Conceptual Design of Heavy Ion Fusion Reactor

概要

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An inertial confinement fusion reactor plant named HIBLIC-I (Heavy Ion Beam and LIthium Curtain) is proposed as a conceptual design, which has been worked out in the course of feasibility studies on the heavy ion fusion approach. An accelerator complex (RF linacs, storage rings and linear beam compressors) is adopted as the driver system to provide 6 beams of ^<208>pb^<+1> ions at 15GeV. Total beam energy of 4MJ with 160TW power is focused on a single shell, three-layered target of 4mmφ sphere. This target will give an energy gain of 100. A cylindrical double walled reactor chamber is made of HT-9 ferritic steel with three layers of liquid Li flow inside. The innermost layer forms a Li curtain, which is effective to recover the cavity pressure down to 10^<-4> Torr within a repetition time of ls. A thick upward flow of liquid Li plays the role of coolant and tritium breeder. A driver system is operated at the repetition rate of 10Hz and supplies beams for 10 reactor chambers, each of which is operated at 1Hz repetition. So, the plant yield of fusion power is 4000 MW_<th>, corresponding electric power output of 1.5GW.