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研究了加速器驱动洁净核能系统 (ADS)次临界反应堆内核素的演化。分析结果表明 :ADS具有嬗变长寿命核废物的能力。从快堆和热堆的比较可知 ,ADS的快堆具有输出功率大、长寿命超铀放射性废物的累积水平低、裂变产物对反应堆反应性和能量增益影响小等优点。这些优点在利用U Pu燃料循环的次临界堆中十分明显。对于利用Th U燃料循环的次临界堆 ,热堆和快堆都是可以工作的 ;而对于U Pu燃料循环的系统 ,快堆则是较好的选择。
The evolution of nuclides in accelerator-driven clean nuclear power system (ADS) sub-critical reactors was investigated. The results show that ADS possesses the ability of transmuting long-lived nuclear waste. From the comparison of fast reactor and hot reactor, ADS fast reactor has the advantages of large output power, low level of accumulation of long-lived transuranic radioactive waste and little influence of fission products on reactor reactivity and energy gain. These advantages are evident in subcritical stacks that utilize the U Pu fuel cycle. For sub-critical heaps that utilize Th U fuel cycles, both hot and fast reactors are operational; fast reactors are a good choice for U Pu fuel cycle systems.