Scientific performance analysis of the SYZ design vs. RC design for China's LOT

Donglin Ma; Zheng Cai; Liangzhou Chen

doi:10.1117/12.2303373

25 July 2018 Scientific performance analysis of the SYZ design vs. RC design for China's LOT

Donglin Ma, Zheng Cai, Liangzhou Chen

Proceedings Volume 10700, Ground-based and Airborne Telescopes VII; 107004A (2018) https://doi.org/10.1117/12.2303373
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Currently, there is a discussion about constructing a new large optical-infrared telescope, in which the diameter of the primary mirror is 12m (Su et al., 2016). Su et al. (2016) propose an innovative design (SYZ design) which consists of three mirrors with non-zero power, including a relay mirror below the primary mirror. This design yields a good imaging quality and a relatively flatten field curvature at Nasmyth focus. To evaluate the science compatibility of this three-mirror telescope, we compare the system performance of SYZ design with conventional two-mirror telescope designs such as Ritchey–Chrétien (RC) design and Aplanatic Gregorian (AG) design available in the world in this report. We found that SYZ telescope yield a superb imaging quality. Nevertheless, RC and AG designs has a higher total throughput which translate to smaller equivalent-noise-area (ENA).

Citation Download Citation

Donglin Ma, Zheng Cai, and Liangzhou Chen "Scientific performance analysis of the SYZ design vs. RC design for China's LOT", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107004A (25 July 2018); https://doi.org/10.1117/12.2303373

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