K. Suda, A. Uchiyama, T. Watanabe, Y. Watanabe:
"Operational Experience for RIKEN Superconducting Linear Accelerator"
21st International Conference on RF Superconductivity (SRF2023), Grand Rapids, MI, USA, p.30 (2023).
K. Yamada:
"Upgrade and Current Status of High-Frequency Systems for RIKEN Ring Cyclotron"
23rd International Conference on Cyclotrons and their applications (CYCLOTRONS2022), Beijing, China (ONLINE), p.6 (2022).
K. Yamada, T. Dantsuka, M. Fujimaki, E. Ikezawa, H. Imao, O. Kamigaito, M. Komiyama, K. Kumagai, T. Nagatomo, T. Nishi, H. Okuno, K. Ozeki, N. Sakamoto, K. Suda, A. Uchiyama, T. Watanabe, Y. Watanabe, E. Kako, H. Nakai, H. Sakai, K. Umemori, H. Hara, A. Miyamoto, K. Sennyu, T. Yanagisawa:
"Successful Beam Commissioning of Heavy-Ion Superconducting Linac at RIKEN"
20th International Conference on RF Superconductivity (SRF2021), Grand Rapids, MI, USA (ONLINE), p.167 (2021).
K. Yamada, K. Ozeki, K. Suda:
"Helium cryogenic system for the RIKEN superconducting heavy-ion linear accelerator -- System overview and operation –"
TEION KOGAKU (J. Cryo. Super. Soc. Jpn.), 56, p.201--208 (2021).
K. Yamada, T. Dantsuka, H. Imao, O. Kamigaito, K. Kusaka, H. Okuno, K. Ozeki, N. Sakamoto, K. Suda, T. Watanabe, Y. Watanabe, E. Kako, H. Nakai, H. Sakai, K. Umemori, H. Hara, A. Miyamoto, K. Sennyu, T. Yanagisawa:
"Construction of Superconducting Linac Booster for Heavy-Ion Linac at RIKEN Nishina Center"
19th International Conference on RF Superconductivity (SRF2019), Dresden, Germany, p.502 (2019).
K. Yamada, O. Kamigaito, K. Ozeki, N. Sakamoto, K. Suda, Y. Watanabe, E. Kako, H. Nakai, K. Umemori, A. Miyamoto, K. Sennyu, T. Yanagisawa:
"First Vertical Test of Superconducting QWR Prototype at RIKEN"
28th Linear Accelerator Conference (LINAC2016), East Lansing, MI, USA, p.939 (2016).
K. Yamada, O. Kamigaito, N. Sakamoto, K. Suda:
"Design of a New Superconducting Linac for the RIBF Upgrade"
27th Linear Accelerator Conference (LINAC2014), Geneva, Switzerland, p.1127 (2014).
K. Yamada, O. Kamigaito, N. Sakamoto, K. Suda:
"Conceptual Design of SC Linac for RIBF-Upgrade Plan"
16th International Conference on RF Superconductivity (SRF2013), Paris, France, p.137 (2013).
K. Yamada, K. Suda, S. Arai, M. Fujimaki, T. Fujinawa, H. Fujisawa, N. Fukunishi, Y. Higurashi, E. Ikezawa, H. Imao, O. Kamigaito, M. Kase, M. Komiyama, K. Kumagai, T. Maie, T. Nakagawa, J. Ohnishi, H. Okuno, N. Sakamoto, H. Watanabe, T. Watanabe, Y. Watanabe, H. Yamasawa, Y. Sato, A. Goto:
"Beam Commissioning and Operation of New Linac Injector for RIKEN RI-beam Factory"
3rd International Particle Accelerator Conference (IPAC2012), May 2012, TUOBA02, p.1071 (2012).
K. Yamada, T. Dantsuka, M. Fujimaki, T. Fujinawa, N. Fukunishi, A. Goto, H. Hasebe, Y. Higurashi, E. Ikezawa, O. Kamigaito, M. Kase, M. Kobayashi-Komiyama, H. Kuboki, K. Kumagai, T. Maie, M. Nagase, T. Nakagawa, J. Ohnishi, H. Okuno, N. Sakamoto, Y. Sato, K. Suda, M. Wakasugi, H. Watanabe, T. Watanabe, Y. Watanabe, Y. Yano, S. Yokouchi:
"Progress on the commissioning of Radioactive Isotope Beam Factory at RIKEN Nishina Center"
11th International Conference on Heavy Ion Accelerator Technology (HIAT09), Venezia, Italy, p.16 (2009).