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Optical Properties of Thermal Control Coatings after Exposure to 90 keV Electrons
The Journal of the Astronautical Sciences ( IF 1.8 ) Pub Date : 2020-11-21 , DOI: 10.1007/s40295-020-00241-0
Elena A. Plis , Daniel P. Engelhart , Russel Cooper , Dale Ferguson , Stephanie Schiefer , Ryan Hoffmann , Heather Cowardin , Miles Bengtson , Jordan Maxwell

Thermal control paints are widely used in spacecraft industry to protect the spacecraft/satellite surfaces from the deleterious effects of the space environment. Dynamic reflectivity of spacecraft materials must be taken into account for improved space situational awareness (SSA). Additionally, a thorough characterization of each spacecraft material’s optical properties while on orbit can be used for designing of spacecraft surfaces for optimal thermal properties throughout a mission lifetime. This work presents the initial experimental results on performance of different organic and inorganic thermal control paints manufactured by AZ Technology exposed to various fluences of high energy (90 keV) electrons, designed to simulate a portion of the geosynchronous Earth orbit (GEO) space environment. In-vacuo reflectance spectroscopy was utilized to qualify and quantify radiation induced changes of optical properties in the studied coupons of thermal control paints.



中文翻译:

暴露于90 keV电子后,热控涂层的光学性能

热控涂料广泛用于航天器行业,以保护航天器/卫星表面免受航天环境的有害影响。必须考虑航天器材料的动态反射率,以改善空间态势感知(SSA)。另外,对每种航天器材料在轨道上的光学特性的全面表征可用于设计航天器表面,以在整个任务寿命内实现最佳热性能。这项工作提出了由AZ Technology生产的不同有机和无机热控涂料在各种高通量(90 keV)电子通量下暴露的性能的初步实验结果,这些涂料设计用于模拟地球同步地球轨道(GEO)空间环境的一部分。真空中 反射光谱用于鉴定和量化热控制涂料试样中辐射诱发的光学性能变化。

更新日期:2020-11-21
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