Abstract
To prevent spacecraft astrionics failure, a radiation-resistant element base is employed along with protective screening to maximize operational lifetime and reliability while minimizing scale and mass specifications. The problem of protecting the element base from radiation thus amounts to that of selecting the most effective protective screen. It is therefore vital to develop a thermal control coating with providing extra protection from the harmful effects of the space environment’s ionizing radiation for the element base, components and circuits of radio-electronic equipment.
The need to create such a coating is partly determined by the fact that modern spacecraft are increasingly using elements and astrionics components that are positioned on open platforms. In such circumstances, the use of thermal control coatings (TCC) with enhanced protective properties would be an effective means of providing additional ionizing cosmic radiation protection for astrionics elements. The effectiveness of this method is determined by the feasibility of applying a TCC of the necessary thickness on components of complex geometrical form, and by the possibility of regulating ionizing radiation linear energy loss by means of suitable fillers.
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Acknowledgments
Authors express gratitude to G.A. Protopopov (OAO “NII KP”) and A.B. Sazonov (D. Mendeleev UCTR) for calculations and tests.
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Tokar, S.V., Grigorievsky, A.V., Kiseleva, L.V. (2017). Integrated Analysis of Radiation-Protective Thermal Control Coatings. In: Kleiman, J. (eds) Protection of Materials and Structures from the Space Environment. Astrophysics and Space Science Proceedings, vol 47. Springer, Cham. https://doi.org/10.1007/978-3-319-19309-0_4
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DOI: https://doi.org/10.1007/978-3-319-19309-0_4
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Online ISBN: 978-3-319-19309-0
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