Analysis Of Three-Dimensional Monte Carlo Neutronics Performance For Chinese ITER Helium Cooled Solid Breeder Test Blanket Module

Neutronics performance analysis plays an important role in the evaluating and verifying of ITER Test Blanket Module(TBM).It can provide database for the design of TBM relative system,Based on the ITER Chinese helium cooled solid breeder(CH-HCSB) test blanket module of the 3×6 sub-modules options, three-dimensional neutronic calculations were performed using the Monte Carlo code MCNP.Key nuclear responses of TBM,such as nuclear heating and tritium production rate were analyzed.Furthermore,the neutron fluxes in the TBM components were obtained by the preceding MCNP calculation.These fluxes were then passed to FISPACT-2007 for the activation calculation,and the activation characteristics include activity,afterheat and contact dose rate.The tritium production rate is about 13.39mg/d while considering ITER duty factor of 0.22.The total nuclear heating is about 0.505MW.The activated materials can be recycling after an interim storage period of 100 years.The results can provide significant theory reference base for the optimization and next plan of the TBM.