J. Phys. IV France
Volume 133, June 2006
Page(s) 837 - 839
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 837-839

DOI: 10.1051/jp4:2006133168

Conceptual design of laser fusion reactor KOYO-fast - Concepts of reactor system and laser driver

Y. Kozaki1, N. Miyanaga1, T. Norimatsu1, Y. Soman2, T. Hayashi3, H. Furukawa4, M. Nakatsuka1, K. Yoshida5, H. Nakano5, H. Kubomura5, T. Kawashima5, J. Nishimae5, Y. Suzuki5, N. Tsuchiya5, T. Kanabe5, T. Jitsuno1, H. Fujita1, J. Kawanaka1, K. Tsubakimoto1, Y. Fujimoto1, J. Lu1, S. Matsuoka5, T. Ikegawa5, Y. Owadano5, K. Ueda5, K. Tomabechi5 and  Members of Reactor Design Committee in IFE Forum5

1  Institute of Laser Engineering, Osaka University, Yamada-oka 2-6, Suita, Japan
2  Mitsubishi Heavy Industry, Japan
3  Japan Atomic Energy Research Institute, Japan
4  Institute for Laser Technology, Japan
5  IFE Forum, Japan

We have carried out the design studies of KOYO-Fast laser fusion power plant, using fast ignition cone targets, DPSSL lasers, and LiPb liquid wall chambers. Using fast ignition targets, we could design a middle sized 300 MWe reactor module, with 200 MJ fusion pulse energy and 4 Hz rep-rates, and 1200MWe modular power plants with 4 reactor modules and a 16 Hz laser driver. The liquid wall chambers with free surface cascade flows are proposed for cooling surface quickly enough to a 4 Hz pulse operation. We examined the potential of Yb-YAG ceramic lasers operated at $150\sim 225$ K for both implosion and heating laser systems required for a 16-Hz repetition and 8 % total efficiency.

© EDP Sciences 2006