DREAMS: status update and assembly/alignment challenges

Jamie Soon; Tony Galla; Anna M. Moore; Tony Travouillon

doi:10.1117/12.2629072

26 August 2022 DREAMS: status update and assembly/alignment challenges

Jamie Soon, Tony Galla, Anna M. Moore, Tony Travouillon

Proceedings Volume 12182, Ground-based and Airborne Telescopes IX; 121822K (2022) https://doi.org/10.1117/12.2629072
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The Research School of Astronomy and Astrophysics at the Australian National University is currently building the Dynamic REd All-sky Monitoring Survey (DREAMS). DREAMS is a 0.5m wide-field near-infrared survey telescope that will be located at Siding Spring Observatory, Australia. DREAMS will utilise Indium Gallium Arsenide (InGaAs) detectors and a 3.71 sq. degree field-of-view to survey the visible sky to M_AB=17.8 in the J-band every 4-7 days. Due to the noise properties of the InGaAs detectors, DREAMS is required to convert a F/6 telescope beam to an F/2 detector beam. Combining this with the wide-field nature of the telescope, DREAMS requires a large number of additional optical and mechanical elements with relatively tight tolerances to meet the performance requirements. This paper discusses the current status of the assembly and alignment of DREAMS, along with the on-going alignment procedures, techniques, and methods used to meet these survey requirements.

Citation Download Citation

Jamie Soon, Tony Galla, Anna M. Moore, and Tony Travouillon "DREAMS: status update and assembly/alignment challenges", Proc. SPIE 12182, Ground-based and Airborne Telescopes IX, 121822K (26 August 2022); https://doi.org/10.1117/12.2629072

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