電子與質(zhì)子綜合輻照下ZnO白漆的光學(xué)性能
退化研究

電子與質(zhì)子綜合輻照下ZnO白漆的光學(xué)性能退化研究

摘要: 為研究電子與質(zhì)子綜合輻照中電子與質(zhì)子間的協(xié)合效應(yīng)，在模擬的空間環(huán)境下對S781白漆分別進(jìn)行了10 keV電子輻照、70 keV質(zhì)子輻照、和10 keV電子與70 keV質(zhì)子綜合輻照試驗(yàn)。研究了輻照后S781白漆光譜反射系數(shù)和太陽吸收比的變化，計(jì)算了綜合輻照效應(yīng)的相加性系數(shù)。結(jié)果表明，10 keV電子與70 keV質(zhì)子在S781白漆中的平均投影射程相近，輻照損傷機(jī)理相似，綜合輻照存在協(xié)合效應(yīng)，協(xié)合效應(yīng)減弱光學(xué)性能退化。

Abstract: 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.