世界上许多国家建造了不少快堆基准装置,进行了大量的核数据积分检验工作。DF-Ⅵ快中子零功率反应堆不是一个基准装置。根据快堆发展的需要,同时又考虑已有核燃料数量的限制,我们对DF-Ⅵ装置进行了改建,以期多做一些积分检验工作。(1)新设计一个与上反射层的栅距、材料相同的不锈钢安全块,以使堆芯的轴向 In many countries in the world, many fast reactors have been built and a large number of nuclear data integral tests have been conducted. DF-Ⅵ fast neutron zero power reactor is not a reference device. According to the needs of the development of fast reactors, and taking into account the existing restrictions on the amount of nuclear fuel, we retrofitted the DF-VI device to do more integral test work. (1) a new design and a reflective layer of the pitch, the same material stainless steel safety block, so that the axial core