29 July 2016 Trade-off between TMA and RC configurations for JANUS camera
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Abstract
JANUS (Jovis Amorum Ac Natorum Undique Scrutator) is a high-resolution visible camera designed for the ESA space mission JUICE (Jupiter Icy moons Explorer). The main scientific goal of JANUS is to observe the surface of the Jupiter satellites Ganymede and Europa in order to characterize their physical and geological properties. During the design phases, we have proposed two possible optical configurations: a Three Mirror Anastigmat (TMA) and a Ritchey-Chrétien (RC) both matching the performance requirements. Here we describe the two optical solutions and compare their performance both in terms of achieved optical quality, sensitivity to misalignment and stray light performances.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. Greggio, D. Magrin, M. Munari, R. Paolinetti, A. Turella, M. Zusi, G. Cremonese, S. Debei, V. Della Corte, E. Friso, H. Hoffmann, R. Jaumann, H. Michaelis, R. Mugnuolo, A. Olivieri, P. Palumbo, R. Ragazzoni, N. Schmitz, "Trade-off between TMA and RC configurations for JANUS camera", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 990451 (29 July 2016); doi: 10.1117/12.2231927; https://doi.org/10.1117/12.2231927
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