为了实现惯性约束聚变 (ICF)点火, 需要制备出均匀的高密度燃料靶。 对于氘氘 (DD) 冰层, 红外均化技术可用于改善其内表面粗糙度。 本文利用红外光谱仪和红外显微镜研究了辉光放电聚合物(GDP)薄膜和靶球的红外吸收性质, 得到了GDP薄膜材料特定波长处的红外吸收系数。 通过比较薄膜材料和靶球的红外吸收, 证实了热处理可以降低GDP材料中的氧化位点, 从而抑制羟基(—OH)峰的形成, 优化DD冰层的红外均化效果。 利用所得实验数据对DD均化实验中红外均化积分球所需要的红外功率和国家点火装置(national ignition facility, NIF)标准靶的红外透射率进行了估算, 计算结果对DD冰红外均化实验具有重要指导作用。

To achieve the object of NIF ignition , it is required to prepare high density fuel targets . For DD layer, IR-layering can be used to improve its surface roughness. In this paper, glow discharge polymer (GDP) flat films and capsules were synthesized. The IR absorptive properties of GDP were thoroughly studied by using infrared spectrometer and microscopy while the extinction coefficients of GDP flat film at specific wavelengths were obtained. By comparing absorption properties of flat films and capsules, it is found that thermal treatments can lower the OH content of GDP and thus improve IR layering of DD ice. Finally, the needed IR power of integration sphere were estimated by using data obtained for future DD layering experiments in this paper. The results have laid a solid foundation for the implementation of DD IR layering.