贮氚金属薄膜源的优化与制备

The Optimization and Preparation of Tritium-storage thin Metal film Sources

为提高能量密度,以贮氚金属薄膜作为平板型β辐射伏特效应核电池的放射源。利用Materials Studio软件中的CASTEP模块计算了氚在贮存金属薄膜中的扩散速度。用MC-SET和MCNP软件模拟了氚源在钯、钪和钛三种金属薄膜中的饱和厚度,为提高放射源利用率提供参考。建立了实验室氢加载系统,可以实现在不同温度和压力下氢气向金属薄膜的扩散,制备贮氚金属薄膜。

The metal films filled with tritium were used as the radioactive source in the plate-type betavoltaic battery for high energy density. The diffusion velocity of tritium into the metal storage film is simulated using the CASTEP module of Materials Studio software. The saturation thicknesses of tritium source in Palladium, Scandium and titanium films were simulated with MC-SET and MCNP softwares, which can provide reference for improving the utilization of radioactive sources. A hydrogen loading system was established, which can pro- vide the conditions for hydrogen diffusion into the thin metal films under different temperature and pressure, and so that the tritium storage metal films were made.