The Simons Observatory will consist of a single large (6 m diameter) telescope and a number of smaller (∼0.5 m diameter) refracting telescopes designed to measure the polarization of the Cosmic Microwave Background to unprecedented accuracy. The large aperture telescope is the same design as the CCAT-prime telescope, a modified Crossed Dragone design with a field-of-view of over 7.8 degrees diameter at 90 GHz. This paper presents an overview of the cold reimaging optics for this telescope and what drove our choice of 350-400 mm diameter silicon lenses in a 2.4 m cryostat over other possibilities. We will also consider the future expandability of this design to CMB Stage-4 and beyond.

Dicker, S., Gallardo, P., Gudmudsson, J., Mauskopf, P., Ali, A., Ashton, P., et al. (2018). Cold optical design for the large aperture Simons' Observatory telescope. In Proceedings of SPIE - The International Society for Optical Engineering. SPIE [10.1117/12.2313444].

Cold optical design for the large aperture Simons' Observatory telescope

Coppi G.;
2018

Abstract

The Simons Observatory will consist of a single large (6 m diameter) telescope and a number of smaller (∼0.5 m diameter) refracting telescopes designed to measure the polarization of the Cosmic Microwave Background to unprecedented accuracy. The large aperture telescope is the same design as the CCAT-prime telescope, a modified Crossed Dragone design with a field-of-view of over 7.8 degrees diameter at 90 GHz. This paper presents an overview of the cold reimaging optics for this telescope and what drove our choice of 350-400 mm diameter silicon lenses in a 2.4 m cryostat over other possibilities. We will also consider the future expandability of this design to CMB Stage-4 and beyond.
poster + paper
Crossed Dragone; cryogenic optical design; silicon lenses; Simons Observatory
English
Ground-Based and Airborne Telescopes VII 2018
2018
Proceedings of SPIE - The International Society for Optical Engineering
2018
10700
107003E
none
Dicker, S., Gallardo, P., Gudmudsson, J., Mauskopf, P., Ali, A., Ashton, P., et al. (2018). Cold optical design for the large aperture Simons' Observatory telescope. In Proceedings of SPIE - The International Society for Optical Engineering. SPIE [10.1117/12.2313444].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/314073
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