HFETR <sup>6</sup>LiD中子转换器芯体厚度优化研究

HFETR ⁶LiD中子转换器芯体厚度优化研究

摘要: 介绍了通过在裂变堆中布置⁶LiD转换器将热中子转换为14 MeV中子的原理，给出了⁶LiD转换器结构和材料的选取原则，建立了芯体厚度优化的目标函数。分别计算分析了在水和氦气两种冷却剂情况下，转换器结构、辐照样品数量对⁶LiD芯体厚度优化值的影响，给出⁶LiD芯体厚度对堆芯性能的影响。结果表明，布置于HFETR辐照孔道中的⁶LiD转换器芯体厚度优化设计值为0.7 mm。

Abstract: The principle of ⁶LiDconverter of thermal to 14 MeV neutron was introduced, the configuration and materials used in ⁶LiD converter for HFETR were chosen, and the optimal function of ⁶LiD converter thickness was obtained. The effect of converter target construction and number of irradiation material sample to ⁶LiD optimal thickness with water and He as coolant respectively, were computed. The results show that the ⁶LiD optimal thickness is 0.7 mm.