Neutronics Performance of a Fusion-Fission Hybrid Reactor With Pressure Tube Assemblies

A fusion-fission hybrid reactor with pressure tube assemblies is proposed for energy production in this paper. In the light water cooled blanket, spent nuclear fuel from 33 GWD/t LWR and natural uranium oxide are taken as driver fuel for neutron/energy multiplication aiming at increasing uranium utilization efficiency. Tritium self-sufficiency is obtained by Li2O. The home developed NAHR code is employed to simulate the neutronics behavior in the blanket. The plasma conditions and configuration of ITER are used to the neutronics calculations. The results show that the blanket can be operated for at least 5 years with good performance of acceptable energy multiplication and tritium breeding. The first neutron wall loading is lower than 0.57 MW/m2.

TOWARDS LIGHT SOURCES FEATURING SUPERCONDUCTING MINIUNDULATORS

Besides the exploitation of the Helios 2 superconducting compact storage ring for user operations and for its own R&D work, SSLS envisions a 4th generation synchrotron light source to complement and, eventually, replace the current facility. This vision includes an accelerator system based on a superconducting linear accelerator with up to 5 recirculation loops for energy multiplication and recovery with the distinguishing feature that the light would be generated by superconducting mini- and micro-undulators. Under this programme, SSLS is pursuing the development of superconducting miniundulators including a proof-of-technology electron beam experiment in co-operation with the Shanghai Institute of Applied Physics and the analytical and numerical study of the fabrication tolerances of superconducting miniundulators with respect to their finite length field errors and mechanical errors.