Stray light and polarimetry considerations for the COSMO K-Coronagraph
Alfred G. de Wijn, Joan T. Burkepile, Steven Tomczyk, Peter G. Nelson,, Pei Huang, and Dennis Gallagher
TL;DR
This paper discusses the optical design and key considerations for the COSMO K-Coronagraph, focusing on stray light management and polarimeter performance to meet scientific objectives at Mauna Loa Solar Observatory.
Contribution
It provides a detailed analysis of stray light and polarimeter performance, which are critical for the coronagraph's effectiveness and accuracy.
Findings
Stray light suppression techniques are essential for high-contrast solar observations.
Camera and polarimeter performance directly impact measurement precision.
Design considerations ensure the instrument meets its scientific requirements.
Abstract
The COSMO K-Coronagraph is scheduled to replace the aging Mk4 K-Coronameter at the Mauna Loa Solar Observatory of the National Center for Atmospheric Research in 2013. We present briefly the science objectives and derived requirements, and the optical design. We single out two topics for more in-depth discussion: stray light, and performance of the camera and polarimeter.
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