随着核电的发展,核临界安全问题变得越来越突出。燃耗信任制技术越来越多地应用到核临界安全分析中,这使乏燃料的贮存、运输和后处理的能力大大提高,燃料循环后段的经济性显著提高。开展乏燃料的临界实验非常重要,在建造乏燃料临界实验装置前需对其进行大量详细的临界计算。 With the development of nuclear power, nuclear criticality security has become more and more prominent. The increasing use of fuel-burn trust technology in nuclear criticality safety analyzes greatly enhances the ability to store, transport and reprocess spent fuel, and significantly increases the economics of the post-fuel cycle segment. It is very important to carry out the critical experiment of spent fuel, and it needs a lot of detailed critical calculation before the construction of the critical facility for spent fuel.