Transmutation of fission products by high-field tokamak reactor with force-balanced coils
1998
Abstract A DT sub-ignited tokamak reactor is investigated as a transmuter of fission products with an average neutron wall loading of 1 MW m −2 basing on a novel coil concept to generate strong magnetic fields. By the use of the force-balanced coils (FBC) which reduces the net centering force by a factor of ten from that exerted on toroidal magnetic coils of the same dimension, the steady-state tokamak reactor can be designed to achieve the fusion reaction of Q DT ≃3.7. To transmute the fission product 129 I effectively, a blanket is designed which consists of the neutron multiplier Be, the tritium breeder Li 2 O and a neutron reflector C. Using the optimal blanket, the amount of 129 I is effectively halved in 2 years with quasi-self-consistent condition, Q NET ≃5.3, local TBR>1.7 and nuclear heating rate in superconducting magnets −3 .
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