24 July 2014 Gemini planet imager one button approach
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Abstract
The Gemini Planet Imager (GPI) is an “extreme” adaptive optics coronagraph system that is now on the Gemini South telescope in Chile. This instrument is composed of three different systems that historically have been separate instruments. These systems are the extreme Adaptive Optics system, with deformable mirrors, including a high-order 64x64 element MEMS system; the Science Instrument, which is a near-infrared integral field spectrograph; and the Calibration system, a precision IR wavefront sensor that also holds key coronagraph components. Each system coordinates actions that require precise timing. The observatory is responsible for starting these actions and has typically done this asynchronously across independent systems. Despite this complexity we strived to provide an interface that is as close to a onebutton approach as possible. This paper will describe the sequencing of these systems both internally and externally through the observatory.
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Jennifer Dunn, Dan Kerley, Leslie Saddlemyer, Malcolm Smith, Robert Wooff, Dmitry Savransky, David Palmer, Bruce Macintosh, Jason Weiss, Carlos Quiroz, Fredrik T. Rantakyrö, Stephen J. Goodsell, "Gemini planet imager one button approach", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 914750 (24 July 2014); doi: 10.1117/12.2057231; http://dx.doi.org/10.1117/12.2057231
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KEYWORDS
Gemini Planet Imager

Calibration

Adaptive optics

Gemini Observatory

Mirrors

Wavefront sensors

Coronagraphy

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