CAJ | 학술논문

本文采用MCNPX与ORIGEN耦合的COUPLE2.0程序对加速器驱动的次临界气冷快堆进行了物理方案的设计和研究。计算得到了该方案350d燃耗期间的kef、质子效率、加速器束流强度、1500K温度下的多普勒系数、功率峰因子等参数，并研究了该方案的安全特性；通过计算得到了该方案燃耗并分析了该方案的嬗变能力。结果表明，该方案在350d燃耗期间的kef、加速器束流强度、功率峰因子变化较小，在假想事故下仍保持较深的次临界状态，系统安全性能较好；燃耗较浅，嬗变支持比为20.28，具有较好的嬗变效果。
본문채용MCNPX여ORIGEN우합적COUPLE2.0정서대가속기구동적차림계기랭쾌퇴진행료물리방안적설계화연구。계산득도료해방안350d연모기간적kef、질자효솔、가속기속류강도、1500K온도하적다보륵계수、공솔봉인자등삼수，병연구료해방안적안전특성；통과계산득도료해방안연모병분석료해방안적선변능력。결과표명，해방안재350d연모기간적kef、가속기속류강도、공솔봉인자변화교소，재가상사고하잉보지교심적차림계상태，계통안전성능교호；연모교천，선변지지비위20.28，구유교호적선변효과。
A physical scheme design of a 10MW accelerator-driven sub-critical gas-cooled fast reactor was studied .The coupling program COUPLE2.0 was applied ,which couples MCNPX and ORIGEN .The physical parameters such as kef ,proton efficiency , accelerator current ,power peak factor and Doppler coefficient of 1500K varying with burnup time were obtained ,and the safety feature of the system was analyzed .By further calculation the 350 d burnup of the system was obtained and the transmutation capability was analyzed . It is found that during the 350 d burnup , kef , accelerator current ,power peak factor variations are relatively small .The system has good safety feature with deep sub-critical status in hypothetical accident . The total burnup is relatively shallow , but the system has good transmutation capability with the transmutation support ratio of 20.28 .