摘要
采用欧洲活化程序EASY-2007对C276的活化特性进行了活化计算与分析。计算所需中子能谱选取总中子通量约为2.47×1016n/cm2/s的瓦特裂变谱,辐照时间选取了0.5年、1年和1.5年三种情况。活化计算结果包括辐照停堆后不同冷却时间内C276活化产生的放射性活度、衰变余热及接触剂量率等。另外,本文将C276的活化特性与Zr-4及M5包壳材料作了初步的比较分析。结果表明,从中子活化角度看,C276与Zr-4相比并没有优势,但与M5相比还是有一定优势存在的。
C276 is one of the candidate cladding materials for the next-generation reactors and comprehensive resear- ches are under way to evaluate its characteristics. Activation inventory of C276 has been calculated and analyzed by u- sing the European Activation System EASY - 2007. Watt fission spectrum with the total neutron flux of 2.47×10^16 n/ cm2/s was employed, and the irradiation time of 0.5 year, lyear and 1.5years were chosen for the inventory calcula- tions. The concluded results include activity, afterheat and contact dose rate at shutdown. In addition, the preliminary comparison and analysis among the C276 and Zr-4, M5 on the activation characteristics were presented. The results indicate that C276 has no advantages comparing with Zr- 4, but has definite advantages comparing with M5 from the viewpoint of neutron activation.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2012年第6期105-108,共4页
Journal of North China Electric Power University：Natural Science Edition
基金
国家自然科学基金资助项目(10875042)
科技部"973"ITER国内配套重点项目(2009GB109003)
中央高校基本科研业务费专项基金资助(10ZG08)
关键词
C276
包壳
中子辐照
活化
C276
cladding
neutron irradiation
activation
