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.

Research Subject

Optimization of the cryogenic system for the large-scaled superconducting ring cyclotron.
The high efficiency of the liquid he‚Œium production cycle.

List of Selected Publications

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
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
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.
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.
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