Fusion-driven system;
Nuclear waste transmutation;
LAR tokamak;
D O I:
10.3938/jkps.65.1247
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
The transmutation characteristics of transuranics (TRUs) in a transmutation reactor based on a LAR (Low-aspect-ratio) tokamak as a neutron source are investigated. The optimum radial build of a transmutation reactor is found by using a coupled analysis of the tokamak systems and the neutron transport. The dependences of the transmutation characteristics on the aspect ratio A in the range of 1.5 to 2.5 and on the fusion power in the range of 150 to 500 MW are investigated. An equilibrium fuel cycle is developed for effective transmutation, and show that with one unit of the transmutation reactor based on the LAR tokamak producing fusion power in the range of a few hundred MWs, up to 3 PWRs (1.0 GW (e) capacity) can be supported with a burn-up fraction larger than 50%.