12 July 2018 Cryogenic detector preamplifer developments at the ANU
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Abstract
We present a summary of the cryogenic detector preamplifier development programme under way at the ANU. Cryogenic preamplifiers have been demonstrated for both near-infrared detectors (Teledyne H1RG and Leonardo SAPHIRA eAPD as part of development for the GMTIFS instrument) and optical CCDs (e2v CCD231-84 for use with the AAT/Veloce spectrograph). This approach to detector signal conditioning allows low-noise instrument amplifiers to be placed very close to an infra-red detector or optical CCD, isolating the readout path from external interference noise sources. Laboratory results demonstrate effective isolation of the readout path from external interference noise sources. Recent progress has focussed on the first on-sky deployment of four cryogenic preamp channels for the Veloce Rosso precision radial velocity spectrograph. We also outline future evolution of the current design, allowing higher speeds and further enhanced performance for the demanding applications required for the on instrument wavefront sensor on the Giant Magellan Integral Field Spectrograph (GMTIFS).
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Annino Vaccarella, Annino Vaccarella, Robert Sharp, Robert Sharp, Michael Ellis, Michael Ellis, Antonin Bouchez, Antonin Bouchez, Rodolphe Conan, Rodolphe Conan, R. Boz, R. Boz, David Bundy, David Bundy, Gaston Gausachs, Gaston Gausachs, James Gilbert, James Gilbert, Luke Gers, Luke Gers, John Hart, John Hart, Nick Herrald, Nick Herrald, Michael Ireland, Michael Ireland, Jon Nielsen, Jon Nielsen, Ian Price, Ian Price, Colin Vest, Colin Vest, Henry Zovaro, Henry Zovaro, } "Cryogenic detector preamplifer developments at the ANU", Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 1070923 (12 July 2018); doi: 10.1117/12.2313023; https://doi.org/10.1117/12.2313023
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