Impact of armor materials on tritium breeding ratio in the fusion reactor blanket
Impact of armor materials on tritium breeding ratio in the fusion reactor blanket
复制标题
铠装材料对聚变反应堆包层氚增殖率的影响
DOI：
10.1016/s0022-3115(02)01587-8
复制
发表时间：
2003
影响因子：
3.1
通讯作者：
T. Nishitani
中科院分区：
文献类型：
--
作者：
S. Sato;T. Nishitani
采用蒙特卡罗中子输运计算方法研究了装甲材料对聚变堆包层氚增殖率的影响。在包层中应用中子倍增器的情况下，通过安装钨装甲来降低TBR。另一方面，通过安装铍装甲来增加TBR。随着包层中铍与氚增殖剂的体积比的增加，由于安装钨装甲而导致的TBR的降低增加。从TBR的角度来看，推荐不带钨装甲的包层设计，因为TBR的设计裕度很小。另一方面，由于安装钨装甲而导致的TBR的降低可以通过在多层概念中的第一层中安装增殖区来减轻。通过修改锂富集和增殖/中子倍增器的布置，可以改善由于安装钨装甲而降低的TBR。
We have studied the impact of armor materials on the tritium breeding ratio (TBR) in the fusion reactor blanket by Monte Carlo neutron transport calculations. In case a neutron multiplier is applied in the blanket, the TBR is decreased by installing the tungsten armor. On the other hand, the TBR is increased by installing the beryllium armor. The reduction of the TBR due to the installation of the tungsten armor is increased with increasing the volume ratio of the beryllium to the tritium breeder in the blanket. The blanket design without the tungsten armor is recommended from the view point of the TBR, since the design margin is very little for the TBR. On the other hand, the reduction of the TBR due to installation of the tungsten armor can be mitigated by installing the breeder region in the first layer in the multi-layered concept. By modification of the Li enrichment and the arrangement of the breeder/neutron multiplier, decreased TBR due to installation of the tungsten armor can be improved.