多群蒙卡输运与点燃耗耦合程序系统TRITON基准验证

TRITON程序系统耦合了多群蒙特卡罗输运程序KENO V.a与点燃耗程序ORIGEN-S,具有几何适应性强、截面处理能力灵活、计算速度快等显著特点.本文基于爱达荷国家实验室（INL）钍基燃料元件燃耗基准题,开展了TRITON程序燃耗功能的验证,结果与INL采用MOCUP程序给出的结果吻合很好.同时,燃耗核素选取对TRITON计算结果的影响分析表明对于钍基燃料,只有在考虑Th-U循环重要核素的前提下,TRITON才能给出正确结果.上述结论为TRITON程序的应用奠定了基础.

Benchmark Verification of Multi-group Monte Carlo Transport andPoint-Burnup Codes Coupling System TRITON

TRITON couples multi group Monte Carlo Transport code KENO V. a and pointburnup code ORIGEN-S. It features adaptability on complex geometries,flexible processing ability on cross section and rapid calculating speed. Based on the thorium-based fuel cell benchmark of Idaho National Laboratory（ INL）,the verification on TRITON burnup calculation was performed,which showed good coincidence with the result of MOCUP code by INL. Furthermore,the results of burnup isotopes selection schemes in TRITON showed that,for thorium based fuel,only important nuclides on Th-U cycle was included,correct results can be obtained by TRITON. Conclusions in the present paper will support further applications of TRITON.