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Lucky imaging with the Leonardo SAPHIRA at Siding Spring Observatory
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Paper 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.

Paper Details

Date Published: 3 January 2020
PDF: 2 pages
Proc. SPIE 11203, Advances in Optical Astronomical Instrumentation 2019, 1120313 (3 January 2020); doi: 10.1117/12.2539779
Show Author Affiliations
Annino Vaccarella, The Australian National Univ. (Australia)
Robert Sharp, The Australian National Univ. (Australia)
Michael Ellis, The Australian National Univ. (Australia)
James Gilbert, The Australian National Univ. (Australia)
Shanae King, The Australian National Univ. (Australia)
David Adams, The Australian National Univ. (Australia)


Published in SPIE Proceedings Vol. 11203:
Advances in Optical Astronomical Instrumentation 2019
Simon C. Ellis; Céline d'Orgeville, Editor(s)

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