부산대학교 도서관

In light of the importance of helium production in influencing the behaviour of fast reactor fuels, in thiswork we present a burn-up module with the objective to calculate the production of helium in both inpileand out-of-pile conditions tracking the evolution of 23 alpha-decaying actinides. This burn-upmodule relies on average microscopic cross-section look-up tables generated via SERPENT high-fidelitycalculations and involves the solution of the system of Bateman equations for the selected set of actinidenuclides. The results of the burn-up module are verified in terms of evolution of actinide and heliumconcentrations by comparing them with the high-fidelity ones from SERPENT, considering two representativetest cases of (U,Pu)O2 fuel in fast reactor conditions. In addition, a code-to-code comparison ismade with the independent state-of-the-art module TUBRNP (implemented in the TRANSURANUS fuelperformance code) for the same test cases. The herein presented burn-up module is available in theSCIANTIX code, designed for coupling with fuel performance codes.