[1I08-10] Nuclear Transmutation System

[1I09] Study on core characteristics with moderator loading in accelerator driven system for plutonium transmutation

*Takumi Abe¹, Naoto Aizawa¹, Tomohiko Iwasaki¹ (1. Tohoku Univ.)

Keywords:Accelerator driven system, Transmutation, Burn-up of Plutonium , Numerical analysis

We took up an accelerator driven system as a safe and efficient method for decreasing surplus plutonium. ZrH loading was proposed as an improvement plan, and changes in core performance and nuclear characteristics were investigated by numerical analysis. As a result, it was shown that the reduction of the effective multiplication factor was suppressed by the promotion of the neutron capture reaction, and the transmutation performance of plutonium was also increased.