Centers & Labs

RIKEN Nishina Center for Accelerator-Based Science

Cryogenic Technology Team

Team Leader: Hiroki Okuno (D.Sci.)
Hiroki  Okuno(D.Sci.)

We are operating the cryogenic system for the superconducting ring cyclotron in RIBF. We are operating the helium cryogenic system in the south area of RIKEN Wako campus and delivering the liquid helium to users in RIKEN. Our goal is that we collect 100% of gas helium after usage of liquid helium in Wako campus.

Main Research Field

Engineering

Keywords

  • Superconductivity
  • Charge stripper
  • liquid He
  • Cyclotron
  • nuclear transmutation

Selected Publications

  1. Okuno, H., Dantsuka, T., Yamada, K., Kase, M., Maie, T., Kamigaito, O.:
    "SUPERCONDUCTING RING CYCLOTRON FOR RIKEN RI BEAM FACTORY IN JAPAN"
    Proc. of CEC/ICEC 2009 Tucson, USA 2009
  2. Okuno, H., Yamada, K., Ohnishi, J., Fukunishi, N., Ikegami, K., Maie, T., Hasebe, H., Kamigaito, O., Sakamoto, N., Kumagai, K., Yokouchi, S., Kase, M., Goto, A., Yano, Y.:
    "Commissioning of the Superconducting Ring Cyclotron for the RIKEN RI Beam Factory"
    IEEE Trans. Appl. Supercond., 18 (2008) 226
  3. Okuno, H., Yamada, K., Ohnishi, J., Fukunishi, N., Ikegami, K., Maie, T., Hasebe, H., Kamigaito, O., Sakamoto, N., Kumagai, K., Yokouchi, S., Kase, M., Goto, A., Yano, Y.:
    "The Superconducting Ring Cyclotron in RIKEN"
    IEEE Trans. Appl. Supercond., 17 (2007) 1063.
  4. Okuno, H., Ohnishi, J., Fukunishi, N., Tominaka, T., Ikegami, K., Goto, A., Fujinawa, T., Nagase, M., Ryuto, H., Yokouchi, S., Yano, Y.:
    "Magnets for the RIKEN Superconducting Cyclotron"
    Proc. 17th Int. Conf. on Cyclotrons and their Applications (Cyclotrons '04), Tokyo, Oct. (2004) 373.
  5. Kwaguchi T., Ikegami K., Ohtake M., Okuno H., Ohnishi J., and Goto A.:
    "Design of the He Cooling System of the Superconducting Ring Cyclotron"
    ICEC 18 (International Cryogenic Engineering Committee) Mumbai, India 2000

Lab Members

Principal Investigator

Hiroki Okuno
Team Leader

Core Members

Masato Nakamura
Senior Technical Scientist
Takeshi Maie
Nishina Center Technical Scientist
Tomoyuki Dantsuka
Technical Staff I

Contact information

2-1 Hirosawa,
Wako, Saitama
351-0198, Japan

Email: okuno [at] riken.jp

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