聚变堆氦冷固态包层结构和6Li富集度对产氚率的影响

在聚变堆固态包层基本参数基础上，建立简化20°模型，包层分第1壁装甲、第1壁冷却板、氚增殖区和支撑结构。分别选择Li₄SiO₄和Li₂O做增殖材料，应用MCNP程序，研究第1壁结构布置和6Li富集度对产氚率的影响。结果表明：₆Li富集度适宜选择在30％~80％之间；第1壁选择Be装甲可提高产氚率；冷却管板的厚度应取3cm以下，以避免对产氚造成不利的影响。

Influence of Helium Cooled Solid Blanket Structure and 6Li Enrichment on Tritium Breeding Ratio in Fusion Reactor

Based on the preliminary parameters of fusion reactor, the calculation model with 20° range was built for the solid blanket including the first wall armor, the first wall cooling plate, the tritium breeding region and the support structure. Li₄SiO₄ and Li₂O were adopted as tritium breeder material, respectively. By using code MCNP, the influence of structure and ⁶Li enrichment on tritium breeding ratio was studied. The results show that ⁶Li enrichment in the range of 30% to 80% is suitable, the beryllium armor of first wall leads to increase of the tritium breeding ratio, and the thickness of first wall cooling plate should not exceed 3 cm to avoid negative effect on tritium production.