【摘要】 针对长寿期堆芯的需要,分别开展整体型可燃毒物和分离型可燃毒物的选型研究,并进一步开展了不同类型可燃毒物的匹配研究。研究结果表明:整体型可燃毒物宜采用燃耗较慢的铒、铪等材料;分离型可燃毒物宜采用燃耗较快的钆、硼等材料;合理搭配使用快、慢燃耗可燃毒物,有利于提高长寿期堆芯的综合性能。更多还原

【Abstract】 Aiming the needs of long-life core,this paper studied the selection of both integrated type burnable poisons and separated type burnable poisons,and also studied the matching of different types of burnable poisons.The results show that:the burnable poisons with lower burnup rate,such as erbium and hafnium,are more suitable for the integrated type;the burnable poisons with higher burnup rate,such as gadolinium and boron,are more suitable for separated type;and the performance of long-life core can be enhanced through a proper matching of burnable poisons with low and high burnup rate.更多还原