电子与质子综合辐照下ZnO白漆的光学性能退化研究

为研究电子与质子综合辐照中电子与质子间的协合效应,在模拟的空间环境下对S781白漆分别进行了10keV电子辐照、70keV质子辐照、和10keV电子与70keV质子综合辐照试验。研究了辐照后S781白漆光谱反射系数和太阳吸收比的变化,计算了综合辐照效应的相加性系数。结果表明,10keV电子与70keV质子在S781白漆中的平均投影射程相近,辐照损伤机理相似,综合辐照存在协合效应,协合效应减弱光学性能退化。

The optical degradation of ZnO-pigmented white paint induced by the combined electron-plus-proton irradiations

In order to study the synergistic effect of electrons and protons in the combined electron-plus-proton irradiations, S781 white paint samples were irradiated in a simulated space environment with 10 keV electrons, 70 keV protons, and 10 keV electrons plus 70 keV protons, respectively. The irradiation-induced spectral reflectance change and the solar absorptance change were evaluated, and the additive coefficient for the combined irradiation effect was calculated. The results indicate that 10 keV electrons and 70 keV protons have a similar average projected range in S781 white paint and share almost the same damage mechanisms, therefore, the synergistic effect is noticeable in the combined irradiations, which reduces the optical degradation.