RILAC Team

Research Areas

Our team is responsible for the operation, maintenance, and upgrade of the RIKEN heavy-ion linear accelerator (RILAC), a unique variable-frequency linac that has been in operation since 1980. RILAC was upgraded in the 1990s as part of the RI Beam Factory (RIBF) project, and made a significant contribution to the synthesis and discovery of the element 113, nihonium. In 2019, a superconducting linac booster, SRILAC, was installed, and it will play a major role in the synthesis of heavier new elements, development of the technologies for production of medical radioisotopes, and as a powerful injector to RIBF.

Research Subject

1. The long term high stability of the RILAC operation.
2. Improvement of high efficiency of the RILAC operation.

List of Selected Publications

1. Watanabe, Y., Ikezawa, E., Sato, Y., Okuno, H., Nakagawa, T., Higurashi, Y., Ohnishi, J., Fujimaki, M., Fukunishi, N., Yokouchi, S., Kumagai, K., Komiyama, M., Watanabe, H., Kase, M., Goto, A., Kamigaito, O.:
   "CONSTRUCTION OF BEAM TRANSPORT LINE FOR A NEW INJECTOR OF RILAC (RIKEN HEAVY ION LINAC)"
   Proceedings of the 6th Annual Meeting of Particle Accelerator Society of Japan (2009)
   
2. Watanabe, Y., Ikezawa, E., Imao, H., Ohnishi, J., Okuno, H., Kase, M., Kamigaito, O., Kumagai, K., Goto, A., Komiyama, M., Sakamoto, N., Suda, K., Nakagawa, T., Higurashi, Y., Fukunishi, N., Fujinawa, T., Fujimaki, M., Maie, T., Yamada, K., Yokouchi, S.:
   "CONSTRUCTION OF THE RILAC2 (RIKEN HEAVY-ION LINAC 2) LINE"
   Proceedings of the 7th Annual Meeting of Particle Accelerator Society of Japan (2010)
   
3. Watanabe, Y., Ikezawa, E., Ohnishi, J., Kumagai, K., Komiyama, M., Fujinawa, T., Fujimaki, M., Maie, T., Yamasawa, H., Yokouchi, S., Watanabe, T., Watanabe, H.:
   "Installation of a New Injector RILAC2 for RIKEN RIBF"
   J. Particle Accelerator Society of Japan, Vol. 7, No. 4, 285-293 (2010)
   
4. Watanabe, Y., Fujimaki, M., Fukunishi, N., Hasebe, H., Higurashi, Y., Ikezawa, E., Imao, H., Kageyama, T., Kamigaito, O., Kase, M., Kidera, M., Komiyama, M., Kuboki, H., Kumagai, K., Maie, T., Nagase, M., Nakagawa, T., Ohnishi, J., Okuno, H., Sakamoto, N., Suda, K., Watanabe, H., Watanabe, T., Yamada, K., Yokouchi, S., Aihara, T., Fukuzawa, S., Hamanaka, M., Ishikawa, S., Kobayashi, K., Kotaka, Y., Koyama, R., Nakamura, T., Nishida, M., Nishimura, M., Ohki, T., Oyamada, K., Shibata, J., Tamura, M., Tsukiori, N., Uchiyama, A., Yadomi, K., Yamauchi, H.:
   "PRESENT STATUS OF RIKEN RING CYCLOTRON"
   Proceedings of 3rd International Particle Accelerator Conference, 433-435 (IPAC 2012)
   
5. Ikezawa, E., Tamura, M., Ohki, T., Aihara, T., Yamauchi, H., Oyamada, K., Yusa, A., Uchiyama, A., Watanabe, Y., Kase, M., Kamigaito, O.:
   "Present Status of RILAC"
   Proceedings of the 10th Annual Meeting of Particle Accelerator Society of Japan (2013)
   
6. Ikezawa, E., Tamura, M., Ohki, T., Aihara, T., Yamauchi, H., Oyamada, K., Yusa, A., Uchiyama, A., Watanabe, Y., Kase, M., Kamigaito, O.:
   "Present Status of RILAC"
   Proceedings of the 11th Annual Meeting of Particle Accelerator Society of Japan (2014)
   
7. Ohki, T., Ikezawa, E., Yamauchi, H., Oyamada, K., Tamura, M., Yusa, A., Kaneko, K., Watanabe, Y., Uchiyama, A., Kase, M., Kamigaito, O.:
   "Present Status of RILAC",
   Proceedings of the 12th Annual Meeting of Particle Accelerator Society of Japan (2015) p309-311.
   
8. Watanabe, Y., Kase, M., Fujimaki, M., Fukunishi, N., Ikezawa, E., Kamigaito, O., Kumagai, K., Maie, T., Ohnishi, J., Ohzeki, K., Okuno, H., Sakamoto, N., Suda, K., Watanabe, S., Yamada, K., Fukuzawa, S., Hamanaka, M., Ishikawa, S., Kobayashi, K., Koyama, R., Nakamura, T., Nishida, M., Nishimura, M., Shibata, J., Tsukiori, N., Yadomi, K.:
   "RIKEN RING CYCLOTRON (RRC) ",
   Proc. the 13th International Conference on Heavy Ion Accelerator Technology, Yokohama, Japan (2015) p54-57.
   
9. Ikezawa, E., Fujimaki, M., Higurashi, Y., Kamigaito, O., Kase, M., Komiyama, M., Nakagawa, T., Ozeki, K., Sakamoto, N., Suda, K., Uchiyama, A., Yamada, K., Kaneko, K., Ohki, T., Oyamada, K., Tamura, M. Yamauchi, H., Yusa, A.:
   "HEAVY-ION BEAM ACCELERATION AT RIKEN FOR SUPER-HEAVY ELEMENT SEARCH",
   Proc. the 13th International Conference on Heavy Ion Accelerator Technology, Yokohama, Japan (2015) p222-224.
   
10. Yamauchi, H., Ikezawa, E., Ohki, T., Oyamada, K., Tamura, M., Yusa, A., Kaneko, K., Watanabe, Y., Uchiyama, A., Kase, M., Kamigaito, O.:
    "Present Status of RILAC",
    Proceedings of the 13th Annual Meeting of Particle Accelerator Society of Japan (2016) p1336-1338.