摘要
乏燃料的处理问题是我国乃至国际核电可持续发展的瓶颈问题之一,加速器驱动次临界系统(ADS)是嬗变核废料的绝佳选择。相对于快堆,ADS的能谱更硬,次锕系核素(MA)装载量更高。为了处理高放废物,研究次锕系核素的嬗变情况,使用百兆瓦ADS对CERCER燃料进行了2000 d的嬗变,使用程序FLUKA来模拟质子打靶的散裂反应,中子输运和燃耗耦合程序IMPC-Burnup 2.0来模拟MA核素嬗变,验证了其嬗变的可行性。结果表明,本实验燃料的直接裂变率约为11.26%,对反应堆中的MA核素起到了有效的嬗变作用。
The disposal of depleted fuel is one of the bottlenecks in the sustainable development of nuclear power all over the world.The Accelerator Driven Subcritical System(ADS)is an excellent choice for transmuting nuclear waste.Compared to fast neutron reactors,ADS has a harder energy spectrum and higher MA loading.In order to deal with High Level radioactive Waste(HLW)and to study the transmutation of minor actinides,we transmuted CERCER fuel for 2000 days using a 100-megawatt transmutation reactor.We use the code FLUKA to simulate the spallation reaction between the proton and the target material.The neutron transport and nuclides burnup coupling code IMPC-Burnup 2.0 is used to simulate the transmutation of MA.The results show that the direct fission rate is about 11.26%,which plays an effective role in transmuting MA nuclides in the reactor.
作者
郭宇尧
杨永伟
房鹏
吴翔
杨磊
赖航辉
周峰
朱雁凌
GUO Yuyao;YANG Yongwei;FANG Peng;WU Xiang;YANG Lei;LAI Hanghui;ZHOU Feng;ZHU Yanling(Institution of Modern Physics,Chinese Academy of Sciences,Lanzhou 73000,China;School of Nuclear Science and Technology,University of Chinese Academy of Science,Beijing 100049,China;Advanced Energy Science and Technology Guangdong Laboratory,Huizhou 516000,Guangdong,China)
出处
《原子核物理评论》
北大核心
2025年第2期371-376,共6页
Nuclear Physics Review
