多种整体型可燃毒物对改进型快谱超临界水冷堆中子学特性的影响  

The Influence of Neutronics Characteristics to SCFR-M in Different Integral Type Burnable Poison

作　　者：唐璇[1] 于涛[1] 刘紫静[1] 谢金森[1] 张庚[1] 

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001

出　　处：《南华大学学报（自然科学版）》2015年第1期10-15,共6页Journal of University of South China：Science and Technology

基　　金：湖南省科技厅基金资助项目(2014GK3130)

摘　　要：建立了装载整体型可燃毒物的SCFR-M点火组件模型,计算分析了不同材料、质量分数的可燃毒物在多种布置方案下的组件中子学参数.综合考虑组件功率畸变、寿期初毒物对反应性的控制能力、寿期末毒物的反应性惩罚等因素,选择合适的整体型可燃毒物布置方案.结论表明稀土氧化物Er2O3以方案4布置在组件中具有较好的中子学性能.In this paper,a seed assembly model with integral type burnable poison of SCFR-M has been established. It calculated and analyzed the neutronics parameters of seed assembly with different materials,mass fractions of poison and layouts. After considering the distortion of power distribution of the assembly,the reactive suppression at the beginning of life and the residual absorption penalty in the end of life,it selected the most appropriate layout arrangement of burnable poison. The conclusion shows that Er2O3 in Scheme 4results in the best neutronics parameters.

关 键 词：SCFR-M 整体型可燃毒物 反应性控制 功率畸变 反应性惩罚 

分 类 号：TL32[核科学技术—核技术及应用]