Lucky imaging with the Leonardo SAPHIRA at Siding Spring Observatory

Annino Vaccarella; Robert Sharp; Michael Ellis; James Gilbert; Shanae King; David Adams

doi:10.1117/12.2539779

3 January 2020 Lucky imaging with the Leonardo SAPHIRA at Siding Spring Observatory

Annino Vaccarella, Robert Sharp, Michael Ellis, James Gilbert, Shanae King, David Adams

Proceedings Volume 11203, Advances in Optical Astronomical Instrumentation 2019; 1120313 (2020) https://doi.org/10.1117/12.2539779
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

The Leonardo SAPHIRA is a HgCdTe linear avalanche photodiode array enabling high frame rate, high sensitivity, low noise, and low dark current imaging at near-infrared wavelengths. The ANU utilised the Leonardo SAPHIRA to develop a high cadence “Lucky Imager” which was successfully tested on sky at Siding Spring Observatory. The cryogenic electronics and cryostat were designed and built by the ANU. The cryostat was cooled with a compact Stirling cycle cryocooler with active vibration damping. Various detector control systems were tested, including an ESO 'NGC' system and also a 32 channel ARC SDSU Series III. Images were ultimately captured at a windowed frame rate of 2.2 kHz with the ESO NGC controller.

Citation Download Citation

Annino Vaccarella, Robert Sharp, Michael Ellis, James Gilbert, Shanae King, and David Adams "Lucky imaging with the Leonardo SAPHIRA at Siding Spring Observatory", Proc. SPIE 11203, Advances in Optical Astronomical Instrumentation 2019, 1120313 (3 January 2020); https://doi.org/10.1117/12.2539779

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