NGS2: A focal plane array upgrade for the GeMS multiple tip-Tilt wavefront sensor
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Rigaut, Francois
Price, Ian
d'Orgeville, Celine
Bennet, Francis
Herrald, Nicholas
Uhlendorf, Kristina
Garrel, Vincent
Sivo, Gaetano
Montes, Vanessa
Trujillo, Chadwick
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SPIE
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NGS2 is an upgrade for the multi-natural guide star tip-tilt & plate scale wavefront sensor for GeMS (Gemini Multi-Conjugate Adaptive Optics system). It uses a single Nüvü HNü-512 Electron-Multiplied CCD array that spans the entire GeMS wavefront sensor focal plane. Multiple small regions-of-interest are used to enable frame rates up to 800Hz. This set up will improve the optical throughput with respect to the current wavefront sensor, as well as streamline acquisition and allow for distortion compensation.
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Proceedings of SPIE - Volume 9909, Adaptive Optics Systems V
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Open Access
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