keV 质子辐照对Kapton/Al光学性能的影响
Effect of keV proton irradiation on optical properties of Kapton/Al film
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摘要: 采用空间综合辐照设备对Kapton/Al薄膜进行了质子辐照地面模拟试验，选取质子能量90 keV,辐照通量5.0×1011 cm12·s-1。通过辐照前后光谱反射系数的变化考察了实验样品的光学性能退化特征。借助于反射光谱和紫外-可见吸收光谱和傅里叶转换红外光谱分析技术分析了辐照后Kapton/Al光学性能的退化机理。研究结果表明：辐照过程中样品表面发生了复杂的化学反应，随着辐照剂量的增加光能隙逐渐减小，Kapton吸收曲线的末端边缘发生红移并且在可见光区吸收强度增加。
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关键词:
- 质子辐照 /
- Kapton/Al薄膜 /
- 光学性能 /
- 光能隙 /
- 光谱反射系数
Abstract: The ground simulation tests of proton irradiation for Kapton/Al films were conducted using the space synthesis irradiating facility, in which the energy of protons was chosen as 90 keV, and the flux was 5.0×1011 cm-2·s-1. The degradation of optical property was investigated through changes of the spectral reflectance of specimens before and after the irradiation. The damage mechanism was studied by means of ultraviolet/visible absorption spectra and Fourier transform infrared of spectra. The analysis results demonstrate that some complex reactions occurred in the surface layer of the specimens during the irradiation. The optical energy gap reduces gradually with increasing fluence. The red shift of the end absorption edge and a strong increase in absorbance in the visible region are evid-
Key words:
- proton radiation /
- kapton/al film /
- optical property /
- optical energy gap /
- spectral reflectance
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