Numerical simulation of factors influencing the additional thermal characteristics of focal vane in Space Solar Telescope

Thermal performance and scattering properties are key characteristics for detection, identification, tracking and imaging of large aperture & small field of view (FOV) solar telescopes. For previous thermal scheme of the Space Solar Telescope (SST), a quasi-static thermal model of focal vane (FV) has been developed considering solar radiation of space environment. Three series of FVs with three geometry composing function factors (S′, H and θ) are investigated for additional thermal characteristics (ATC) of varying prime focal plane (PFP) temperature. The results show that optimization is necessary for S′, H and θ to minimize ATC. The integrated thermal-scattering (T-S) method provides a numerical reference optima design of FV in experimental phase next.