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90keV,辐照通量5.0×1011cm-2.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。
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 ×10^11 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 evident.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2007年第3期500-502,共3页
High Power Laser and Particle Beams
基金
国家自然科学基金资助课题(50431020)
作者简介
李瑞琦（1970-），女，博士研究生，主要从事功能材料空间环境效应研究；Leerq@sina．com。
