原子能科学技术2016，Vol.50Issue(8)：1440-1444,5.DOI:10.7538/yzk.2016.50.08.1440
MA 含量对 ADS 堆芯动力学参数的影响研究
Investigation of MA Content Effect on Kinetic Parameter in ADS Core
摘要
Abstract
The effective delayed neutron fraction (βef ),mean neutron generation time (Λ)and reactivity feedback coefficient (α)are the most important parameters in nuclear reactor kinetics.In this study,Monte Carlo method was applied to calculate the kinetic parameters of accelerator driven sub-critical system (ADS)cores,and the effect of mi-nor actinides (MA)content on these parameters was analyzed.The different contents of MA in the fuel were investigated to determine its effect on the kinetic parameters.The results show that when the content of MA reaches 5% in the fuel,theβef andΛ decrease by about 18% and 31%,respectively.With the increase of MA content from 0% to 5%,the average value of Doppler feedback coefficientαD varies from -0.56 pcm/K to-0.36 pcm/K,and the average value of coolant feedback coefficient αC varies from-2.1 1 pcm/K to -1.73 pcm/K.关键词
动力学参数/ADS 堆芯/次锕系核素/蒙特卡罗方法Key words
kinetic parameter/ADS core/minor actinides/Monte Carlo method分类
能源科技引用本文复制引用
罗润,宋洪兵,赵福宇..MA 含量对 ADS 堆芯动力学参数的影响研究[J].原子能科学技术,2016,50(8):1440-1444,5.基金项目
高等学校博士学科点专项科研基金资助项目(20120201110047) （20120201110047）
