Preliminary design and performance estimate of a prime focus camera for the 2.3m Thai National Telescope

Weerapot Wanajaroen; Christophe Buisset; Thierry Lépine; Suwicha Wannawichian; Saran Poshyachinda; Boonrucksar Soonthornthum

doi:10.1117/12.2311931

6 July 2018 Preliminary design and performance estimate of a prime focus camera for the 2.3m Thai National Telescope

Weerapot Wanajaroen, Christophe Buisset, Thierry Lépine, Suwicha Wannawichian, Saran Poshyachinda, Boonrucksar Soonthornthum

Author Affiliations +

Proceedings Volume 10700, Ground-based and Airborne Telescopes VII; 107003Q (2018) https://doi.org/10.1117/12.2311931
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The National Astronomical Research Institute of Thailand (NARIT) is currently developing a five lenses prime focus camera in order to enlarge the field of view of the 2.3 m Thai National Telescope to a one degree diameter circle. The instrument shall operate in the spectral bands B, V, R and I of the Johnson-Cousins photometric system with an angular resolution better than 2 arcsecond. In this paper, we describe the camera design, we estimate the theoretical performance in the V-band and we show that the theoretical angular resolution after tolerancing is better that 1.3 arcsecond. Then, we present the results of the stray light analysis and we show that the system is free of critical ghost images.

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Weerapot Wanajaroen, Christophe Buisset, Thierry Lépine, Suwicha Wannawichian, Saran Poshyachinda, and Boonrucksar Soonthornthum "Preliminary design and performance estimate of a prime focus camera for the 2.3m Thai National Telescope", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107003Q (6 July 2018); https://doi.org/10.1117/12.2311931

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